Rank: Administration
Groups: Administrators
Joined: 1/24/2010(UTC)
Posts: 18
Location: Antelope, CA.
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Tools needed: Flat blade screw driver (Maybe). CPU thermal compound, if the new heatsink and fan do not come with a thermal pad or compound. If the CPU heatsink has a thermal pad DO NOT apply the thermal compound, the pad there in place of the thermal compound. If you prefer to use thermal compound, remove the pad.
1. CPU's require an active heatsink, a chunk of finned heat-conductive metal with a cooling an mounted on top. The leading cause of CPU failure is fan failure, since the CPU can overheat and sustain damage if there's not enough cooling air flowing over the fins. The only rule of thumb for removing heatsinks is to study the latching mechanism. Remove the old CPU heatsink, most of them latch on with one side longer than the other. Use the long side to unlatch the retaining clip. Some have a spot to apply pressure and move the lever, others have a small slot to insert a flat blade screwdriver. Be careful to not push the clip down too far and scratch the motherboard. Also be careful not to break the plastic retaining tabs on the socket. The old thermal paste or pad between the old heatsink and the CPU can act like a glue, you could warm up the computer first and and try again, it may loosen it a bit.
2. With the old heatsink off, clean up the top of the CPU and surrounding area. I used a paper towel and some rubbing alcohol.
3. Add a SMALL amount of thermal compound (If no pad is on the heatsink). Too much is BAD! A BB size is plenty. It is used to fill the micro sized gaps between the CPU and the heatsink.
4. There is a ridge on the heatsink that goes between the CPU and the exposed part of the CPU socket.
5. To install the heatsink, clip on the short side, and then clip on the longer side. Be careful not scrape the motherboard.
6. Plug in the power. The old heatsink used a 4 pin molex that connected to the power supply. The new one here has a 3 pin connector that I can plug into the board. Apply power and make sure the fan is working before re-installing the CPU Box.
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