1.
Turn off the power switch, and disconnect the AC
power cable from the power supply.
2.
Disconnect all cables (including data and power
leads) connected to add-on cards after labeling them for easy reconnection.
3.
Disconnect all ribbon cables attached to
built-in ports on the mother- board (I/O, storage, and so on) after labeling
them for easy reconnection.
4.
Disconnect all cables leading to internal
speakers, key locks, speed switches, and other front-panel cables. Most recent
systems use clearly marked cables, but if the cables are not marked, mark them
before you disconnect them so that you can easily reconnect them later.
The image above shows the front –panel cables
attached to a typical motherboard. The cables control system power to the
motherboard, case speakers, drive and power lights.
5.
Remove all add-on cards and place them on an
antistatic mat or in (not on top of) antistatic bags.
6.
Disconnect header cables from front- or
rear-mounted ports and remove them from the system
7.
Disconnect the power-supply leads from the
motherboard. If the new motherboard uses different power supply connections
than the old motherboard, replace the power supply.
8.
If possible, remove the heat sink and the
processor before you remove the motherboard, and place them on an antistatic
mat. Removing these items before you remove the motherboard helps prevent
excessive flexing of the motherboard and makes it easier to slip the
motherboard out of the case. However, skip this step if removing the heat sink
requires a lot of downward pressure and if the motherboard is not well
supported around the heat sink/processor area or the heat sink is attached to a
metal plate on the bottom of the motherboard, as is common with many high-
performance third-party heat sinks.
The image above a shows a typical dual-USB
2.0 port header cable that uses an expansion slot bracket.
9.
Remove the motherboard mounting screws and store
for reuse; verify that all screws have been removed.
10 Remove
the motherboard out of the case and place it on an antistatic mat. Remove the
I/O shield (the metal plate on the rear of the system that has cutouts for the
built-in ports; and store it with the old motherboard.
Reference: Mueller,S.,Prowse,D.,Soper,M. (September 2012). CompTIA A+ 220-801 and 220-802 Authorized Cert Guide (3rd ed.) Retrieved from http://ptgmedia.pearsoncmg.
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