Memory Installation - Asus A7A266 User Manual

3. HARDWARE SETUP

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:
1 0 1 0
A7A266
A7A266 184-Pin DDR DIMM Sockets
The 168-pin DIMM must be a 3.3V unbuffered SDR SDRAM. Look for two notches
on each SDR DIMM:
1 0 1 0
A7A266
A7A266 168-Pin SDR DIMM Sockets
168-Pin DIMM Notch Key Definitions (3.3V)
DRAM Key Position
RFU
Buffered
26
Voltage Key Position
Unbuffered
5.0V
ASUS A7A266 User's Manual
104 Pins
80 Pins
88 Pins
60 Pins
20 Pins
Reserved
3.3V
Lock