Asus P2B98-XV - Manual (Page 16)

16 ASUS P2B98-XV User’s Manual
III. INSTALLATION
System Memory
III. INST
ALLA
TION
2. System Memory (DIMM)
Only Dual Inline Memory Modules (DIMMs) can be used with this motherboard.
Three sockets are available for 3.3Volt (power level) Unbuffered Synchronous
DRAMs (SDRAMs). One side (with memory chips) of the DIMM module 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 parity chip) and
make the proper settings in the BIOS Chipset Features Setup.
IMPORTANT (see General DIMM Notes below)
•
SDRAMs used must be compatible with the current Intel PC/100 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
Total System Memory (Max 768MB) =
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 timing
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.
ASUS Memory Example:
Non-ECC SDRAM DIMM (8 chips)
WARNING: Memory modules must have 18 chips or less. Memory modules
with more that 18 chips will cause unstable operation.