INSTALLATION .III

Memory System

III.INSTALLATION

2.System Memory

Main Memory (DIMM)

This motherboard supports Dual Inline Memory Modules (DIMMs). Sockets are available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Access Memory (SDRAM). One side (with memory chips) of the DIMM takes up one row on the motherboard.

To utilize the chipset’s Error Checking and Correction (ECC) feature, you must use a DIMM module with 9 chips per side (standard 8 chips/side + 1 ECC chip) and make the proper settings through “Chipset Features Setup” in BIOS SOFTWARE.

Memory speed setup is recommended through SDRAM Configuration under “Chipset Features Setup”.

IMPORTANT (see General DIMM Notes below)

•SDRAMs used must be compatible with the current Intel PC100 SDRAM specification.

Install memory in any combination as follows:

DIMM Location

168-pin DIMM Memory Modules

 

Total Memory

 

 

 

 

Socket 1 (Rows 0&1)

SDRAM 8, 16, 32, 64, 128, 256MB

x1

 

 

 

 

 

Socket 2 (Rows 2&3)

SDRAM 8, 16, 32, 64, 128, 256MB

x1

 

 

 

 

 

Socket 3 (Rows 4&5)

SDRAM 8, 16, 32, 64, 128, 256MB

x1

 

 

 

 

 

Socket 4 (Rows 6&7)

SDRAM 8, 16, 32, 64, 128, 256MB

x1

 

 

 

 

 

 

Total System Memory (Max 1GB)

=

 

 

 

 

 

General DIMM Notes

•Use only PC100-compliant DIMMs. This motherboard operates at 100MHz, thus most systems will not even boot if non-compliant modules are used because of the strict tim- ing issues involved under this speed.

•Two possible memory chips are supported: SDRAM with and without ECC.

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

•BIOS shows SDRAM memory on bootup screen.

•8 chips/side modules do not support ECC, only 9 chips/side modules support ECC.

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

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ASUS P2B-D2 User’s Manual