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ASUS A7M266 User’s Manual
3. HARDWARE SETUP
3. H/W SETUP
System Memory
3.5.2 Memory Installation
WARNING! Make sure that you 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. Because the number of pins are different on either
side of the breaks, the module will only fit in the orientation shown. A 184-pin DDR
SDRAM DIMM has a single notch slightly to the right of center.
A7M266 184-Pin DDR DIMM Sockets
01
01
A7M266
®
This motherboard supports three pairs of differential clock signals per DIMM.
3.5.1 General DIMM Notes
• DIMMs that have more than 18 chips are not supported on this motherboard.
• For the system CPU bus to operate at 200MHz/266MHz, use only PC1600-/
PC2100-compliant DIMMs.
• ASUS motherboards support SPD (Serial Presence Detect) DIMMs. This is the
memory of choice for best performance vs. stability.
• BIOS shows SDRAM memory on bootup screen.
• Single-sided DDR DIMMs come in 64, 128, and 256MB; double-sided come in
128, 256, and 512MB.
WARNING! Be sure that the DIMMs you use can handle the specified DDR
SDRAM MHz or else bootup will not be possible.