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ASUS A7A266 User’s Manual
3. HARDWARE SETUP
0101
A7A266
A7A266 184-Pin DDR DIMM Sockets
80 Pins
104 Pins
3.5.4 Memory Installation
WARNING! Unplug your power supply when adding or removing memory
modules or other system components. Failure to do so may cause severe damage
to both your motherboard and expansion cards (see 3.3 Hardware Setup
Procedure for more information).
Insert the module(s) as shown. Each type of module will only fit in the orientations
shown below:
The 184-pin DIMM must be a 2.5V unbuffered DDR SDRAM. Each DDR DIMM
has a single notch slightly to the right of center:
0101
A7A266
A7A266 168-Pin SDR DIMM Sockets
Lock
20 Pins
60 Pins
88 Pins
3. H/W SETUP
System Memory
168-Pin DIMM Notch Key Definitions (3.3V)
DRAM Key Position
Voltage Key Position
Unbuffered
RFU
Buffered
Reserved
3.3V
5.0V
The 168-pin DIMM must be a 3.3V unbuffered SDR SDRAM. Look for two notches
on each SDR DIMM: