Install Memory Modules - Intel YM430TX User Manual

2. Install Memory Modules

This motherboard supports four 72-pin, 32-bit single inline memory modules
(SIMMs) of 4, 8, 16, 32, or 64 MB each, to form a memory size between 8 and 256
MB. The SIMMs can be either 60ns or 70ns, asymmetric or symmetric, fast page
mode (FPM) or enhanced data out (EDO) memory. (BEDO & parity are not sup-
ported). SIMMs must be installed in pairs so that each row contains 64 bits of the
same size and type of chips. One side of the SIMM module (with chips) takes up
half a row on the motherboard. (Refer to the motherboard layout on page 6 .)
Dual inline memory modules (DIMMs) can be used when SIMMs are not used.
Two sockets are available for 3.3-volt power level, unbuffered synchronous DRAMs
(SDRAMs) or EDO DRAMs of either 8, 16, 32, 64, or 128 MB each to form a
memory size between 8 and 256 MB. One side of the DIMM module (with chips)
takes up one row on the motherboard.
IMPORTANT: You must set up memory speed through "Auto Configuration" in
the BIOS Chipset Setup of the BIOS software. If both 60ns and 70ns memory are
used, set "Auto Configuration" to 70ns. Do not use memory modules with more than
24 chips per module. Modules with more than 24 chips exceed the design specifica-
tions of the memory subsystem and will be unstable.
Memory Socket
SIMM Sockets 1&2
(Rows 0 & 1)
SIMM Sockets 3&4
(Rows 2 & 3)
WARNING! Do not install both SIMMs and DIMMs at the same time or you will
burn your memory. To mix SIMMs and DIMMs, you must use 5.0-volt-tolerant
(signal level) memory chips, which are currently unavailable.
Memory Socket
DIMM Socket 1
(Rows 0 & 1)
DIMM Socket 2
(Rows 2 & 3)
18
SIMM Memory Module
4MB, 8MB, 16MB, 32MB, 64MB
72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
4MB, 8MB, 16MB, 32MB, 64MB
72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
Total System Memory (Max 256 MB)
DIMM Memory Module
8MB, 16MB, 32MB, 64MB, 128MB
168-pin SDRAM or EDO DIMM
(SIMM Sockets must be empty)
8MB, 16MB, 32MB, 64MB, 128MB
168-pin SDRAM or EDO DIMM
(SIMM Sockets must be empty)
Total System Memory (Max 256MB)
Intel YM430TX User's Manual
Total Memory
x2
x2
=
Total Memory
x1
x1
=