ASRock B75TM-ITX User Manual - Page 24

orientation key notch Pin1 alignment key orientation key notch 1155-Pin CPU alignment key 1155-Pin Socket Pin1 For proper installation, please ensure to match the two orientation key notches of the CPU with the two alignment keys of the socket. Step 2-3.Carefully place the CPU into the socket. Step 2-4.Verify that the CPU is within the socket and properly mated to the orient keys. Step 3. Close the socket: Step 3-1.Flip the load plate onto the IHS. Step 3-2.Press down the load lever, and secure it with the load plate tab under the retention tab. The protection cover will automatically come off by itself. Please save and replace the cover if the processor is removed. The cover must be placed if you wish to return the motherboard for after service. 24