14 P/E-P55T2P4D User’s Manual
III. INSTALLATION
2. System Memory (DRAM & SRAM)
This motherboard supports eight 72-pin SIMMs of 4MB, 8MB, 16MB, 32MB, or
64MB to form a memory size between 8MB to 512MB. The DRAM can be either
60ns or 70ns Fast Page Mode (Asymmetric or Symmetric) or EDO. To support
ECC, you must use true (opposed to phantom parity generated by logic chips) 36-bit
parity-type DRAM (e.g. 8 chips + 4 parity chips) in pairs for all modules. Mixing
32-bit non-parity DRAM (e.g. 8 chips) and 36-bit DRAM (e.g. 12 chips) will work
minus the ECC feature.
IMPORTANT: Each bank must have the same size memory installed in pairs.
IMPORTANT: Memory setup is required in BIOS Chipset Setup "Auto Con-
figuration" on page 36.
IMPORTANT: Do not use 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 cause unreliable operation.
Install memory in any or all of the banks in any combination as follows:
Memory Bank Memory Module Total Memory
Bank 0 4MB, 8MB, 16MB, 32MB, 64MB x2
SIMM Slots 1&2 72-pin FPM or EDO SIMM
Bank 1 4MB, 8MB, 16MB, 32MB, 64MB x2
SIMM Slots 3&4 72-pin FPM or EDO SIMM
Bank 2 4MB, 8MB, 16MB, 32MB, 64MB x2
SIMM Slots 5&6 72-pin FPM or EDO SIMM
Bank 3 4MB, 8MB, 16MB, 32MB, 64MB x2
SIMM Slots 7&8 72-pin FPM or EDO SIMM
Total System Memory =
(External Cache)
III. INSTALLATION