DataExpert ATX431, Руководство пользователя

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Chapter 2: Installation
System Memory (SIMM & DIMM)
This motherboard supports four 72-pin, 32-bit SIMMs (Single Inline Memory Modules) of
4, 8, 16, 32, or 64 MB to form a memory size between 8MB and 256MB. The SIMMs can
be either 60ns or 70ns Fast Page Mode (FPM) (Asymmetric or Symmetric), or Enhanced
Data Out (EDO) (BEDO & Parity are not supported). SIMMs must be installed in pairs so
that each Row (see Map of Motherboard for Row locations) contains 64-bits of the same
size and type of memory chips. One side (with memory chips) of the SIMM module takes
up half a Row on the motherboard.
Dual Inline Memory Modules (DIMM’s) can be used when the SIMM sockets are not used.
Two sockets are available for 3.3 Volt (power level) Unbuffered Synchronous DRAMs
(SDRAM) or EDO DRAM of either 8, 16, 32, 64, or 128MB to form a memory size
between 8MB to 256MB. One side (with memory chips) of the DIMM module takes up
one Row on the motherboard.
IMPORTANT: Memory speed is set up through “DRAM Configuration” in BIOS Chipset
Setup of the BIOS SOFTWARE. If both 60ns and 70ns memory are used, set “DRAM
Configuration” to 70ns. Do not used memory modules with more than 24 chips per
module. Modules with more than 24 chips exceed the design specifications of the memory
subsystem and will be unstable.
2.2 Possible Memory Configurations