Memory System

.3 SETUP H/W

3.HARDWARE SETUP

3.5System Memory (DIMM)

NOTE: No hardware or BIOS setup is required after adding or removing memory.

This motherboard uses only Dual Inline Memory Modules (DIMMs). Sockets are available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Access Memory (SDRAM) of 16, 32, 64, 128MB, or 256MB (512MB maximum system memory using 128Mbit technology).

This chipset does not support ECC. However, ECC memory modules may still be used, but the ECC function will not be available.

Memory speed setup is recommended through SDRAM Configuration in 4.4.1 Chip Configuration.

Install memory in any combination as follows:

Location

168-pin DIMM SDRAM

 

Total Memory

DIMM1

Single-Sided

 

 

(Rows 0&1)

Double-Sided

x1

 

 

 

 

 

DIMM2

Single-Sided (must be occupied before DIMM3)

 

 

(Rows 2&3)

Double-Sided (DIMM3 must be empty)

x1

 

 

 

 

 

DIMM3

Single-Sided (DIMM2 must be single-sided)

 

 

(Rows 3&2)

(Double-Sided DIMM cannot be used here!)

x1

 

 

(must be same or half DIMM2 memory size)

 

 

 

 

 

 

 

Total System Memory (Max 512MB)

=

 

 

 

 

 

NOTE: At the time this User’s Manual was written, 256MB DIMMs are only available as Double-Sided registered memory. Using 2x2x2 SDRAM can greatly improve the onboard graphics’ performance.

3.5.1 General DIMM Notes

•When this motherboard operates at 100MHz, PC100-compliant modules must be used because of the strict timing issues involved under this speed.

•ASUS motherboards support SPD (Serial Presence Detect) DIMMs. This is the memory of choice for best performance vs. stability.

•SDRAM chips are generally thinner with higher pin density than EDO (Ex- tended Data Output) chips.

•BIOS shows SDRAM memory on bootup screen.

•Single-sided DIMMs come in 16, 32, 64,128MB; double-sided come in 32, 64, 128, 256MB.

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ASUS CUW-RM User’s Manual