Asus P2B98-XV P2B98-XV User Manual - Page 16

III. INSTALLATION 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) = WARNING: Memory modules must have 18 chips or less. Memory modules with more that 18 chips will cause unstable operation. ASUS Memory Example: III. INSTALLATION System Memory Non-ECC SDRAM DIMM (8 chips) 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. 16 ASUS P2B98-XV User's Manual