Asus A7A266-E - Manual (Page 23)

ASUS A7A266-E User’s Manual 23
3. HARDWARE SETUP
System Memory 3. H/W SETUP
3.5.2 SDR DIMM Support
The three SDR DIMM sockets support 3.3Volt (power level) unbuffered Single Data
Rate Synchronous Dynamic Random Access Memory (SDR SDRAM) of 64MB,
128MB, 256MB, 512MB, and 1GB to form a memory size between 64MB to 3GB.
One side (with memory chips) of the DIMM takes up one row on the motherboard.
SDR DIMMs supports non-ECC (used in desktops/laptops) and are available in
unbuffered (typically used in PCs) versions.
Install memory in any combination as follows:
DIMM Location 168-pin SDR DIMM Total Memory
Socket 1 (Rows 0&1) 64MB, 128MB, 256MB, 512MB, 1GB x1
Socket 2 (Rows 2&3) 64MB, 128MB, 256MB, 512MB, 1GB x1
Socket 3 (Rows 4&5) 64MB, 128MB, 256MB, 512MB, 1GB x1
Total System Memory (Max 3GB) =
0 1 0 1
A7A266-E
A7A266-E 168-Pin DIMM Sockets Lock
20 Pins
60 Pins
88 Pins
The 168-pin DIMM must be a 3.3V unbuffered SDR SDRAM. Look for two notches
on each SDR DIMM:
168-Pin DIMM Notch Key Definitions (3.3V)
DRAM Key Position Voltage Key Position
Unbuffered RFU
Buffered
Reserved
3.3V
5.0V