3.5 BIOS

		When using a ZIF socket, lift the handle 90 degrees, insert the CPU, and then return the handle back to its locked position.

		Install the Memory

		Main memory SIMM or DIMM Note pin 1 on the SIMM/DIMM and find the pin 1 mark on the motherboard. 72-pin SIMM/DIMM's are difficult to install wrong, but it is possible. Begin by placing the SIMM/DIMM at a 45 degree angle to the socket of bank 0, The SIMM will be angled toward the rest of the SIMM/DIMM sockets (and away from any SIMM/DIMM's previously installed), insert firmly into the socket, then rotate the SIMM/DIMM  until it sits perpendicular to the motherboard, and the two clips on each edge have snapped around the little circuit board. There may or may not be a "snap," but you should verify the two clips are holding the SIMM/DIMM fast, and that it doesn't jiggle in the socket. Repeat this until you fill one, two, or more banks, remembering that a bank consists of two 72-pin SIMM/DIMM

		Cache memory (if so equipped) Some older units may have L2 caches on the motherboard while newer processors include them within the processor module. Cache memory may be DIMM (dual in line memory module), or SIMM, in any case, install it now.

		3.10.2 The Case

		Open the case and remove all the internal drive bays, locate all the connectors: speaker, hard disk LED, power LED, reset switch, keyboard lock switch, mother board power, peripheral power, etc.

		Now mount the motherboard in the case.

		ATX style cases use only screws to mount the motherboard, and it is very straightforward.

		Plug in the keyboard to see if it fits.

		Plug in an adapter card and see if it fits.

		Start connecting the case cables to the motherboard now.

		Pull out floppy cables, hard disk cables, PS/2 mouse cable, and find jumper wires for your case's front panel switches and lights. Line up pin l's to the red side of cables.