Asus A7V266 Motherboard DIY Troubleshooting Guide - Page 26

3. H/W SETUP System Memory 3. HARDWARE SETUP 3.5.1 General DIMM Notes • DIMMs that have more than 18 chips are not supported on this motherboard. • 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 RAM MHz or else bootup will not be possible. 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 DRAM DIMM has a single notch slightly to the right of center. 01 01 01 104 Pins A7V266 80 Pins A7V266 184-Pin DDR DIMM Sockets This motherboard supports three pairs of differential clock signals per DIMM. 26 ASUS A7V266 User's Manual