Lapping AC7 & Q6600

JoeDredd · 24 Feb 2008 at 17:38

HI all

Some of you may know that I have had problems with my temps (idle45-47, load 50-52). So I removed my HSF & CPU to check for levels and both of them have high ridges using the stanley blade method.

Can anyone give me any ideas/ advice on how to lap both of these items, and how much cooler will my system run after lapping???

Chris Beard · 25 Feb 2008 at 14:02

Some good videos on youtube on lapping. (but don't go waxing or using other buffing agent on your chip or cooler - that's just crazy).

Improvements from lapping range from 1C to 10Cs in my reading. Only way to know is to try.

Generally though if the chip and sink are flat then little improvement if they're both convex or both converse then high improvement.

Stonedofmoo · 25 Feb 2008 at 14:55

Consider yourself lucky, I get almost 90 degrees with my new Q6600 at 3.6gig and an AC7 Pro

My lapping kit is in the post...

domyboy · 25 Feb 2008 at 21:45

haha, my temps are high too, where did you get your lapping kit stonedofmoo?

Stonedofmoo · 25 Feb 2008 at 22:15

A well known online auction site

V3g3tto · 25 Feb 2008 at 22:24

11C difference between cores, i win

domyboy · 25 Feb 2008 at 23:01

dr. sarf · 25 Feb 2008 at 23:56

Stonedofmoo said:
Consider yourself lucky, I get almost 90 degrees with my new Q6600 at 3.6gig and an AC7 Pro

My lapping kit is in the post...

Crikes! Same setup here - 72'C under Prime.

V3g3tto · 26 Feb 2008 at 00:22

domyboy said:
11c

Though my hottest core hits 58C at full load @ 3.4ghz. Yep, it's a dam mystery, just a funky chip.

Stonedofmoo · 26 Feb 2008 at 20:25

Well I lapped my CPU and AC7 Pro and now get 80 degrees at 3.4 under Prime95. A 10 degree improvement but a long way from acceptable.

It looks like I have no choice but to upgrade a a Thermalright 120 extreeme, the expense

JoeDredd · 27 Feb 2008 at 10:09

Crikey I didnt realise that so many people are having the same problem as me :eek:

I havent even tried to OC my quad yet, due to the high temps !!! it will be interesting what we are all going to do.
I will hold back on lapping my CPU as I have only had it for 6 weeks and dont really want to void warranty, not until I have tried other avenues first.

Stoned I am interested in your lapped AC7 so I can compare temps, and also can be used on my sons first build comp, let me know.

Trouble is what HSF to go for !!! TT, TRUE or Silent Knight II :confused:

Which one will fit best on my MB?? as TT & TRUE are massive in comparison to AC7

GingerNinja1989 · 27 Feb 2008 at 15:35

The AC7 seems to be notoriously un-flat (if that's the word), although I'm having no probs with mine on a 3GHz Conroe