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Step 2.
Unplug all power cords from electrical outlets.
Step 3.
Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to Locating connectors,
controls and components to locate the various connectors.
Step 4.
Remove the stand base. Refer to Removing the stand base.
Step 5.
Remove the rear cover. Refer to Removing the rear cover.
Step 6.
Remove the stand holder. Refer to Removing the stand holder.
Step 7.
Remove the middle cover. Refer to Removing the middle cover.
Step 8.
Remove the EMI cover. Refer to Removing the EMI cover.
Step 9.
Loosen the nine screws that secure the heat-sink to the motherboard, and then lift up the heat-sink
and remove it.
Attention: Place the heat-sink upside down on a flat surface to prevent thermal grease from contaminating
other components.
Attention: Use an alcohol pad to wipe the thermal grease off the CPU.
Step 10. To install the new heat-sink:
a.
Position the new heat-sink on the motherboard so that the nine screws are aligned with the
holes in the motherboard.
b.
Tighten the screws in numeric order to secure the new heat-sink to the motherboard.
Step 11. Reinstall all the removed parts, and then reconnect all the disconnected cables.
Replacing the system fan
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
.
Chapter 8
Replacing hardware
45
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