American Megatrends Apollo IV User Manual page 24

Step 3 Configure CPU,
Install CPU Install the CPU in the ZIF (zero insertion force) socket by performing the
following steps. The CPU socket is near one edge of the motherboard.
Improper CPU installation can damage the CPU and the
motherboard. You must follow the procedures in this section exactly
as documented. Make sure you wear an antistatic wristband while
installing the CPU. Follow all antistatic procedures.
Step
1 Lift the lever on the ZIF socket. The empty CPU socket looks like
this.
2 Check for bent pins on the CPU. Gently straighten any bent pins
with pliers. Place the CPU in the middle of the socket. Make sure
that pin 1 of the CPU is aligned with pin 1 of the socket. Make sure
you are properly grounded while handling the CPU.
3 Complete installation by lifting the ZIF lever to the other side of the
socket, as shown below.
20 Apollo IV PCI Pentium ISA Motherboard User's Guide
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