Sun Microsystems SunSwift SPARCserver 1000, Installation Manual

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A-4 SPARCserver 1000 System Installation Manual—June 1996
A
If video is required, install the CGSIX SBus card in slot 1 (first available) on the
system board installed in slot 0.
The example in Table A-2 shows how to distribute five FSBE/S and two SPIFFs
on three system boards.
A.1.4 SIMMs
The SPARCserver 1000 system has three SIMM options. Two types of DRAM,
high-density and low-density, are available as well as nonvolatile NVSIMM.
The 8 Mbyte (low-density) SIMM uses 1 Mbit by 4 bit DRAMs. Two vendors
are used, so a slight variation exists in physical appearance between the two
products. See Figure A-3.
The 32 Mbyte (high-density) SIMM uses 4 Mbit by 4 bit DRAMs. Each vendor
uses the same printed circuit card for both the 8- and 32 Mbyte SIMMs, so no
major difference in appearance exist between a given vendor’s high- and low-
density SIMMs.
Only one type of 1 Mbyte NVSIMM exists, which uses 128 Kbit by 8 bit
DRAMs. See Figure A-3.
Table A-2 Example of SBus Card Distribution
System Board Location SBus Cards Installed
Slot 0 2 FSBE/S and 1 SPIFF
Slot 1 2 FSBE/S and 1 SPIFF
Slot 2 1 FSBE/S