The ASUS P5ND is an older motherboard that supports DDR2 (double data rate, or dual channel) memory. Installing DDR2 memory to the motherboard so that it utilizes it in dual channel / SLI mode (allowing the computer to write to two memory chips concurrently) is a fairly simple procedure, requiring only that you install the memory chips into the correct ports on the motherboard.
Instructions
1. Shut down the computer. Unplug it from the wall.
2. Remove the screws at the back of the case and remove the side panel by sliding the panel slightly backward and pulling it away from the case.
3. Insert the DDR2 memory into the yellow and black memory ports at the top half of the board. Insert both chips into the slots of the same color (i.e., both in the yellow slots or both chips in the black slots) to enable dual channel mode. The number of RAM chips can range from two to four individual memory units, depending on the amount of RAM on your computer.
4. Press down until the RAM "clicks" into place, and move the retaining notches on either side of the slot into position (firmly secured against the body of the RAM module) to secure the chips.
5. Close up the computer and restart it. The startup message as the computer boots will read "dual channel mode."
Tags: dual channel, channel mode, dual channel mode, both chips, chips into, DDR2 memory