Lapping Q6600

[Alik4041]

Just ordered Yate Loon DSH-12, TRUE, and some MX-2. Should have some good temperatures. Right now I'm using some crappy zalman white thermal paste. Also purchased some isopropyl 91%. Finally some 3m wetordry from a local auto store - 220,400,800,1000,2000 grit for $8.50

[it_burns_when_i_pee]

Just ordered Yate Loon DSH-12, TRUE, and some MX-2. Should have some good temperatures. Right now I'm using some crappy zalman white thermal paste. Also purchased some isopropyl 91%. Finally some 3m wetordry from a local auto store - 220,400,800,1000,2000 grit for $8.50

just lap it with the 2000. i did after reading a couple of guides.

many say you need to use more course stuff first - you dont. think about it, after sanding away for some time, you'll be switching to 2000 paper to smooth a surface several layers deep

and considering your getting the TRUE you will no doubt have concerns about mounting pressure, so the last thing you want to do is shave several layers off your CPU.

im still in 2 minds at which is the best technique for lapping though. there's straight, circular or figure or 8. i did circular but see advantages to all, and the disadvantages to each arent a concern aslong as you clean it regularly.

[Alik4041]

Lapped my cpu and 9500 to 2000grit yesterday and temps went up 3C. Then used AS5 and went back to normal.

[annaconda]

Lapped my cpu and 9500 to 2000grit yesterday and temps went up 3C. Then used AS5 and went back to normal.

You make sure do the light test on both CPU and HS to make sure contact is proper.

[Alik4041]

You make sure do the light test on both CPU and HS to make sure contact is proper.

Thanks for the advice. It would make sense if contact is not being made properly because after as5, temps went down. I'll wait until I receive my TRUE. Should be comming soon from Petra's.

[Clint]

I have a E4400 that I have removed the IHS from, really wanna try lapping the core a little bit.

The core is really concave and has a minimal contact surface, so I think the gain would be substancial.

Anyone seen this been done, and how thick is the protectionsurface on the core?

[cstr]

There is so much folklore surrounding this topic. Of course it helps to improve surface contact between a heatsink and a processor or IHS. The reason one might use course paper and graduate to finer grit little by little is simple -- it saves time. There is no reason to use a course grit unless there are significant irregularities in the surface.

Do NOT use acetone on any electronics. There is a good chance you will dissolve something dear to a circuit Isopropanol from the drug store is fine. (180 proof vodka (which is ethanol) will also work.) There are a number of aerosol and non-areosol electronic cleaners around as well. They used to be primarily freon-based, but are now environmentally friendly. Their biggest advantage over isopropanol is ease of application and getting into tight spots.

One more thing -- lighting incense always helps!

[Alik4041]

Welcome to XS
I'm still confused about my temperatures.