Owner's manual

upgrade Guide
Configuring System Memory
If you want to add system memory, you should use the configu
ration options and specifications shown in this section.
Memory Combinations
You can configure the system memory in a variety of ways, us
ing different combinations of SIMM modules. Using the 4 SIMM
sockets there are many configuration options.
Please note:
• Modules must be installed in pairs, in sequence, i.e. SIMM 1
& 2, SIMM 3 & 4, or all four sockets. The exception is you can
install one single-sided >2MB module in the SIMM 1 socket.
• Modules pairs must be the same size.
• Required Specifications:
Module Size:
Single-sided SIMMS: 1MB, 4MB, 16MB, 64MB
Double-sided SIMMS: 2MB, SMB, 32MB, 128MB
»
DRAM Type: Fast Page Mode, Asymmetric or Extended Data
Output
DRAM Speed: 70ns or faster for 50, 60 or 66MHz external
clock, EDO DRAM requires 60ns or faster for a 66MHz exter-^
nal clock setting.
RAS access time [Trac]: 60ns - 70ns
CAS access time [Tcac]: 10ns - 25ns
Parity: Either parity or non-parity
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