Asus P3C2000 P3C20000 User Manual - Page 24

3. H/W SETUP System Memory 3. HARDWARE SETUP 3.5 System 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 64, 128, 256, or 512MB with Serial Presence Detect (SPD). 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. IMPORTANT: 1. This motherboard's chipset only supports 64Mbit and 128Mbit SDRAMs (see SDRAM Configurations). 32Mx4 128 Mbit support is for registered DIMMs only. 4Mx16 64 Mbit support is for unbufferred DIMMs only. 2. If more than one socket will be populated with DIMMs, the first socket in the order must be populated with higher-sized DIMMs (in MB). For example, DIMM1 ≥ DIMM3 ≥ DIMM2 ≥ DIMM4. Total memory size (in MB), however, of DIMM2 and DIMM4 must not be greater than DIMM1 and DIMM3 (DIMM1 + DIMM3 ≥ DIMM2 + DIMM4). SDRAM Configurations Technology Configuration No. of Row No. of Col. Address Bits Address Bits 64Mbit 8Mx8 12 9 64Mbit 4Mx16 12 8 128Mbit 32Mx4 12 11 128Mbit 16Mx8 12 10 No. of Bank Page Address Bits Size 2 4KB 2 2KB 2 16KB 2 8KB 3.5.1 General DIMM Notes • This motherboard only supports SPD DIMMs. • SDRAM chips are generally thinner with higher pin density than EDO (Extended Data Output) chips. • BIOS shows SDRAM memory on bootup screen. • Single-sided DIMMs come in 32, 64,128MB; double-sided come in 64, 128, 256, 512MB. 24 ASUS P3C2000 User's Manual