Asus AP160R-S User Guide - Page 23

2.4 Installing system memory DIMM sockets location The motherboard has four Dual Inline Memory Module (DIMM) sockets that support up to 8GB system memory using registered ECC PC2100/PC1600 DDR DIMMs. DDR DIMM sockets Install a DIMM 1. Unlock a DIMM socket by pressing the retaining clips outward. 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 Unlocked Retaining Clip socket until the retaining clips snap back in place and the DIMM is properly seated. CAUTION A DDR DIMM is keyed with a notch so it fits in only one direction. DO NOT force a DIMM into a socket to avoid damaging the DIMM. Remove a DIMM 1. Simultaneously press the retaining clips outward to unlock the DIMM. 2. Remove the DIMM from the socket. ASUS AP160R-S 1U Rackmount Server 23