Originally Posted by
foxrena
Yes, you can remove soldered IHS. Just follow the procedure and be very careful.
Materials you need:
Some very thin blades (as shown in the pictures), a torch/lighter, cardboard.
1. use blades to cut into the rubber seal between the IHS and PCB, starts from corners and slowly work around the chip until everywhere is cut through. Be careful don't force it as there are surface-mount component on the PCB under IHS.
2. Insert four blades into the four sides between IHS and PCB, they will exert force to crack open the IHS in the 4th step.
3. Use a thick plastic/card board and cut open an area about the same size of the CPU and place the CPU at the opening, IHS facing down. Use tape to secure the CPU on the card board. If possible, place something (as heatsink) on the pin side of CPU to help dissipate extra heat. That help to prevent melting the solder on the pin side. Don't light up the cardboard.
4. Use a torch/light to heat the IHS from bottom. For about 45-60 seconds the solder melts and the blades will pop the IHS off.
5. Use blade carefully scratch off the soft solder on the die and clean the PCB. Don't polish die with sand paper (although I did).
Now you have a naked die for some fun. Core temp should be lowered by 5-10C. Be sure to test the temp before removing IHS for comparison. For the IHS you can drill a hole and make it a nice geek key chain gadget.