HOW TO REMOVE i7 IHS

[corross]

Hi guys. Today, my 4th i7 920 arrived. So here’s the guide how to get the pants off this baby.

First this is what you need besides the CPU:

1.razorblades
2.adhesive tape
3.permanent marker
4.Lighter / gas soldering iron or anything like this
5.something to clean the HS after burning (acetone + hankies)

If you have everythig collected, the show can begin.

Step 1 – prepare 6 razorblades for use
-->use some of the tape to protect your fingers


-->mark one of the prepared blades with the waterproof pen as shown in the picture. The cutting depth is max. 4mm for the i7! If you cut deeper, you may damage some of the small ceramic caps.



Step 2 – Cutting
-->Take your marked razorblade and cut from the corners to the middle (each side two cuts from the right corner to the middle, then from the left corner to the middle = 8 cuts around the CPU)


-->now cut the rest like this (each side one cut = 4 cuts, all in all 12 cuts)



Step 3 – get ready to burn
-->We’ll make a little fire under the IHS, but nobody wants to roast the PCB. So do the following:


-->the melting pot (if you heat up the IHS, the solder melts and gravity will do the rest)


Step 4 – Melting the solder
I’ve done this with a simple gas lighter. Sometimes you need to shake a little bit as you can see in the video.
Videos say more than thousand pictures:
http://www.youtube.com/watch?v=YWTgS2ZuiJQ

After this, clean the Heatspreader using acetone

So heres the result, tested & works:

This is a photo of another i7, wich is currently running in my rig:


Carefully remove the tin with your razorblade.
Have fun with your naked i7 !

How the story continues: The custom-waterblock.

Copper 40x15x1000 vs. HS



What was your i7 Batch?




The copper met a milling machine, result: 29x38x12 + two holes

threaded (G1/4 inch thread)


I think you can imagine the leftover.
Performance:
- The water runs directly across the core now. CPUTemps are max. 30°C @ 4GHz full load, wich allows a nice 24/7 OC @ 4,4GHz; 1,39VCore (selected CPU, limited by the max. stable BCLK of my DFI LP UT mobo with HT&TurboMode on)

Regards from Germany,
Frank