Asus P4SD User Guide - Page 8

Table 1 Recommended memory configurations Mode Single-channel Sockets DIMM1 DIMM2 (1) Installed - (2) - Installed (3) Installed Installed Table 2 Memory frequency/CPU FSB synchronization CPU FSB 800 MHz 533 MHz 400 MHz DDR DIMM Type PC3200/PC2700/PC2100 PC2700/PC2100 PC2100 Memory Frequency 400/333/266 MHz 333/266 MHz 266 MHz Installing a DIMM Make sure to unplug the power supply before adding or removing DIMMs or other system components. Failure to do so may cause severe damage to both the motherboard and the components. Follow these steps to install a DIMM. 1. Unlock a DIMM socket by pressing the retaining clips outward. DDR DIMM notch 2. Align a DIMM on the socket such that the notch on the DIMM matches the break on the socket. 3. Firmly insert the DIMM into the socket until the retaining clips snap back in place and the DIMM is properly seated. Unlocked Retaining Clip 4 ASUS P4SD-LA motherboard