ASRock M810LMR User Manual - Page 9

2.3 CPU Installation Step 1. Unlock the socket by lifting the lever up to a 90o angle. Step 2. Position the CPU directly above the socket such that its marked corner matches the base of the socket lever. Step 3. Carefully insert the CPU into the socket until it fits in place. The CPU fits only in one correct orientation. DO NOT force the CPU into the socket to avoid bending of the pins. Step 4. When the CPU is in place, press it firmly on the socket while you push down the socket lever to secure the CPU. The lever clicks on the side tab to indicate that it is locked. Step 1 Step 2, 3 Step 4 2.4 Installation of CPU Fan and Heatsink AMD AhtlonTM / AthlonTM XP / DuronTM family CPUs with a speed of 600 MHz and higher require larger heatsink and cooling fan. Thermal grease between the CPU and the heatsink is also needed to improve heat transfer. Make sure that the CPU and the heatsink are securely fastened and in good contact with each other. For proper installation, please kindly refer to the instruction manuals of vendors of CPU fan and heatsink. 2.5 Installation of Memory Modules (DIMM) M810LMR motherboard provides two 168-pin SDRAM DIMM slots. Please make sure to disconnect power supply before adding or removing DIMMs or the system components. Step 1. Step 2. Step 3. Unlock a DIMM slot by pressing the retaining clips outward. Align a DIMM on the slot such that the notch on the DIMM matches the break on the slot. Firmly insert the DIMM into the slot until the retaining clip snap back in place and the DIMM is properly seated. 9