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how safe is lapping

hardc0re_tid

hardc0re_tid

hardc0re_tid

Soldato
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as above really, cant really find much info on how safe it is, and the does and donts.

im too scared to lap my cpu incase i break it, ok, i know once i do it i void warrenty, but id like to get a more than my 5 months use out of it

1. has anyone actually had a cpu die on them due to lapping? (not in the long run, i mean lapped it, put it back in, wont boot)

2. how thick is the IHS - could i sand right down to the core?

3. what not to do/touch, do i put the black plastic cover back on

i have the 6300, it idles at 33c (ACF 7) full load Orthos 55-58

i know my temps arent high, id just like to get them as a low as i can on air, and lapping is free, as long as it goes to plan
 
Is your cpu overclocked? I think most people would lap their cpu if it's giving high temps at default, or they are overclocking to the max and want to squeeze that extra few mhz out of it while keeping temps down.

Also, are you using the stock cooler, because if you are, the safest way to lower temps is to get a good cooler like the Tuniq Tower or Thermalright Ultra 120 which are both top end air coolers that don't cost too much.

I have the Tuniq Tower, and my e6600 at 3.6 idles at 32c and is only 55c under load (running orthos) :D
 
why lap ?

your temps are fine...

lapping invalidates your warranty and is only needed for extreme clocks.

It will make no difference to your life as those temps are fine
 
Lapping is relatively safe. However with those temps, I wouldn't bother considering lapping tbh. Lapping can only improve the contact with the heatsink if the IHS is slightly convex or concave. Looking at those temps, I would say that you have fairly good contact already. If you want to improve temps, then look at getting a better heatsink, watercooling or even phase cooling.

Edit; Damn, beaten. Morning easyrider. :)
 
the 6300 is at 2.8 at the minute, yes i too think they are really good temps but im looking to go higher 3.15 (450x7) but as soon as i go there the temps are around 38 idle and mid 60's load

im using the arctic freezer 7 with 3x120mm fans, 2 intake and 1 exhaust

EDIT - im also looking to change case to an Antec 900, i currently have a thermaltake shark, and take advantage of the large top exhaust fan right above the heatsink, which id also like to change to a TT or a Ninja but id have to modify the backplate for that as i have a p5b-d
 
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Lapping will give you almost no improvement. You may even make matters worse if you don't do it properly, ending up with a depressed section of the chip with poor heatsink contact.

Don't do it, your not going to get anything out of it and you have a rather bigger chance of naffing it up.
 
my E6600 idles at 45-50- and this is at stock speeds with the arctic freezer pro 7

count yourself lucky.

the temps are not any diff between the stock fan and the Arctic freezer

i think my case is the problem, as when i take the side panel off the temps drop by 6-8 deg on the cpu

so i am looking at getting a better case

maybe your airflow case, is also a limitation

my temps are way to high and thats with the fan speed at full blast
 
techmob said:
maybe your airflow case, is also a limitation

my temps are way to high and thats with the fan speed at full blast
Click to expand...

all my fans are at full tilt, noise isnt an issue and they provide excellent cfm and little noise, case cooling isnt a problem tbh

just want to see how low i can get my temps without spending silly money on water or phase
 
my ihs was pretty flat but lapping still knocked about 6-7c off my load temps under water.

unless you're a moron you're not going to fubar your chip either

worth it but as always YMMV :)
 
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my cpu v is at 1.284 and i get 47c right now with my window open, in the summer this will get to 55/60 idle easily, i am seriously considering lapping as i know for sure my cpu runs a lot hotter than most peoples e6600.

Let me know how you get on if you decide to in this thread
 
GreenThu)v(b said:
my cpu v is at 1.284 and i get 47c right now with my window open, in the summer this will get to 55/60 idle easily, i am seriously considering lapping as i know for sure my cpu runs a lot hotter than most peoples e6600.

Let me know how you get on if you decide to in this thread
Click to expand...

If you want to clock it more I would say go for it really... are you running on air?

Stelly
 
Dureth said:
Lapping will give you almost no improvement.
Click to expand...


Sorry dude but that's guff I am afraid. The C2D's are well known to have some of the worst finishes on their IHS'. A large number of people have witnessed a night&day difference in temps after lapping them.

I lap every single CPU that I use, since back in the days of a Northwood 2.2 etc, when it tended to make less of a difference due to less speed/voltage/heat output than nowadays. While it does surprise me just how little some folks protect the cpu prior to a wet lap, they are pretty damn tough. I am not saying do it, but if you have the patience and protect the cpu properly you should stand no risk of damaging the cpu at all, just wave goodbye to the warrranty.
 
Mr Footlong said:
...
While it does surprise me just how little some folks protect the cpu prior to a wet lap, they are pretty damn tough.
...
Click to expand...

I certainly agree with the benefits of lapping. I was initially less than overwhelmed with my AC7FPro, so I lapped it. I followed all the guidelines and took near 10dc off idle. Very happy. But I'm afraid I bottled out of touching the cpu. So I was wondering what you would recommend regarding lapping the cpu?
 
if you have a c2d just use the little piece of black plastic the chip came with.

you shouldn't be using enough water that it's a problem anyway.
 
Looking at your temps I would not bother.

All I did was put a straight edge accross the IHS in both directions to see if if was flat or not. Being a mechanical engineer and as the cpu was out, I lapped it anyway. If I had known that it would only give me 1-2c lower temps I would not have bothered.


Matt
 
When i lapped mine i started off taking my time doing it slowly, making sure nothing was going to go wrong...Then i notice some the the grit was getting on the some of the contacts... Then the chip was getting wet...

After that i didnt care, even ran it under the tap to clean the crap of the cpu once i finished, left it 30 mins in the boiler closet to dry off.

After all that it still worked! Temps came down around 3 to 5c, not sure it was really worth it tbh
 
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