Recently I had the opportunity to write the following to help a member.
Heat sink procedure for Socket A (462) processors.
Before you attempt this operation make sure you have a good thermal compound. Arctic Silver 5 should be available from local computer component suppliers. Read all of below first.
1. Disconnect the CPU fan connector.
2. A medium sized flat bladed screw driver is needed to insert into the clip nearest the motherboard edge. Insert on the inner side of the small lug provided in the centre of the clip and push down enough to release the tension and the move the screw driver so that the bottom of the clip moves outward and clears the plastic retaining lug. This should release the heatsink. BE CAREFUL NOT TO LET THE SCREW DRIVER SLIP DOWN AND DAMAGE THE MOTHERBOARD.
3. Remove the heatsink and put to one side. Now carefully lift the chrome lever that secures the CPU in the socket to the vertical position. Careful ensure the CPU is seated correctly by pushing on all rubber pads of the CPU. If satisfactory push the securing lever back down to its original position.
4. Take up the heat sink and clean off any compound on the lower surface. Do not scratch. Use a wood scrapper to take the bulk off and then use a lint free rag moistened with methylated spirits to completely clean the surface.
5. Clean CPU metal area finishing with spirits as in step 4 above. Try to make sure that compound is not adjacent to or linking any of the small components you see on the CPU. Be very careful. Do not use acetone.
6. Now carefully check that the heatsink will fit correctly without the spring clip engaged. It is a good idea to practice placing the heatsink vertically on to the processor in preparation for step 8.
If all looks well withdraw the heatsink and place a small quantity of Arctic silver where you can most likely see the processor has made contact on the underside. Now rub the compound into the heatsink pores and the wipe off carefully.
7. Place a small quantity of compound on the CPU metal surface and spread a thin even coat across the entire surface. Use a blade of some sort, even a razor blade.
8. You are ready to re-assemble. Make sure that the smaller clip on the heatsink, the one you attach first, is pulled free on that side. Now the tricky bit is to lower the heatsink vertically so that you bring it down in the right place and hold it there whilst you engage the first clip. The idea is not to spread the compound too far and reduce the effective thermal connection. There must be no air pocket on the CPU body. With the first clip pushed securely under the plastic lug secure the final clip with the aid of the screw driver, pushing down and moving the clip inward and under the plastic lug. Make sure that each clip is well into the root of each plastic lug, if left on the outer edge the lugs do break off.
9. Remember to re-plug the fan.
Heat sink procedure for Socket A (462) processors.
Before you attempt this operation make sure you have a good thermal compound. Arctic Silver 5 should be available from local computer component suppliers. Read all of below first.
1. Disconnect the CPU fan connector.
2. A medium sized flat bladed screw driver is needed to insert into the clip nearest the motherboard edge. Insert on the inner side of the small lug provided in the centre of the clip and push down enough to release the tension and the move the screw driver so that the bottom of the clip moves outward and clears the plastic retaining lug. This should release the heatsink. BE CAREFUL NOT TO LET THE SCREW DRIVER SLIP DOWN AND DAMAGE THE MOTHERBOARD.
3. Remove the heatsink and put to one side. Now carefully lift the chrome lever that secures the CPU in the socket to the vertical position. Careful ensure the CPU is seated correctly by pushing on all rubber pads of the CPU. If satisfactory push the securing lever back down to its original position.
4. Take up the heat sink and clean off any compound on the lower surface. Do not scratch. Use a wood scrapper to take the bulk off and then use a lint free rag moistened with methylated spirits to completely clean the surface.
5. Clean CPU metal area finishing with spirits as in step 4 above. Try to make sure that compound is not adjacent to or linking any of the small components you see on the CPU. Be very careful. Do not use acetone.
6. Now carefully check that the heatsink will fit correctly without the spring clip engaged. It is a good idea to practice placing the heatsink vertically on to the processor in preparation for step 8.
If all looks well withdraw the heatsink and place a small quantity of Arctic silver where you can most likely see the processor has made contact on the underside. Now rub the compound into the heatsink pores and the wipe off carefully.
7. Place a small quantity of compound on the CPU metal surface and spread a thin even coat across the entire surface. Use a blade of some sort, even a razor blade.
8. You are ready to re-assemble. Make sure that the smaller clip on the heatsink, the one you attach first, is pulled free on that side. Now the tricky bit is to lower the heatsink vertically so that you bring it down in the right place and hold it there whilst you engage the first clip. The idea is not to spread the compound too far and reduce the effective thermal connection. There must be no air pocket on the CPU body. With the first clip pushed securely under the plastic lug secure the final clip with the aid of the screw driver, pushing down and moving the clip inward and under the plastic lug. Make sure that each clip is well into the root of each plastic lug, if left on the outer edge the lugs do break off.
9. Remember to re-plug the fan.
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