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Lapping

post #1 of 8
Thread Starter 
What exactly is lapping?
post #2 of 8
Quote:
Originally Posted by wire View Post
What exactly is lapping?
Lapping is when you use sandpaper and rub the CPU till the bronze appears. That makes the CPU both flat and reveals the bronze which both help it transfer more heat to the heatsink and thus cool it better.

Check this http://www.legitreviews.com/article/402/1/

The same can be done on any ihs (like the 8800 vga) and ofcourse on the bottom of the heatsink.
    
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post #3 of 8
Lapping is voiding your CPU's warranty for a couple of Cs less, not worth it IMO.

Best way is to lap your heat-sink/fan, no worries there, as most are willing to go that route.
post #4 of 8
And how many CPU's how you been able to warranty, there Nasgul?

Lapping the cpu typically makes the biggest difference in temps as the IHS on the cpu is not even close to flat. Most cooling blocks have been lapped to at least a 1200grit. Lapping my cpu droped idle temps by 7c and load temps by almost 11c...of course it was very concave before I started. Lapping my TDX water block only got me another 2c off my temps.

Quote:
Lapping is when you use sandpaper and rub the CPU till the bronze appears.
..almost. You have to use a sheet of glass or something very flat to lay the sandpaper on first, then secure it with some tape. You start with a rough grit like 600, and work your way up to 1200-1600grit once its flat.
post #5 of 8
Quote:
Originally Posted by CL3P20 View Post
And how many CPU's how you been able to warranty, there Nasgul?

Lapping the cpu typically makes the biggest difference in temps as the IHS on the cpu is not even close to flat. Most cooling blocks have been lapped to at least a 1200grit. Lapping my cpu droped idle temps by 7c and load temps by almost 11c...of course it was very concave before I started. Lapping my TDX water block only got me another 2c off my temps.

..almost. You have to use a sheet of glass or something very flat to lay the sandpaper on first, then secure it with some tape. You start with a rough grit like 600, and work your way up to 1200-1600grit once its flat.
Well I would never lap an E6600. I did not mind lapping my pentiumD since I have it almost a year. Even if the warranty is a dream at least is a good dream that keeps you happy and "safe"
    
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post #6 of 8
Lapping is a great way to decrease load temps, the common misconception is you are going to see this huge idle drop. Idle is hard to get down very far with air but now your load temps are where you are looking for the changes, better heat transfer means heat is dissipated faster keeping your load down and giving you extra oc ing room.
    
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post #7 of 8
lol, I lapped my e6700 when it was 1week old. I will be doing the Q6600 as soon as it arrives in the mail!!!
post #8 of 8
Well I seen 10C drop in idle and 22-25 full load. Right now I am at 46/56. Well as it seems I have added a lot of AS5 too, now I added less MX-1 but I think I still put a lil too much. I will reseat is sometime later.
    
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