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20 ASUS P3V133 User’s Manual
3. HARDWARE SETUP
System Memory
3. H/W SETUP
3.5 System Memory (DIMM)
This motherboard uses only Dual Inline Memory Modules (DIMMs). Three sockets
are available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random
Access Memory (SDRAM) of either 8, 16, 32, 64, 128, 256, or 512MB to form a
memory size between 8MB to 1.5GB. One side (with memory chips) of the DIMM
takes up one row on the motherboard. This motherboard also supports NEC’s Virtual
Channel (VC) SDRAMs.
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).
Memory speed setup is recommended through SDRAM Configuration in 4.4.1
Chip Configuration.
IMPORTANT (see General DIMM Notes below for more)
• SDRAMs used must be compatible with the current Intel PC133 SDRAM
specification.
• DO NOT attempt to mix SDRAMs with VC SDRAMs.
Install memory in any combination as follows:
DIMM Location 168-pin DIMM Total Memory
Socket 1 (Rows 0&1) SDRAM 8, 16, 32, 64, 128, 256, 512MB x1
Socket 2 (Rows 2&3) SDRAM 8, 16, 32, 64, 128, 256, 512MB x1
Socket 3 (Rows 4&5) SDRAM 8, 16, 32, 64, 128, 256, 512MB x1
Total System Memory (Max 1.5GB) =
NOTES
• DIMMs that have more than 18 chips are not supported on this motherboard.
• For the system CPU bus to operate 100MHz, use only PC100-compliant DIMMs.
• 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 (Extended
Data Output) chips.
• BIOS shows SDRAM memory on bootup screen.
• Single-sided DIMMs come in 16, 32, 64, 128, or 256MB; double-sided come in 32,
64, 128, 256, or 512MB.