Lapping Q6600

Shane

Shane

Super Moderator
Staff member
So ive thought about Lapping my Q6600 and my Asus Silent Knight 2 Cpu cooler! ,From what ive read, other people doing it on other forums,The results sometimes are as big as 10c drop in temps....

Anyone else Lapped a CPU in here?

I was thinking of buying the Lapping Kit,just so i have everything thats needed such as this...

http://www.chilledpc.co.uk/shop/product_info.php?products_id=122

And then buying some Shin-Estu thermal paste.

My cooler needs lapping,Its somehow got some scratches on the bottom which i know wont help temps so hopefully i can smooth them out and get a mirror finish.
 
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I hear that lapping cpu's you should use 250/500/1000/200- grit, in that order. but i;ve never done it lol.

if you do lap it make sure you do it a flat surface, like a piece of glass or something so it doesn't get lop sided.
 
Im to lazy to convert you cost on the kit, but it cost me about 17 bucks to lap my HS, i didn't bother with my cpu, cause i didnt know how long i would have it. But i lapped my stock amd HS(which is a good HS) and it decreased the load temp by 3c. The idle stayed the same, which i expected, but overall it was a fun project. Was it worth 17 bucks? probably not, but i had fun with it. i would only do it if you are wanting more overclocking be done.

But if you lap your HS and cpu right, and its cleanly done, you should be able to see at least a 5c drop in temps.

I forget my temps cause its been about 5 months but if i find them ill post them for you.

EDIT: Don't go under 400 grit to start. Anything under 400 would be to rough, and it would just make things harder, and it would take longer to finish the job.
 
linkin said:
I hear that lapping cpu's you should use 250/500/1000/200- grit, in that order. but i;ve never done it lol.

if you do lap it make sure you do it a flat surface, like a piece of glass or something so it doesn't get lop sided.
Click to expand...

Yeah ive read diffrent ways of doing it,But i found the complete lapping kit on that site above,it has the following...

Wet n Dry 400 Grit
Wet n Dry 800 Grit
Wet n Dry 1000 Grit
Wet n Dry 1500 Grit
Wet n Dry 2000 Grit
Wet n Dry 2500 Grit

And yes,I have a glass board i can use :)

400 Grit to start off with some be okay?..if not i can get 180 Grit and 320Grit from work.
 
Maybe do some googling and what to start with, i have no idea... i should get a new cooler soon... 22c ambient temp and 37c idle temps for cpu :s
 
Nevakonaza said:
Alright what im gona do is buy these...

http://www.chilledpc.co.uk/shop/product_info.php?products_id=122
Click to expand...

Those pieces of sandpaper are pretty small, just lapping my Q9450 i went through four sheets of 3000 grit, and three sheets of 2500 grit(this was large ~8x12 inch sheets to boot). You'll also want a nice flat hunk of glass to lap on(i use a glass cutting board personally). You can get sandpaper off ebay for relatively cheap, which will give you larger sizes than a kit like that. I also recommend having a nice razor blade or engineers straight edge as well, to check flatness. Personally, i lap with the following grits:

-320 Grit (Only if it is very concave or convex as checked by a straight edge or blade) (1-2 Sheets)
-400 Grit (1-2 Sheets)
-600 Grit (1 Sheet)
-800 Grit (1 Sheet)
-1000 Grit (1 Sheet)
-1500 Grit (2 Sheets)
-2000 Grit (2 Sheets if lapping to 2500/3000 grit, 3-5 sheets if lapping to 2000 grit)
-2500 Grit (3-4 Sheets)
-3000 Grit (3-4 Sheets)

Anything above 2000 grit is really more for the mirror finish than actual flatness, will help with removing thermal paste but wont help temps a whole lot more than 2000 grit.

I've dealt with this seller before and had good results:
10 Sheets any grit 80-2500:
http://cgi.ebay.com/10-Sheets-WET-D...ltDomain_0&hash=item255a132c2f#ht_1033wt_1165

25 Sheets pick any grit 80-2500:
http://cgi.ebay.com/25-Sheets-WET-D...ultDomain_0&hash=item255a4d8236#ht_857wt_1165

10 Sheets 3000 Grit:
http://cgi.ebay.com/10-Sheets-3000-...ultDomain_0&hash=item5191f37cea#ht_727wt_1165
 
I just saw your post about thinking of upgrading, so my advice is if you want to get some money back from your Q6600 by selling it (try eBay) don't lap! An unlapped Q6600 sells higher!
 
^ I doubt that from what i've seen. as long as you can prove that it's a Q6600 (like a CPU-Z screenshot or some pictures before/during/after lapping) then you're fine.
 
Domain_Man said:
I just saw your post about thinking of upgrading, so my advice is if you want to get some money back from your Q6600 by selling it (try eBay) don't lap! An unlapped Q6600 sells higher!
Click to expand...

Lapped processors generally sell for higher in private sales(forums, etc).

Also: ALWAYS ALWAYS ALWAYS ALWAYS ALWAYS take a picture AND write down all information on top of the cpu.
 
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Thanks guys

Probably in Forums...

I have experienced this on eBay myself having sold a lapped Q6600

I found that buyers dont want an obviously overclocked chip as there is the impression that it has been overused and will not last long, you'll find in processor listings on eBay that often sellers say 'never been overclocked'

So my advice is based on experience on eBay.. but since I have never sold anything on Computer Forums before then all I can say is take the advice of someone who knows best :)
 
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