Asus P/I-AP55T - Manual (Page 26)

P/I-AP55T User's Manual
Configuring System Memory
If you want to add system memory, you must use the configura­
tion 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.
The following chart shows the supported combinations.
The only restrictions are:
• You must use 2 sockets at a time, in sequence, i.e. SIMM 1
and SIMM 2, or all four sockets at once.
• Each pair of modules must be the same size and speed and
can be either single or double-sided.
• Memory Specifications:
Module Size:
Single-sided SIMMs: 4MB, 16MB
Double-sided SIMMs: 8MB, 32MB
DRAM Type: Fast Page Mode or Extended Data Output
DRAM Speed: 70ns or faster for 75MHz, 90MHz and 120MHz
Pentiiims (50 or 60MHz external clock); 60ns for lOOMHz and
133MHz Pentiums (66MHz external clock).
RAS access time [Trac]: 60ns - 70ns
CAS access time [Tcac]: 10ns - 25ns
Parity: Either parity or non-parity
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