Q6600 G0 lapping thread.

[w3bbo]

Yeah its fine stuff. You can buy lapping kits online or a good motor factors should also sell the fine paper (3M is best if you can get it).

I just hope its sorted the temps out now.

 

[Naj]

I have read the reviews, some say it works, some say it don't, others say it's not worth the effort. Well, today i drew my own conclusion...

I only lapped up my TT Big Typhoon heatsink. Not confident enough to try the IHS on my first attempt. Didn't even do a proper job of it to be honest, spent like 1hr30mins, i have a short attention span. Anyway, the results are very impresive:

Q6600 G0 3.1Ghz (345x9) 1.328 Vcore

Before lapping---Idle 42 40 38 39---Load 59 60 56 56
After Lapping ---Idle 32 34 28 33---Load 50 51 47 49

About 7-9'C drop on load temps, pretty good i'd say, could shave a few more degrees by lapping the IHS, one day.

 

[SteveOBHave]

I always found brasso to be the magic ingredient Nice Job!

 

[PGdude]

You guys are awesome for getting ultra shiny laps!

Honestly amazing.

 

[vapor matt]

Ok well the temps have gone down now further. these include the 15c offset set in speed fan, you will notice the CPU temp still needs the 15c adding! but not bad temps for D-tek fuzion and custom water external setup.

my idle temps while sat posting.

 

[PGdude]

Ok well the temps have gone down now further. these include the 15c offset set in speed fan, you will notice the CPU temp still needs the 15c adding! but not bad temps for D-tek fuzion and custom water external setup.


[IMG ]-[/IMG]

my idle temps while sat posting.

Whats your Quad clocked at?

 

[w3bbo]

Ok well the temps have gone down now further. these include the 15c offset set in speed fan, you will notice the CPU temp still needs the 15c adding! but not bad temps for D-tek fuzion and custom water external setup.

my idle temps while sat posting.

Nice.

 

[Scoobie Dave]

Did mine the other day due to bad temps and uneven temps across the cores (7c difference between core 0 and core 2!) with an average of 58c load iirc @3.6ghz under water. The IHS was worse than my e6600's the edges were raised and the centre was also convex which would have been ok for e6600 but not for quads. Its not in my system yet as I'm waiting for a PSU so I'll report back with any differences found. Here are a few pics of the results after 30 mins of lapping.

That looks lovely mate

So your telling me you got it that shiney in 30 min?

 

[w3bbo]

Yeah - bear in mind I this is my 6th or 7th cpu I have done now so I've had a fair bit of practice. Not to mention lapping various waterblocks that were scuffed up.

 

[Scoobie Dave]

Yeah - bear in mind I this is my 6th or 7th cpu I have done now so I've had a fair bit of practice. Not to mention lapping various waterblocks that were scuffed up.

I do keep wondering what sort of difference this would make to my cpu. The only thing im worried about if I do it (and im sure I can do a good job as well) is how it affects the resale value of the chip?

Im currently primimg at the moment 66 66 62 62 and thats on a high end water cooling setup.

 

[w3bbo]

Its only really worth doing if your chips is running excessively hot and/or there is an uneven spread of temperatures. Sometimes this can be solved by lapping sometimes not - its the risk you take. Voiding the warranty is little concern for me as once you overclock and put more than 1.35v through the core it voids the warranty anyway (how they would know this is beyond me). I aint had a chip die on me yet through excessive vcore and most of the chips I have lapped have sold more or less the same as ones that aint been lapped that are 2nd hand.

....and shiny copper looks nice too

 

[Scoobie Dave]

Its only really worth doing if your chips is running excessively hot and/or there is an uneven spread of temperatures. Sometimes this can be solved by lapping sometimes not - its the risk you take. Voiding the warranty is little concern for me as once you overclock and put more than 1.35v through the core it voids the warranty anyway (how they would know this is beyond me). I aint had a chip die on me yet through excessive vcore and most of the chips I have lapped have sold more or less the same as ones that aint been lapped that are 2nd hand.

....and shiny copper looks nice too

Have to say im tempted to give it a go. . . I might have to pop down Halfords later to pick up some sandpaper.


Mask up around the base of the chip, not to get dust on the bottom of the chip (using your common sense)

So let get this right you attach the sandpaper on something nice and flat (like a mirror, glass, anything dead flat) and gently rub the chip over it, not applying to much if any pressure on the chip, just let the weight of the chip do its work. Obviously applying this process over and over going up the different grades of sandpaper til you reach a nice shine.

Out of interest I take it you ever so slightly dampen the wet and dry sandpaper, more towards the end I would have thought?

 

[w3bbo]

I get better results using the paper dry (which btw is 'wet and dry' not sandpaper). You don't create enough friction to cause any heat and the water is only really used to lubricate the paper and as a handy by product prevents dust but for some reason I can only get a dull shine when its wet not a 'chrome' finish as seen.

I doubt you will get it done in 30 mins if its your first attempt so allow for an hour or so. I use a the glass out of a picture frame but yeah anything flat will do (glass/mirror/perspex etc).

The trick is using the right amount of pressure. A fair amount is ok in the early stages as the scratches you create will be taken out later on. The early stages (400/800) are only to get the plating off and make it flat. The rest of the stages using very fine paper is to get the shine which isn't required unless you are a bit anal like me and wish the chip to hold some value. In the last stage just let the chips weight apply the pressure.

Don't forget to clean the cpu after each stage removing any contamination from the grittier paper - many forget this and wonder why they get lots of scratches.

 

[Scoobie Dave]

I get better results using the paper dry (which btw is 'wet and dry' not sandpaper). You don't create enough friction to cause any heat and the water is only really used to lubricate the paper and as a handy by product prevents dust but for some reason I can only get a dull shine when its wet not a 'chrome' finish as seen.

I doubt you will get it done in 30 mins if its your first attempt so allow for an hour or so. I use a the glass out of a picture frame but yeah anything flat will do (glass/mirror/perspex etc).

The trick is using the right amount of pressure. A fair amount is ok in the early stages as the scratches you create will be taken out later on. The early stages (400/800) are only to get the plating off and make it flat. The rest of the stages using very fine paper is to get the shine which isn't required unless you are a bit anal like me and wish the chip to hold some value. In the last stage just let the chips weight apply the pressure.

Don't forget to clean the cpu after each stage removing any contamination from the grittier paper - many forget this and wonder why they get lots of scratches.

Cheers for the advice mate, I might give this a go later on. I think I have a pretty good idea what to do now

What do you use to clean the cpu out of interest?

 

[Scoobie Dave]

I just nipped out to get my wet 'n dry I got 400, 800, 1200 & 1500 from Halfolds. They only go up to 1500 grit but I think that should be fine enough.

Will be posting temps later tonight. . .

 

[Naj]

I had 2000 and 2500 grit. If you want a super shiney finish, they help, but not worth the extra effort.

 

[Scoobie Dave]

(Took these with my N95 so the quality aint great)

Here it is at 800 grit -

1500 - Before polish -

And after a little rub. . . -

Came out ok for my first lapping experience, only problem is I buggered up one of my 120x38mm Panaflows last night on my rad (snapped a blade, whilst taking it out of the case), but the temps are still ok with 1 fan on my 120.2 rad. Once I have another fan I can get a better idea of the difference in temps, plus when the artic silver beds in. Im estimating -5c difference in load temps.

So far so good though.

 

[SteveOBHave]

My Arctic Cooler Pro - crappy cell phone photo: Go the Brasso Magic ingredient

 

[Steedie]

Edit - Nevermind lol should have read further

 

[kirkster]

My hats off to you guys for sure. You've got balls to start what is essentially sandpapering a £200 chip !!!

Steve

P.S. I would like to do the same but scared of screwing it up!!!!