The recommended first step when installing a Slot-based processor or Slocket adapter is to first attach the fan header(s) to the motherboard. This is safer than leaving the cord hanging loose, and can save time if the motherboard space is at a premium or when fan headers are very close to the Slot 1/A socket. The Slot 1/A interface is comprised of two gold-plated edges, each of differing sizes. Line the CPU edges up against the Slot 1/A socket and insert the processor. Press down firmly and the CPU should click into place. If not, remove the CPU and check that the edge alignment is correct and that no obstruction or cable is between the CPU and the slot. Then lock the Slot 1 retention mechanism into place.

After the CPU has been installed, attach the required external cables and perform a quick test boot. Watch for the displayed CPU speed and confirm that it matches the default rating for the processor. If not, then go over the motherboard settings once more to ensure that the proper jumpers have been selected. Also double-check that the CPU has been properly installed, especially with the more troublesome Slot-based models. During this test, also confirm that the CPU cooling fan starts up and that all fan wires are firmly connected. After the PC boots up properly, you can make any desired changes to the CPU speed, as well as adjustments to other hardware settings and options.

When a new CPU has been added to an existing system, or when booting a new system for the first time, the BIOS settings will likely restore to their default settings. This means that any specific adjustments you want to make to specific BIOS options will need to be performed at this time. Although the processor should default to its rated speed and voltage, many motherboards allow FSB and voltage tweaking from within the BIOS. As a safety precaution, confirm that the core voltage has been correctly detected by the BIOS. If required, please consult your motherboard manual for the exact procedure for increasing the CPU's core speed.