Archive-name: sun-hdwr-ref/part4
Posting-Frequency: as revised
Version: $Id: part4,v 1.10 1995/08/27 19:20:04 jwbirdsa Exp $
THE SUN HARDWARE REFERENCE
compiled by James W. Birdsall
(jwbirdsa@picarefy.com)
PART IV
=======
BOARDS (cont'd)
BOARDS (cont'd)
===============
Memory boards
-------------
501-1013 1M Multibus
One megabyte of zero-wait-state memory with parity, consisting
of 144 64K x 1-bit chips. Connected to the processor by the
Multibus P2 connector only; the Multibus P1 connector is used
only for +5V and ground connections.
Eight-position DIP switch U506 controls the address at which the
board appears. The switches are all mutually exclusive. To make
the board the first megabyte (starting at address 0), turn
switch 1 ON and all others OFF. To make the board the second
megabyte (starting at address 0x100000), turn switch 2 ON and
all others OFF, etc. Via this method, the board may be set for
any megabyte from the first to the eighth; the eighth is only
available for memory when a monochrome display board is not
present in the system.
Power requirements are +5V @ 3A.
501-1020 2/50 1M VME
The information on this and related boards is a bit spotty. The
configurations shown below are only some of the possible
configurations. Take with a grain of salt.
J2100
Unjumpered always.
J2200 Base address
1M: 3-4 jumpered, all others unjumpered
J2201 Memory size
1M @ 64Kx1 1M @ 256Kx1 2M @ 256Kx1 4M @ 256Kx1
---------- ----------- ----------- -----------
1-2 UN JU UN UN
3-4 UN JU JU UN
5-6 JU UN UN UN
7-8 UN JU JU JU
9-10 JU UN UN UN
11-12 UN UN JU JU
13-14 JU UN UN UN
15-16 UN UN UN JU
J2202
Not used.
501-1046 2/50 2M VME
See 501-1020.
501-1047 2/50 4M VME
See 501-1020. Note that this board cannot coexist with a 4M 2/50
CPU, since the eighth megabyte is occupied by the monochrome
framebuffer
501-1048 1M Multibus
Laid out differently than 501-1013, but functionally the same.
The address DIP switch is in a different location but is set in
the same manner. See 501-1013.
501-1067 2/50 3M VME
See 501-1020.
501-1079 2/50 0M VME
See 501-1020. This board is intended as a host for the piggyback
SCSI controller or Sky floating point processor.
501-1102 8M VME 3/2xx
Eight megabytes of ECC memory consisting of 256K x 1-bit chips,
with onboard refresh control.
The first memory board in a Sun 3/2xx must always be in VME slot
6 and must have a 220/270-ohm terminator pack at location 34-F.
Up to four boards are supported, with the other three boards
being in slots 2-4, and not having the terminator pack installed
at location 34-F.
The jumper on the upper rear edge of the board (accessible
through the back panel) determines the memory location of the
board, in 8M increments. The first board should have the jumper
set to 0 (at the bottom); additional boards should be set to 1
through 3 (moving toward the top of the board) in order.
There are five LEDs on the upper rear edge of the board. In
normal operation, only the two green LEDs should be lit.
UE Uncorrectable error (when lit) RED
CE Correctable error (when lit) YELLOW
DIS CPU access disabled (when lit) YELLOW
CPU CPU accessing memory GREEN
This LED flickers because it is only lit when the CPU is
actually accessing the memory on the board. If the LED is not
flickering, that simply means you have more memory than you
need at the moment -- the board is not being accessed
significantly.
REF Refresh OK (when lit) GREEN
If this LED is not lit, refresh has failed and the board
should be repaired or replaced.
501-1131 2M VME 3/1xx
Two megabytes of memory, similar in construction to the 501-1132
4M memory board.
There are two jumpers near one of the VME connectors. The one
nearest the connector should be jumped, and the other unjumped.
There are two DIP switches (U3118 and U3119) near the jumpers.
These set the base address of the board. The switch positions
are mutually exclusive; within each bank, only one should be ON
at a time. U3119 is apparently not used for this board.
U3118
1 unknown
2 base address 0x200000 (starts at 2M)
3 base address 0x400000 (starts at 4M)
4 base address 0x600000 (starts at 6M)
5-8 unknown
501-1132 4M VME 3/1xx
Four megabytes of memory, similar in construction to the
501-1131 2M memory board.
There are two jumpers near one of the VME connectors. The one
farther away from the connector should be jumped, and the other
unjumped.
There are two DIP switches (U3118 and U3119) near the jumpers.
These set the base address of the board. The switch positions
are mutually exclusive; within each bank, only one should be ON
at a time.
base address U3118 U3119
------------ ----- -----
0x200000 (2M) 2 3
0x400000 (4M) 3 4
0x600000 (6M) 4 5
0x800000 (8M) 5 6
0xA00000 (10M) 6 7
0xC00000 (12M) 7 8
501-1232 4M Multibus
Four megabytes of memory, with parity, consisting of 144 256K x 1
chips, 120ns. 14-pin jumper at U1115, may control address. My board
is the first 4M of RAM and pins 1-2, 3-4, 5-6, and 7-8 are jumped.
Video boards
------------
VIDEO STANDARDS
MONO
bwone
Sun-1 monochrome framebuffer.
bwtwo
The standard monochrome framebuffer, found in everything
from the first Sun-2 to desktop SPARCs, and the 386i as
well. Standard resolution is 1152 x 900 and high
resolution is 1280 x 1024; other resolutions (1024 x
1024?) may exist.
MG
MG standards are apparently monochrome framebuffers with analog
outputs connected to grayscale monitors. Still researching this one.
COLOR
Note that the ROM monitor in a machine may or may not know about any
particular color framebuffer, depending on the revision of the ROM and
the age of the framebuffer standard. If the ROM does not know how to
detect/display on the particular color framebuffer you have installed,
it will be unable to display the normal ROM boot messages. This does not
affect OS support for the framebuffer; if you are willing to boot blind,
SunOS should find the framebuffer and start displaying on it normally.
The alternative is to get a more recent ROM or a different framebuffer.
cgone
Sun-1 color framebuffer. Can run SunWindows. The
hardware occupies 16K of Multibus address space, by
default starting at addresses 0xE8000 or 0xEC000 and
using interrupt level 3.
cgtwo
VME-based color framebuffer found in Sun-2's and up. The
hardware occupies 4M of VMEbus address space, by default
starting at address 0x400000 and using interrupt level
4.
cgthree
8-bit color framebuffer found in Sun-4's and Sun-386i's.
cgfour
8-bit color framebuffer, found in Sun-3's and Sun-4's,
with a monochrome overlay plane and an overlay enable
plane on the 3/110 and some 3/60 models. It is the
onboard framebuffer for the 3/110. The SunOS driver
implements ioctls to get and put colormaps; the 3/60
models have an overlay plane colormap as well.
cgfive
Can be used alone or with the GP2 accelerator.
cgsix
8-bit accelerated (GX) color framebuffer, found in
Sun-3's and Sun-4's. The GX accelerator is a low-end
accelerator designed to enhance vector and polygon
drawing performance.
cgeight
24-bit color framebuffer, found in Sun-3's and Sun-4's,
with a monochrome overlay plane and in some cases an
overlay enable plane as well. Despite being 24-bit, the
SunOS driver is documented as implementing ioctls to get
and put colormaps.
cgnine
24-bit double-buffered VME-based color framebuffer, with
two overlay planes and the ability to work with the GP2
graphics accelerator board. In double-buffer mode, color
resolution is reduced to 12 bits.
cgtwelve
24-bit double-buffered SBus-based color framebuffer,
with graphics accelerator, an overlay plane and an
overlay enable plane. Apparently can run in an 8-bit
colormapped mode as well. In double-buffer mode, color
resolution is reduced to 12 bits.
cgfourteen
From the manpage: "The cgfourteen device driver controls
the video SIMM (VSIMM) component of the video and graphics
subsystem of the SPARCstation 10SX. The VSIMM provides
24-bit truecolor visuals in a variety of screen
resolutions and pixel depths."
ACCELERATORS
gpone
Generic name for Graphics Processor (GP), Graphics
Processor Plus (GP+), and Graphics Processor 2 (GP2)
boards. The hardware occupies 64K of VMEbus address space,
starting at address 0x210000 by default and using interrupt
level 4.
VIDEO BOARDS
MONO
501-1003 monochrome video/keyboard/mouse TTL only Multibus
From top to bottom on the rear edge of the board are a female
DB-9 video connector, a header connector for the serial type 2
keyboard, and a header connector for the serial Sun-2 mouse.
This board must be placed in a slot in the Multibus P2
section shared by the CPU. For backplane P/N 501-1090, it must
be placed in slot 6 to terminate the P2 bus; for newer
backplanes, it is usually placed in slot 6 anyway.
DIP switch and jumper information for revisions -03 through -07:
U100 DIP switch video board address
Eight-position DIP switch. All switches are mutually exclusive
and they correspond to megabyte sections of the address space
in the same way as the 501-1013 memory board. The first video
board must be set to the eighth megabyte, which means switch
eight must be ON and all others must be OFF.
J1903 jumper serial interrupt level select
pins 13-14 jumped by default, all others unjumped
J1904 jumper video interrupt level select
pins 9-10 jumped by default, all others unjumped
Power requirements are +5V @ 4A.
501-1052 monochrome video/keyboard/mouse ECL/TTL Multibus
From top to bottom on the rear edge of the board are a female
DB-9 video connector, a header connector for the serial type 2
keyboard, and a header connector for the serial Sun-2 mouse.
This board must be placed in a slot in the Multibus P2
section shared by the CPU. For backplane P/N 501-1090, it must
be placed in slot 6 to terminate the P2 bus; for newer
backplanes, it is usually placed in slot 6 anyway.
Jumper information (note that pin 1 is to the right if you
hold the board with the printing right-side up -- the same
orientation as the ICs):
J1600
Bits read on startup to determine size of screen, either
standard (1152 x 900) or 1000 x 1000. Pins 9 through 16 are
not used and unjumped. Pins 3-4, 5-6, and 7-8 are always
jumped. Pins 1-2 are jumped for the standard screen and
unjumped for the 1000 x 1000 screen.
J1801 Crystal Shunt JUMPED by default
When jumped, the crystal signal is active; when unjumped, the
crystal is disabled for A.T.E. testing.
J1803 video levels
To select TTL (very early Sun-2 monitors), jump pins 1-2 and
5-6, unjump 3-4 and 7-8. To select TTL/ECL (all monochrome
monitors since then, including any that can work with
Sun-3's), jump 3-4 and 7-8 and unjump 1-2 and 5-6.
J1804 Ground test point UNJUMPED by default
Used during troubleshooting only.
J1903 Serial interrupt level select
Located at N3, farther away from the bus connectors.
pins 13-14 jumped by default, all others unjumped
J1904 Video interrupt level select
Located at N3, nearer the bus connectors.
pins 9-10 jumped by default, all others unjumped
Power requirements are +5V @ 4A.
COLOR
501-0289 color video Multibus
Jumper information:
J1
1-2 VODD JUMPED by default
3-4 VRESET JUMPED by default
5-6 SYSCP1 JUMPED by default
7-8 HRESET JUMPED by default
9-10 STATE 11 JUMPED by default
J2
1-2 M0 JUMPED by default
3-4 M1 JUMPED by default
5-6 M2 JUMPED by default
7-8 M3 JUMPED by default
9-10 M4 JUMPED by default
11-12 M5 JUMPED by default
J3 Color board interrupt level
pins 5-6 jumped by default, all others unjumped
J4 Invert BBUS.A0
1-2 JUMPED by default
3-4 UNJUMPED by default
J5 Ground the P2 bus
All pins (1-2, 3-4, 5-6, 7-8, 9-10, 11-12) jumped by default.
Power requirements are +5V @ 6A and -5V @ 1.2A.
501-1014 Sun-2 color framebuffer VME
Output resolution 1152 x 900, 66Hz vertical refresh, 62KHz
horizontal sync. Known to work in 2/160, 3/160, 3/180, 3/260,
3/280, 3/460, 3/470, 3/480.
501-1058 GB graphics buffer VME
Used with GP graphics accelerator. Known to work in 2/160,
3/160, 3/180, 3/260, 3/280, 3/460, 3/480, 4/150, 4/260, 4/280,
4/330, 4/350, 4/360, 4/370, 4/380.
501-1089 cg3 color framebuffer VME
Output resolution 1152 x 900, 66Hz vertical refresh, 62KHz
horizontal sync. Known to work in 3/160, 3/180, 3/260, 3/280,
3/460, 3/480, 4/150, 4/260, 4/280, 4/330, 4/350, 4/360, 4/370,
4/380.
501-1116 cg3 color framebuffer VME
See 501-1089.
501-1267 cg5 color framebuffer VME
Output resolution 1152 x 900, 66Hz vertical refresh, 62KHz
horizontal sync. Known to work in 3/160, 3/180, 3/260, 3/280,
3/460, 3/480, 4/150, 4/260, 4/280, 4/330, 4/350, 4/360, 4/370,
4/380, 4/470, 4/490.
If this board is installed with a GP2, then the P2 bus must be
enabled to communicate with the GP2. Otherwise, the P2 bus must
be disabled.
501-1319 cg3 color framebuffer VME
See 501-1089.
501-1434 cg9 color framebuffer VME
Output resolution 1152 x 900, 66Hz vertical refresh, 62KHz
horizontal sync. Known to work in 3/160, 3/180, 3/260, 3/280,
3/460, 3/480, 4/150, 4/260, 4/280, 4/330, 4/350, 4/360, 4/370,
4/380, 4/470, 4/490.
ACCELERATORS
501-1055 GP graphics processor VME
Known to work in 2/160, 3/160, 3/180, 3/260, 3/280, 3/460,
3/480, 4/150, 4/260, 4/280, 4/330, 4/350, 4/360, 4/370, 4/380.
501-1139 GP+ graphics processor VME
Known to work in 2/160, 3/160, 3/180, 3/260, 3/280, 3/460,
3/480, 4/150, 4/260, 4/280, 4/330, 4/350, 4/360, 4/370, 4/380.
501-1268 GP2 graphics processor VME
Known to work in 3/160, 3/180, 3/260, 3/280, 3/460, 3/480,
4/150, 4/260, 4/280, 4/330, 4/350, 4/360, 4/370, 4/380, 4/470,
4/490.
SCSI controller boards
----------------------
501-1006 Sun-2 SCSI/serial Multibus
SCSI interface and four serial lines with full modem control.
Identifiable by its three 50-pin header connectors, one of which
(J3, the bottommost) is the SCSI interface and the other two of
which (J1 and J2) are the serial lines.
There are three DIP switches: U305, U312, and U315. Holding the
board with the 50-pin header connectors down and component side
toward you, U312 is lowest, U315 in the middle, and U305 at the
top. All three are eight-position.
U305 SCSI board base address/bus priority in (BPRN)
Switches one through six correspond to address bits A14
through A19 respectively. The default setting is switch six
on, switches one through five off. Switch eight grounds the
bus priority in (BPRN) line and must be OFF; it should be ON
only if you are configuring the board as the highest-priority
DMA master in a serial card cage (i.e. a non-Sun
configuration).
U312 SCSI interrupt priority
Switches eight through one correspond to interrupt priorities
0 through 7 in that (reverse) order. The default is for switch
six to be ON and all others OFF, which yields an interrupt
priority of 2.
U315 Serial interrupt priority
Switches eight through one correspond to interrupt priorities
0 through 7 in that (reverse) order. The default is for switch
two to be ON and all others OFF, which yields an interrupt
priority of 6.
Serial ports C and D appear on connector J2, E and F on
connector J1. These are usually labelled SIO-S0 through SIO-S3
on the back of the machine (SIO-C through SIO-F on older
machines) and appear as /dev/ttys0 through /dev/ttys3 under
SunOS. If you have a second SCSI/serial board, the serial ports
appear as /dev/ttyt0 through /dev/ttyt3 under SunOS. The
documented maximum output speed is 19200 bps. All ports are
wired DTE and are compatible with both RS-232C and RS-423, using
Zilog Z8530A dual UART chips. The pinout of J2 is:
3 TxD-C 14 DTR-C 33 DD-D
4 DB-C 15 DCD-C 34 CTS-D
5 RxD-C 22 DA-C 36 DSR-D
7 RTS-C 24 BSY-C 38 GND-D
8 DD-C 28 TxD-D 39 DTR-D
9 CTS-C 29 DB-D 40 DCD-D
11 DSR-C 30 RxD-D 47 DA-D
13 GND-C 32 RTS-D 49 BSY-D
The pinout of J1 is exactly similar; substitute "E" for "C" and
"F" for "D".
Power requirements are +5V @ 5A.
501-1045 "Sun-2" SCSI host adapter, 6U VME
Used with various 6U/9U VME adapters to produce the 501-1138,
501-1149, and 501-1167. Uses PALs and logic sequencers to
implement SCSI protocols. Frequently found in Sun-3's despite
name.
There are DIP switches at U702 and U704. The bits are inverted,
so the default settings correspond to an address of 0x200000.
U702 VMEbus address, low bits
1-4 not connected
5-8 A12-A15 ON by default
U704 VMEbus address, high bits
1-5 A16-A20 ON by default
6 A21 OFF by default
7-8 A22-A23 ON by default
501-1138 "Sun-2" SCSI host adapter, external, VME
A 501-1045 6U VME SCSI host adapter in a 270-1138 6U/9U VME
adapter, which provides only an external D50 connection. See
501-1045. See 3/50 motherboard listing for pinout.
501-1149 "Sun-2" SCSI host adapter, internal, VME
A 501-1045 6U VME SCSI host adapter in a 270-1059 6U/9U VME
adapter, which provides only an internal connection to VME slot
7 in 12-slot chassis. See 501-1045.
501-1167 "Sun-2" SCSI host adapter, external/internal, VME
A 501-1045 6U VME SCSI host adapter in a 270-1059 6U/9U VME
adapter, which provides only an internal connection to VME slot
7 in 12-slot chassis, but also with a 530-1282 cable/connector
to provide an external D50 connection as well. See 501-1045. In
order to use both sides of the bus, it is generally necessary to
remove the SCSI terminators from the 501-1045 board. See 3/50
motherboard listing for external pinout. Has a holder for a
coin battery which drives a clock chip that Suns don't use (see
Misc Q&A #6).
501-1170 "Sun-3" SCSI host adapter, internal, VME
A 501-1236 6U VME SCSI host adapter in a 270-1059 6U/9U VME
adapter, which provides only an internal connection to VME slot
7 in 12-slot chassis.
501-1217 "Sun-3" SCSI host adapter, external, VME
A 501-1236 6U VME SCSI host adapter in a 270-1138 6U/9U VME
adapter, which provides only an external D50 connection. See
501-1236. See 3/50 motherboard listing for pinout.
501-1236 "Sun-3" SCSI host adapter, 6U VME
Used with various 6U/9U VME adapters to produce the 501-1170 and
501-1217. Can also be used with a 270-1059 6U/9U VME adapter (as
in the 501-1170) paired with a 530-1282 cable/connector to
provide an external D50 connection as well (generally requires
removing the SCSI terminators from the 501-1236 to use both
sides of the bus); this configuration was never supported by
Sun, so it doesn't have a part number, but is supposed to work.
Uses an NCR5380 SCSI chip.
There are DIP switches at U408 and U409.
SW1 VMEbus address
At U409.
1-2 ON by default
3 OFF by default
4-8 ON by default
SW2 VMEbus address
At U408.
1 ON by default
2 ON for first host adapter, OFF for second
3-5 ON by default
6-8 not connected
Non-SCSI disk controller boards
-------------------------------
SMD
370-1012 Xylogics 450 SMD controller Multibus
This board is used to control SMD hard disks. It is a Multibus
bus master using variable-burst-length DMA.
This board should not share a Multibus P2 section with Sun-2 CPU
or memory boards because it has P2 traces which are incompatible
with those used on the Sun-2 CPU and memory boards.
Since this board is a Multibus bus master, its relative slot
number determines its priority (slot 1 is the highest). The
board must be placed in a lower-priority position than the Sun-2
CPU board for proper handling of bus arbitration. It should also
be placed in a lower-priority position than the 370-0502 (?)
TAPEMASTER half-inch tape controller board, if there is one in
the system, but it may be placed in a higher-priority position
than the 501-1006 SCSI/serial board.
This board dissipates a fair amount of heat and should be placed
in the most central position possible, subject to the
considerations listed above. For maximum air circulation, leave
the slot to the left of this board empty, if possible.
The edge of the board has one 60-pin header connector for SMD
control and four 26-pin header connectors for SMD data; however,
only two SMD disks are supported per board by SunOS. There is no
required order of connection from SMD disks to SMD data
connectors; the board automatically detects which disk is
connected to which data connector.
At one corner of the SMD-connector-edge of the board is a small
LED, which flickers during disk activity.
This board has dozens of jumper blocks, some of which are
cross-jumped to other jumper blocks.
JA-JB crossjumped always from one to the other
Located at K3.
1-1 8/16-bit address control UNJUMPED by default
2-2 address bit 16 UNJUMPED by default
3-3 address bit 8 JUMPED by default
4-4 address bit 15 UNJUMPED by default
5-5 address bit 9 UNJUMPED by default
6-6 address bit 14 UNJUMPED by default
7-7 address bit 10 UNJUMPED by default
8-8 address bit 12 JUMPED by default
9-9 address bit 11 UNJUMPED by default
These address bits are inverted; the pattern above
(0x11) actually yields address 0xEE??.
10-10 ground UNJUMPED by default
JE
Located at K4, more or less.
1-2 parallel DMA arbiter/BPRO JUMPED by default
3 isolate parallel DMA -
4-5 address bit 7 JUMPED by default
This address bit is also inverted.
JF
1-JH1 bus activity LED CROSSJUMPED by default
Does not appear on my Rev. M board, JH1 is wired
directly to pin 1 on E6 (a 74LS273) instead.
JH
Located at N10, right by P2 bus connector.
1 CROSSJUMPED to JF1 by default
See JF1.
2 power fail protection -
3-4 inhibits DMA sequencer CLK UNJUMPED by default
5-6 selects DMA sequencer CLK JUMPED by default
JJ
Located at J12.
1-2 inhibit disk sequencer CLK JUMPED by default
3-4 UNJUMPED by default
JK
Located at N11.
Eight-pin jumper block, all unjumped by default.
On my Rev. M board, pins 1-2, 3-4, and 5-6 are
jumped.
JM
Located at N13, very lower right corner by P2 bus
connector.
1-2 16-24 bit mode UNJUMPED by default
3-4 16-20 bit mode JUMPED by default
5-6
Not listed in docs, appear on my Rev. M board,
unjumped.
JN
Can't find on my Rev. M board.
1-2 UNJUMPED by default
JT
Located at K1-K2ish.
1-2 optional 8K JUMPED by default
3 -
JV
Located at B3.
1-2 optional 8K JUMPED by default
3 -
JX interrupt request level
Located at N4.
1-2 UNJUMPED by default
3 -
4-E2 interrupt level 2 JUMPED by default
NOTE that this is NOT jumper pin JE2 but rather
another pin labeled just "E2".
5-6 UNJUMPED by default
7-8 UNJUMPED by default
JY
Located at G9ish.
1-2 close ECC feedback JUMPED by default
3 -
JZ crystal shunt
Located in upper right corner by thumblever.
Jumped by default.
For the first XY450 board, jump JC1-JR1, JC2-JD2, JC3-JD3, and
JC4-JD4. For the second XY450 board (only two are supported by
SunOS), jump JC1-JR1, JC2-JD2, JC3-JD3, and JC4-JR4. Pins one
through four of JC correspond to address bits six through three
in that (reverse) order. Jumping JC to JR selects the bit;
jumping JC to JD deselects the bit. Hence, the address of the
first board is 0xEE40 and the second 0xEE48. These jumper blocks
are located at K4, right by the JE block.
Power requirements are +5V @ 8A and -5V @ 1A.
IPI
501-1855 ISP-80 IPI controller VME
This board allows connection of IPI drives (q.v. for information
on IPI in general) to a VME-based machine. It has an onboard
68020 and RAM for handling I/O optimization and buffering. It
has a maximum DMA tranfer rate of 16M per second, but the IPI
maximum disk tranfer rate is only 6M.
Note that older firmware revisions may have problems with newer
disks.
SCSI ADAPTORS
370-1010 Adaptec ACB4000 SCSI-MFM controller
This board allows an MFM hard disk with a standard ST-506
interface to be connected to a SCSI bus. The Adaptec ACB4070A
SCSI-RLL controller is almost identical.
This board supports up to two MFM drives, which appear as SCSI
LUNs 0 and 1 within the SCSI ID for the board as a whole.
Connection information:
J0 20-pin MFM data connector for drive 0
J1 20-pin MFM data connector for drive 1
J2 34-pin disk control connector
J3 power
J4 50-pin SCSI connector
Jumper information:
JS,JR,JT,JPU
R-S select precomp at cylinder 400 UNJUMPED by default
R-T select precomp on all cylinders UNJUMPED by default
R-PU deselects precomp on all cylinders JUMPED by default
J5
A-B SCSI id MSB
C-D SCSI id
E-F SCSI id LSB
Pins A-F are used to set the SCSI bus address. Jumping
a pair of pins turns that bit on; unjumping them turns
that bit off. The default SCSI bus address is 0, all
pins unjumped.
G-H DMA transfer rate UNJUMPED by default
SYSCLOCK/4 when jumped, DATACLOCK/2 when unjumped.
I-J Extended commands enable/disable UNJUMPED by default
K-L not used UNJUMPED by default
M-N selects a seek complete status UNJUMPED by default
Also described as "Support Syquest 312/DMA 360".
O-P Self-diag UNJUMPED by default
SCSI terminator packs at RP3 and RP4, sometimes (usually?)
soldered in.
Error Codes (number of half-second bursts):
None 8085
1 8156 RAM
2 Firmware
3 AIC-010 logic
4 AIC-010 logic
5 AIC-300 logic
6 AIC-010 BUS
Power requirements are +5V @ 2A (1.5A?) and +12V @ 0.5A (0.3A?).
xxx-xxxx Emulex MD21 SCSI-ESDI controller
This board allows an ESDI disk to be connected to a SCSI bus.
The MD21 can actually control two ESDI disks, which appear as
SCSI logical units (LUNs) 0 and 1 on the SCSI ID assigned to the
MD21 as a whole.
The MD21 uses a 8031 CPU with 32K PROM. It has 32K of onboard
buffer RAM, with about 14K being used for each connected disk.
It supports ESDI transfer rates up to 15Mbps and SCSI transfer
rates up to 1.25Mbps (burst). It supports the SCSI
connect/disconnect option and SCSI bus parity. Manufacturer's
rated Mean Time Between Failures is 42,425 hours.
This board has one eight-position DIP switch and seven
connectors.
SW1
1-3 SCSI bus ID, LSB (SW1-1) to MSB (SW1-3)
4 not used
5 physical sector size
ON 256 bytes
OFF 512 bytes
6 automatic drive spinup
ON drives not spun up automatically
OFF drives spun up automatically
7 soft error reporting
ON errors not reported
OFF errors reported
8 SCSI bus parity
ON enabled
OFF disabled
J1 ESDI control (daisy-chained to both disks)
maximum cable length 10 feet
J2 ESDI data for drive 1
maximum cable length 10 feet
J3 ESDI data for drive 0
maximum cable length 10 feet
J4 user panel connector
J5 testing
J6 SCSI bus
J7 power
This board can be configured to provide power to an external
terminator by installing a 1N5817 diode at board location CR2
and connecting wire wrap jumper E to F. This will provide
termination power on SCSI bus pin 26. WARNING: this can cause
shorts!
This board has two status LEDs, one red and one green.
RED GREEN
--- -----
OFF OFF hardware reset test
OFF ON 8031 test
PROM checksum test
buffer controller test
dynamic RAM test
ON OFF disk formatter test
SCSI controller test
ON ON self-test passed, ready to run
During normal operations, the green LED seems to blink steadily.
Power requirements are +5V @ 1.5A.
Non-SCSI tape controller boards
-------------------------------
HALF-INCH NINE-TRACK
370-0502 ? Computer Products Corporation TAPEMASTER
This part number is listed as either the TAPEMASTER or the
Xylogics 472 tape controller in different places. The TAPEMASTER
is also listed as 370-0167.
This board should not share a Multibus P2 section with Sun-2 CPU
or memory boards.
This board is a Multibus bus master, so its relative slot
number determines its priority (slot 1 is the highest). The
board must be placed in a lower-priority position than the Sun-2
CPU board for proper handling of bus arbitration. It should also
be placed in a higher-priority position than the 370-1012
Xylogics 450 SMD controller board, if there is one in the
system.
DIP switch and jumper information:
S1 addressing
Eight-position DIP switch, selecting address bits A1 through
A7 and 8/16-bit addressing. The first TAPEMASTER board should
have switches 1 and 3 OFF and all others ON. The second
TAPEMASTER board should have switches 1, 3, and 7 OFF and all
others ON.
S2 addressing
Eight-position DIP switch, selecting address bits A8 through
A15. All switches should be ON.
jumper pins (defaults in uppercase):
1-2 UNJUMPED for Sun-2 backplanes, jumped for serial
backplane (Sun-1/100U)
3-4 JUMPED if the CPU is set up to support CBRQ, unjumped if
not
3-5 jumped if the CPU is not set up to support CBRQ,
UNJUMPED if it is
JUMPED BY DEFAULT
INT-3 28-29 35-39 43-49 48-49
15-16 31-39 36-40 44-49 42-50
18-19 32-39 37-39 45-49 51-52
20-21 33-39 38-39 46-49 54-55
25-26 34-39 41-49 47-49 57-58
UNJUMPED BY DEFAULT
22 27 30 53 56 59-60
Power requirements are +5V @ 4A.
SCSI ADAPTORS
370-1011 Sysgen SC4000 SCSI/QIC-II controller
This board is used to connect a QIC-II (aka QIC-02) quarter-inch
cartridge tape drive to the SCSI bus. The board supports only
one attached tape drive, usually a QIC-11 (20M) drive. It was
standard equipment on the 2/120.
There are two LEDs (DS1 and DS2) in one corner of the board. DS2
is on when the board is selected (during SCSI activity).
Connection information:
JH 50-pin SCSI connector
JT 50-pin tape connector, labelled "TAPE"
Note that there is a 50-pin SCSI connector labelled "SLAVE" on
the board as well. The Sysgen manual recommends connecting
downstream SCSI devices to this connector instead of using an
inline connector on JH; Sun recommends against this, because
doing so will result in loss of access to all downstream devices
if the Sysgen board fails.
DIP switch and jumper information:
four-position DIP switch SCSI address
Switches one, two, and three correspond to SCSI address bits
one, two, and three respectively. The default is SCSI address
4: switches one and two OFF, switch three ON. Switch four
should always be OFF.
PK6 DIP sockets SCSI termination
PK7
220/330-ohm terminator packs
W1 jumper
Eight pins, all unjumped by default.
Power requirements are +5V @ 2A.
xxx-xxxx Emulex MT-02 SCSI/QIC-02?(-36?) controller
This board is used to connect a quarter-inch cartridge tape
drive to the SCSI bus. It is the standard method of connecting a
QIC-24 (60M) drive to a Sun-3. Despite the name, the board is
reputed to actually attach QIC-36 (not QIC-02) devices to the
SCSI bus. So far I haven't found any documents which actually
say one way or the other.
With the component side of the board up and the power connector
J4 in the upper right corner, the tape data connector J3 is on
the left side, the SCSI connector J5 is on the right side, and
the eight-position DIP switch SW1 is in the upper left corner.
SW1 eight-position DIP switch
SW1-1 SCSI id LSB
SW1-2 SCSI id
SW1-3 SCSI id MSB
SW1-4 unused OFF by default
SW1-5 drive select 0 see table below
SW1-6 drive select 1
SW1-7 drive select 2 documented as OFF by default
SW1-8 SCSI bus parity OFF by default
ON enable
OFF disable
There are two jumpers, A-B and E-F.
A-B EPROM memory size select JUMPED by default
In the upper-leftish center.
E-F JUMPED for Archive Scorpion
UNJUMPED for Wangtek 5000E
Just inboard from the center of the tape data connector J3.
SCSI terminator packs are at U5 and U46. U5 is in the upper
right corner; U45 is in the lower right corner.
Drive type settings are:
SW1-7 SW1-6 SW1-5 Drive
0 0 0 Cipher QIC-36
0 0 1 *Archive Scorpion
0 1 0 Wangtek series 5000 basic
0 1 1 *Wangtek series 5000E
1 0 0 Kennedy 6500
1 0 1 ???
1 1 0 ???
1 1 1 ???
*Documented by Sun.
Ethernet and other network boards
---------------------------------
501-0288 3COM 3C400 Ethernet Multibus
This board is used in Sun-1 and Sun-2 configurations. It may be
distinguished from the 501-1004 Sun-2 Multibus Ethernet by
checking the location of the Ethernet cable connector, which is
toward the bottom of the board. (On the edge with the Multibus
connectors, the larger connector is toward the top.)
DIP switch and jumper information:
JP1 jumper Addressing size
JP2 jumper
With the board component-side up and the Multibus edge
connectors facing you, these jumpers are in the lower left
corner of the board. They should be set for 20-bit memory
addressing, with JP1 unjumped and JP2 jumped.
MRDC jumper
MWTC jumper
IORC jumper
IOWC jumper
To the right of JP1 and JP2. MRDC and MWTC should be jumped.
IORC and IOWC should be unjumped.
INT? jumper Ethernet interrupt level
Eight-position jumper, with pairs marked INT0 through INT7.
INT3 should be jumped, all others unjumped.
ADR17 DIP switch
In the bottom right corner of the board. All switches should
be set to OFF.
ADR13 DIP switch
Eight-position DIP switch; switches seven through one
correspond to address bits A13 through A19 in that (reverse)
order. For the first Ethernet board, switches one, two, and
three should be ON and all others OFF. For the second Ethernet
board, switches one, two, three, and seven should be ON and
all others OFF. Switch eight should ALWAYS be OFF.
The Ethernet address PROM is in component position I2.
Power requirements are +5V @ 5V and +12V @ 0.5A.
501-1004 Sun-2 Ethernet Multibus
This board may be distinguished from the 501-0288 3COM Multibus
Ethernet by checking the location of the Ethernet cable
connector, which is toward the top of the board (toward the same
short edge as the larger Multibus connector). The connector is a
header connector; electrically, it is AUI Ethernet.
Intel 82586 Ethernet controller chip, 256K of dual-ported
memory.
DIP switch and jumper information:
U503 DIP switch Register base address
Eight-position DIP switch; switches one through eight
correspond to address bits A12 through A19, respectively. For
the first Ethernet board, switches four and eight should be ON
and all others OFF. For the second Ethernet board, switches
three, four, and eight should be ON and all others OFF.
U505 DIP switch On-board memory base address
Eight-position DIP switch; switches one through four
correspond to address bits A16 through A19, respectively. For
the first Ethernet board, switch three should be ON and all
others OFF. For the second Ethernet board, switches two and
four should be ON and all others OFF.
U506 DIP switch Size of Multibus port into onboard memory
Eight-position DIP switch. For the first Ethernet board,
switches two, three, six, and seven should be ON and all
others OFF. For the second Ethernet board, switches one, four,
five, and eight should be ON and all others OFF.
J101 jumper Transceiver type
For type 1 (capacitive-coupled) transceivers, jumped. For type
2 (transformer-coupled) transceivers, unjumped. On my Rev. 12A
board, just a pair of solder pads, no wire -- permanently
unjumped.
J400 jumper M.BIG
"J400 allows the selection of M.BIG, or the input to Port B
(bank select circuitry) which has the address lines for 256K
DRAMs." Unjumped by default.
J401 jumper M.EXP
Multibus P2 address and data buffers enabled when jumped,
disabled when unjumped. If enabled, this board MUST have its
own private P2 section. ONLY boards which do not use the P2
bus at all may be one the same section. If disabled, this
board may be on the same P2 section as the CPU and memory
boards, or it may be on a P2 section used by other boards with
these notes: this board grounds pins P2-26, P2-32, P2-38, and
P2-50, and cannot tolerate voltages outside the range of 0-5V
on any other P2 pins. Sun-supplied boards meet these
requirements.
J500 hardwired jumper Ethernet interrupt level
Sets the Ethernet interrupt level. Pins 7-8 are hardwired
together, setting the interrupt level to 3. Level 7 is closest
to the edge of the board, level 0 closest to the center.
Power requirements are +5V @ 6A and +12V @ 0.5A.
Communications boards
---------------------
501-1006 Sun-2 SCSI/serial Multibus
See under "SCSI boards".
xxx-xxxx Systech MTI-800A/1600A Multiple Terminal Interface Multibus
There are two parts to the MTI-800A/1600A: a Multibus controller
board and a 19" rack-mountable chassis with eight (800A) or
sixteen (1600A) serial ports. The board should not share a
Multibus P2 section with Sun-2 CPU or memory boards.
This board provides two modes of operation: single character
transfer mode, in which data is transferred one character at a
time to or from the CPU, and block transfer mode, in which data
is moved between the board and memory via DMA. In this mode, the
board is a Multibus bus master and supports CBRQ.
This board has four eight-position DIP switches, near the center
of the board.
DIP switch information:
SW2 address
Switches 6 and 7 ON and all others OFF.
SW3 address/default channel configuration
1,2 OFF (?)
3 ON; between this and SW2, address set to 0x0620.
4,5 OFF (?)
6 8/16-bit addressing, ON/OFF respectively. OFF by default.
7,8 one stop bit, both OFF
SW4 default channel configuration
1,2 no parity, both OFF
3,4 eight bits, both ON
5-8 9600 baud: 5, 6, and 7 ON, 8 OFF
SW5 interrupt level
Switch 5 ON, all others OFF, for interrupt level 4
xxx-xxxx Systech VPC-2200 Versatec Printer/Plotter controller Multibus
This board should not share a Multibus P2 section with Sun-2 CPU
or memory boards.
This board is a Multibus bus-mastering DMA board with CBRQ
support. It supports two output channels: one channel supports
the Versatec printer/plotter in either single-ended or
long-lines differential mode, and the second supports any
standard Centronics- or Dataproducts-compatible printer at rates
up to 10,000 lines per minute. The two modes of the first
channel are transparent to the software. The second channel has
automatic printer selection which eliminates the need for
setting switches for either Centronics- or Dataproducts-type
printers.
This board has a self-test feature for both channels that does
not require any software support. The Versatec channel sends a
132-character ASCII string in print mode and a 256-byte pattern
in plot mode. The printer channel sends a 132-character ASCII
string.
DIP switch information:
SW3 8/16-bit I/O, big/little-endian, 8/16-bit addressing, address
Switches 3, 4, 5, 6, and 7 should be ON, all others OFF.
SW4 address
Switch 3 OFF, all others ON. Between this and SW3, the base
address is set to 0x0480.
SW5 interrupt priority
Switch 3 ON, all others OFF, for interrupt priority 2.
Floating-point and other system accelerators
--------------------------------------------
370-1021 Sky Floating Point Processor Multibus
This board must not share a Multibus P2 section with any Sun
board which also uses the P2 bus.
This board is an IEEE-compliant floating point coprocessor with
a Weitek chip.
This board has two jumper blocks, JP01 and JP02, in the lower
left corner of the board (with the Multibus edge connector
facing down and the component side facing you). These are
14-position blocks; pin 1 is in the lower left, pin 7 the lower
right, pin 8 the upper right, and pin 14 the upper left.
Jumper information:
JP01 address
As wired by Sky: 1-2 jumped
AS WIRED FOR USE IN A SUN: 1-11 jumped, address 0x2000
JP02 interrupt level
As wired by Sky: 2-6, 4-5 jumped
AS WIRED FOR USE IN A SUN: 1-6, 3-6, 4-5 jumped, interrupt level 2
Power requirements are +5V @ 4A.
501-1383 TAAC-1 application accelerator, POP board VME
One board of a two-board set. Known to work in 3/160, 3/180,
3/260, 3/280, 3/460, 3/480, 4/150, 4/260, 4/280, 4/330, 4/350,
4/360, 4/370, 4/380, 4/470, 4/490.
501-1447 TAAC-1 application accelerator, DFB board VME
One board of a two-board set. See 501-1383.
Cardcage backplanes
-------------------
501-1090 2/120 Multibus
Nine-slot passive Multibus backplane. Slot 6 must be occupied by
either a monochrome framebuffer board or a P2 terminator board.
Other boards
------------
501-1054 Multibus-VME Adapter
This board/frame accepts a normal Multibus card and connects it
electrically to a VME bus. It has twelve DIP switch blocks, a
PROM socket, and two jumpers, to allow it to be configured for
any particular board. It was initially introduced after the
transition to VME chassis in the Sun-2 era, and adapted Multibus
boards such as the Xylogics 451 SMD disk controller were
supported through the Sun-4 VME models.
DIP switch blocks 1 through 4 determine access to Multibus I/O
space from the VME bus. DIP switch blocks 5 through 8 determine
access to Multibus memory from the VME bus. DIP switch blocks 9
and 10 are unused. DIP switch block 11 is used with 20-bit-DMA
Multibus boards. DIP switch block 12 and the PROM socket map
Multibus interrupts to VME interrupts. The jumper block controls
the multibus BCLK and CCLK.
Multibus I/O space is mapped into the VME 16-bit address space.
Multibus memory space is mapped into the VME 24-bit address
space. Note that the address is the same on both buses (e.g. the
Xylogics 450 appears at Multibus I/O address 0xEE40; therefore
it will appear at VME address 0xEE40 as well).
SW1 Multibus I/O addresses, low
1 unused
2-8 A7-A1 in reverse order (2 is A7, 3 is A6, 8 is A1, etc.)
SW2 Multibus I/O block size, low
1 unused
2-8 A7-A1 in reverse order (2 is A7, 3 is A6, 8 is A1, etc.)
SW3 Multibus I/O addresses, high
1-8 A15-A8 in reverse order (1 is A15, 2 is A14, 8 is A8,
etc.)
SW4 Multibus I/O block size, high
1-8 A15-A8 in reverse order (1 is A15, 2 is A14, 8 is A8,
etc.)
SW5 Multibus memory addresses, low
1-8 A15-A8 in reverse order (1 is A15, 2 is A14, 8 is A8,
etc.)
SW6 Multibus memory block size, low
1-8 A15-A8 in reverse order (1 is A15, 2 is A14, 8 is A8,
etc.)
SW7 Multibus memory addresses, high
1-8 A23-A16 in reverse order (1 is A23, 2 is A22, 8 is A16,
etc.)
SW8 Multibus memory block size, high
1-8 A23-A16 in reverse order (1 is A23, 2 is A22, 8 is A16,
etc.)
SW9 Unused
SW10 Unused
SW11 20-bit-DMA
1-4 A23-A20 in reverse order (1 is A23, 2 is A22, 4 is A20,.
etc.)
5-8 unused
SW12 VME interrupt vector
1-8 Vector, LSB to MSB. Maps all Multibus interrupts to the
same VME vector. Use the PROM to map different Multibus
interrupts to different VME vectors. If the PROM is
installed, all switches in this block must be OFF.
J1 BCLK and CCLK (9.8304MHz)
1-2 jumped to provide Multibus bus clock (BLCK) to the
board, unjumped to not. Most boards require this clock
signal.
3-4 jumped to provide Multibus constant clock (CCLK) to the
board, unjumped to not. Most boards require this clock
signal.
To set the Multibus I/O switches (blocks 1 through 4):
1) Find the block size for your board. If it is not a power of
two, round it up to the nearest power of two.
2) Subtract one and throw away the lowest bit (A0 is not connected
to the switches -- the smallest possible block is two bytes).
3) For each zero bit, turn the corresponding switch ON, and OFF
for each one bit, in SW2 and SW4. Remember that the address
lines are reversed in the switch positions!
4) Find the base address for your board and bitwise-OR it with
the result from step 2, throwing away the lowest bit (A0 is
not connected to the switches).
5) For each zero bit, turn the corresponding switch ON, and OFF
for each one bit, in SW1 and SW3. Remember that the address
lines are reversed in the switch positions!
If you don't want to map any Multibus I/O space, set all
switches in SW1 and SW3 to ON, and SW2 and SW4 to OFF.
To set the Multibus memory switches (blocks 5 through 8):
1) Find the block size for your board. If it is not a power of
two, round it up to the nearest power of two.
2) Throw away the low byte (A0-A7 are not used -- the smallest
address increment is 256 bytes) and subtract one.
3) For each zero bit, turn the corresponding switch ON, and OFF
for each one bit, in SW6 and SW8. Remember that the address
lines are reversed in the switch positions!
4) Find the base address for your board and throw away the low
byte (A0-A7 are not used).
5) Bitwise-OR it with the result from step 2.
6) For each zero bit, turn the corresponding switch ON, and OFF
for each one bit, in SW5 and SW7. Remember that the address
lines are reversed in the switch positions!
If you don't want to map any Multibus memory, set all
switches in SW5 and SW7 to ON, and SW6 and SW8 to OFF.
If the Multibus board is a 24-bit-DMA master, set all switches
in SW11 to OFF. Otherwise, if it is a 20-bit-DMA master, use
switches 1-4 in SW11 to supply the A20-A23 of the DMA address.
As usual, 0 is ON and 1 is OFF. Note that "to access Sun main
memory via DVMA, these bits should be set to zero."
To use SW12 to set the VME interrupt vector, simply set the
desired vector value in the switches. As usual, 0 is ON and 1 is
OFF. To use the PROM to set VME interrupt vectors, program a
32-by-8 bipolar PROM with the vectors for Multibus interrupt
levels 7 through 1 in locations 0 through 6 respectively
(reversed). Note that Multibus interrupt 0 cannot be mapped,
"since the VMEbus has no level 0 interrupt."
Example: the 370-1012 Xylogics 450 SMD disk controller uses no
Multibus memory, has 8 bytes of Multibus I/O at address 0xEE40
(for the first controller), is a 24-bit-DMA board, wants VME
interrupt vector 0x48, and requires BCLK and CCLK. Hence:
1 2 3 4 5 6 7 8
SW1 (un) ON OFF ON ON ON OFF OFF
SW2 (un) ON ON ON ON ON OFF OFF
SW3 OFF OFF OFF ON OFF OFF OFF ON
SW4 -- all ON --
SW5 -- all ON --
SW6 -- all OFF --
SW7 -- all ON --
SW8 -- all OFF --
SW11 -- all OFF --
SW12 ON ON ON OFF ON ON OFF ON
J1 -- pins 1-2, 3-4 jumped --
Example: the 370-0502 (0167?) CPC Tapemaster 1/2" tape
controller uses no Multibus memory, has two bytes of Multibus
I/O at address 0x00A0, is a 20-bit-DMA board, wants VME
interrupt vector 0x60, and requires BCLK and CCLK. Hence:
1 2 3 4 5 6 7 8
SW1 (un) OFF ON OFF ON ON ON ON
SW2 (un) ON ON ON ON ON ON ON
SW3 -- all ON --
SW4 -- all ON --
SW5 -- all ON --
SW6 -- all OFF --
SW7 -- all ON --
SW8 -- all OFF --
SW11 -- all OFF --
SW12 ON ON ON ON ON OFF OFF ON
J1 -- pins 1-2, 3-4 jumped --
501-1671 SPARCcenter 2000 system control board
This board provides the hostid, Ethernet address, and possibly
other stuff to the motherboards installed in a SPARCcenter 2000.
It has a 'JTAG' connector at J0101 and a set of eight LEDs, half
yellow and half green. From the yellow end:
SVP Service Processor Attached Y
RST System Reset Y
STP0 Stop Request from CARB0 ASIC Y
STP1 Stop Request from CARB1 ASIC Y
Vbb -12VDC OK G
Vdd +12VDC OK G
Vtt +1.2VDC OK G
Vcc +5VDC OK G
At location U0203 is the EEPROM, a 2K x 8-bit TMS29F816, which
contains the hostid and Ethernet address. This part is not
field-replaceable. If the contents of the system control board
EEPROM are invalid, the values stored in the NVRAM on system
board 0 are used instead, and the yellow LED on the keyswitch
interface board is ON.
The update-system-idprom ROM monitor command downloads the
contents of the system board 0 NVRAM to the EEPROM on the system
control board. At least version 2.11 is required to do this.
To invalidate the contents of the system control board EEPROM,
use the following sequence of commands:
patch noop call update-system-idprom
patch noop call update-system-idprom
patch call noop update-system-idprom
update-system-idprom
501-1979 SPARCserver 1000 system control board
This board provides the hostid, Ethernet address, and possibly
other stuff to the motherboards installed in a SPARCserver 1000.
It has a variety of connectors, and a reset switch in one
corner.
J0101 'JTAG'
J1001 '5 1/4" SCSI power'
J1002 '3 1/2" SCSI power'
J1003 '3 1/2" SCSI power'
J1004 'Internal SCSI bus'
At location U0201 is the EEPROM, a 2K x 8-bit TMS29F816, which
contains the hostid and Ethernet address. This part is not
field-replaceable. If the contents of the system control board
EEPROM are invalid, the values stored in the NVRAM on system
board 0 are used instead, and the yellow LED on the power supply
is ON.
The update-system-idprom ROM monitor command downloads the
contents of the system board 0 NVRAM to the EEPROM on the system
control board. At least version 2.11 is required to do this.
To invalidate the contents of the system control board EEPROM,
use the following sequence of commands:
patch noop call update-system-idprom
patch noop call update-system-idprom
patch call noop update-system-idprom
update-system-idprom
501-2335 SPARCcenter 2000 system control board
See 501-1671.
501-2406 SPARCcenter 2000 system control board unprogrammed
See 501-1671.
501-2412 SPARCserver 1000 system control board unprogrammed
See 501-1979.
END OF PART IV OF THE SUN HARDWARE REFERENCE