is it worth lapping ur CPU?

[fatmario]

I have q6600 go stepping cpu, i lapped my thermalright 120 extreme heatsink My idle is around 30 C , load 47 C

Is it worth it lapping the cpu?Its kinda risky from my aspect of the view, if something goes wrong lapping it ur f@k, also its going to void my 3 year warranty, what you guys think?

 

[jeffw2767602]

overclocking also voids your warranty. also, its pretty hard to fck up a cpu by lapping it. just dont use much water.

 

[fatmario]

lol i havent overclock my cpu yet running on stock speed.

 

[bradley]

In my opinion, I don't think it's worth it to lap your cpu. Lapping kills the warranty and the chip's resale value. And there's a chance something could go wrong if you're not careful.

 

[PAPADOC]

I think it's worth it, but it's not as clear cut as they say on the websites.

I lapped both my q6600 & my ultra-120 extreme.

And my load temps reduced by 5 degrees celcius for each core.

I think it's worth it.

But the problem in this lapping business is that I believe if the surface you are going to lap is not already level, once you place it on the sandpaper the item will slant a bit when it rests. So when you start sanding you will be sanding the surface even , but still with that original slant.

I hope you can understand , it's hard to explain without pictures, but in other words one side is higher than the other.

My Q6600 & ultra were both not leveled, so when i started lapping I got a more level surface but still at an angle.

So what i did is i started sand more on 1 half of the cpu 's heatspreader to get it more even with the other half. Once I did that , that is when i got my 5 degrees,
before when i just lapped the whole surface all at once, i only got 1-2 degrees gain.

Now I'm not toching the Q6600 anymore , but i still have to work on the ultra because it's so obvious that 1 side is higher than the other.

Hope this makes sense!

 

[MyLeftNut]

I think it's worth it to lap the cpu. If you're doing exactly what you should be doing when you're lapping, which is lapping the IHS side, then there should be absolutely no way you can mess up. If you're using water, just make sure you have enough to wet the sand paper and not have excess fluid. Even then, I don't think that'll do much to the cpu if you get it on the contact side, provided that it's wiped off and dried before you install it on your motherboard.

 

[RaptureMe]

It all depends on if you burn out your Q6600 if you can afford to bite the cost to buy another to replace it.
I mean they are only in the 250-280 range.
Also I would not say that the resell value goes down either as I have seen it increase the value quite a bit say upwards of about 50 bucks or so on ebay for a nice mirror finish lapped cpu.
Personaly I had no choice but to lap my E6700 due to getting high temps of about 65-70c at speed of only 10x300=3.0Ghz.
After a really really good lapping my temps dropped way way way down to about 28-35c and I am now able to push 10x360 3.6Ghz at stock volts 24/7-365.
I can even go as high as 400-500 fsb but again those temps are way outta my legue for my type of cooling.
But without lapping I could never of dreamed of getting close to those kind of Oc's.
I would say if you need to lap due to temps then why not, give it a shot.
I just got me a new "q6600 go" from the egg last week and I will be lapping it as well.
I sure hope my rambleings help you to decide..

 

[ArchAngel777]

Originally posted by: RaptureMe
It all depends on if you burn out your Q6600 if you can afford to bite the cost to buy another to replace it.
I mean they are only in the 250-280 range.
Also I would not say that the resell value goes down either as I have seen it increase the value quite a bit say upwards of about 50 bucks or so on ebay for a nice mirror finish lapped cpu.
Personaly I had no choice but to lap my E6700 due to getting high temps of about 65-70c at speed of only 10x300=3.0Ghz.
After a really really good lapping my temps dropped way way way down to about 28-35c and I am now able to push 10x360 3.6Ghz at stock volts 24/7-365.
I can even go as high as 400-500 fsb but again those temps are way outta my legue for my type of cooling.
But without lapping I could never of dreamed of getting close to those kind of Oc's.
I would say if you need to lap due to temps then why not, give it a shot.
I just got me a new "q6600 go" from the egg last week and I will be lapping it as well.
I sure hope my rambleings help you to decide..

So, you were running 70c, and then you lapped it and it magically went down to 35c... Sorry dude, your number was either wrong before, or wrong later and even so, if it were possible, then the reason it was running hot from the get go was because you forgot to put thermal grease on it or something, or maybe didn't tighten it... That would have to be one farked up CPU and Heatsink in order for a lap to lower temps 35c.

 

[Capitalizt]

Lapping is worth it if you have high temps and have tried all other methods of cooling (more fans, etc). Your temps sound perfectly fine though.

If you do lap, you'll need to do both the CPU AND the heatsink of you want any results. I did anyway. The idea is to have two perfectly flat surfaces. A flat CPU won't do much good with a warped heatsink.

 

[ArchAngel777]

Originally posted by: jeffw2767602
overclocking also voids your warranty. also, its pretty hard to fck up a cpu by lapping it. just dont use much water.

I believe the concern with ruining the CPU by lapping has more to do with potentially sanding off too much that you break through the heat spreader.

As for overclocking, while true, it does void your warranty, I am not sure how Intel could prove you overclocked it.

 

[firewolfsm]

It's worth it most of the time.

There's no risk (now that there are no pins), resale value actually goes UP because a lot of people don't want to lap themselves and will pay more for a good job. It can reduce temps up to 10C, it's cheap, takes half and hour and always shows some gain.

After lapping three processors I found that the best way to do it is to go up to 1000 grit paper, no higher, maybe 800. Buy 300, 400, 600, and either 800 or 1000. Use water on the first two or three papers, but water is a bad thing on higher grit papers. and when you do put water, just put some on your palm, not too much.

 

[RaptureMe]

Originally posted by: ArchAngel777

Originally posted by: RaptureMe
It all depends on if you burn out your Q6600 if you can afford to bite the cost to buy another to replace it.
I mean they are only in the 250-280 range.
Also I would not say that the resell value goes down either as I have seen it increase the value quite a bit say upwards of about 50 bucks or so on ebay for a nice mirror finish lapped cpu.
Personaly I had no choice but to lap my E6700 due to getting high temps of about 65-70c at speed of only 10x300=3.0Ghz.
After a really really good lapping my temps dropped way way way down to about 28-35c and I am now able to push 10x360 3.6Ghz at stock volts 24/7-365.
I can even go as high as 400-500 fsb but again those temps are way outta my legue for my type of cooling.
But without lapping I could never of dreamed of getting close to those kind of Oc's.
I would say if you need to lap due to temps then why not, give it a shot.
I just got me a new "q6600 go" from the egg last week and I will be lapping it as well.
I sure hope my rambleings help you to decide..

So, you were running 70c, and then you lapped it and it magically went down to 35c... Sorry dude, your number was either wrong before, or wrong later and even so, if it were possible, then the reason it was running hot from the get go was because you forgot to put thermal grease on it or something, or maybe didn't tighten it... That would have to be one farked up CPU and Heatsink in order for a lap to lower temps 35c.

No it didnt magically drop to 35c smart ass.
I had it overclocked to 3.0 using the stock heatsink and before lapping it got up to 70c after playing games like bioshock on full settings for hours on end...
Only after lapping the crap out of my cpu and cooling it with a aftermarket heatpipe tower cooler did it drop way down to the 35c mark.
And I am not some noob that forgets to put thermal paste/AS5 on a cpu before mounting a heatsink...
Anyways the point is that after the lapping job I am able to now overclock to the 400-500Fsb area when before lapping I could only get to 300-350.
Yes it is worth it!!

 

[ArchAngel777]

Actually, I wasn't trying to be a smart ass. I just think it was misleading to insinuate that lapping your CPU and heatsink dropped tempatures down 35c. In any event, I am not sure if that is what you intended to post (obviously not after reading your second post).

In any event, thanks for clearing that up.