Asus TXP4 TXP4 User Manual - Page 19

System Memory SIMM & DIMM

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III. INSTALLATION (System Memory) III. INSTALLATION 2. System Memory (SIMM & DIMM) This motherboard supports four 72-pin, 32-bit SIMMs (Single Inline Memory Modules) of 4, 8, 16, 32, or 64MB to form a memory size between 8MB to 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 motherboard layout 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 (DIMMs) can be used when the SIMM sockets are not used. Two sockets are available for 3.3Volt (power level) Unbuffered Synchronous DRAMs (SDRAM) or EDO DRAM of either 8, 16, 32, 64, 128, 256MB 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 setup is required through "Auto Configuration" in 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 18 chips per module. Modules with more than 18 chips exceed the design specifications of the memory subsystem and will be unstable. Memory Socket SIMM Sockets 1&2 (Rows 0 & 1) SIMM Sockets 3&4 (Rows 2 & 3) 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 Memory x2 x2 Total System Memory (Max 256MB) = WARNING! Do not install both SIMMs and DIMMs at the same time or else you will burn your memory. Mixing SIMMs and DIMMs require 5.0Volt (signal level) tolerant memory chips which are currently unavailable. Memory Socket DIMM Socket 1 (Rows 0 & 1) DIMM Socket 2 (Rows 2 & 3) DIMM Memory Module 8, 16, 32, 64, 128, 256MB 168-pin SDRAM or EDO DIMM (SIMM Sockets must be empty) 8, 16, 32, 64, 128, 256MB 168-pin SDRAM or EDO DIMM (SIMM Sockets must be empty) Total System Memory (Max 256MB) Total Memory x1 x1 = ASUS TXP4 User's Manual 19

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ASUS TXP4 User’s Manual
19
III. INSTALLATION
(System Memory)
III.
INSTALLATION
2.
System Memory (SIMM & DIMM)
This motherboard supports four 72-pin, 32-bit SIMMs (Single Inline Memory Mod-
ules) of 4, 8, 16, 32, or 64MB to form a memory size between 8MB to 256MB.
The
SIMMs can be either 60ns or 70ns Fast Page Mode (FPM) (Asymmetric or Sym-
metric), or Enhanced Data Out (EDO) (BEDO & Parity are not supported).
SIMMs
must be installed in pairs so that each Row (see motherboard layout
for row loca-
tions) 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 (DIMMs) can be used when the SIMM sockets are
not used.
Two sockets are available for
3.3Volt
(power level) Unbuffered Synchro-
nous DRAMs (SDRAM) or EDO DRAM of either 8, 16, 32, 64, 128, 256MB 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 setup is required through “Auto Configuration” in
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
18 chips per module.
Modules with more than 18 chips exceed the design specifica-
tions of the memory subsystem and will be unstable.
Memory Socket
SIMM Memory Module
Total Memory
SIMM Sockets 1&2
4MB, 8MB, 16MB, 32MB, 64MB
x2
(Rows 0 & 1)
72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
SIMM Sockets 3&4
4MB, 8MB, 16MB, 32MB, 64MB
x2
(Rows 2 & 3)
72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
Total System Memory (Max 256MB)
=
WARNING!
Do not install both SIMMs and DIMMs at the same time or else you
will burn your memory.
Mixing SIMMs and DIMMs require 5.0Volt (signal level)
tolerant memory chips which are currently unavailable.
Memory Socket
DIMM Memory Module
Total Memory
DIMM Socket 1
8, 16, 32, 64, 128, 256MB
x1
(Rows 0 & 1)
168-pin SDRAM or EDO DIMM
(SIMM Sockets must be empty)
DIMM Socket 2
8, 16, 32, 64, 128, 256MB
x1
(Rows 2 & 3)
168-pin SDRAM or EDO DIMM
(SIMM Sockets must be empty)
Total System Memory (Max 256MB)
=