Q6600 lapped!

[ArchAngel777]

Well, I am happy to report that my lapped Q6600 has lowered temperatures across all cores by about 8-10c It also evened out the cores a bit, but not as much as I had hoped. Before Core 0 was up to 9 degrees warmer than Core 3. Well, now they only have a delta of 4-5 degrees. So that is improved.

I was nervous before taking the CPU out of the case and setting out to do it. But once I took it out, the fear left me and I lapped away... It started out slow so I speed up the process... Took a good 2 hours to lap it. I went through about 10 sheets of sand paper 220/400/800/1500. I didn't really mirror out well, I just did two sheets of 1500 slightly damp. Not the mirror effect that some have Excuse the crappy pictures...

I knew I had a lot of work when I seen this...

Two hours later... Finally...

I also lapped my Tuniq Tower, but that was pretty good overall so I didn't spend more than about 15 minutes on it.

 

[DrMrLordX]

Wow, nice results. Your IHS must have been hella warped to get results that good. First picture says it all, in fact.

 

[jmmtn4aj]

So.. tempting to try this

 

[RaptureMe]

Wow you should start again and lap it for another 30 mins on some 400g cause that first picture you took is way way way to concaved!!
That is more then likely the worst case for warped IHS I have ever seen.
No wonder your temps were so fricken high..
Really you should so do another short peroid lap session.
You could probably knock off a few more degrees.
Good job none the less.

 

[ArchAngel777]

Originally posted by: RaptureMe
Wow you should start again and lap it for another 30 mins on some 400g cause that first picture you took is way way way to concaved!!
That is more then likely the worst case for warped IHS I have ever seen.
No wonder your temps were so fricken high..
Really you should so do another short peroid lap session.
You could probably knock off a few more degrees.
Good job none the less.

/?

I finished it off with 1500g - the second picture has it perfectly flat.

 

[jmaker]

ArchAngel can you provide some benchmarks so others, like myself, can gauge their own lapping attempts? I have the same heatsink and processor as you and lapped both and am not entirely confident that my temps should be where they need to be. My temps reach 68-70C at 3195Mhz with cpu-z reporting a 1.344 voltage (it's 1.4 at idle) at load running Prime95. At idle currently my temps are 43-46C. Also, what is the proper heatsink position?

 

[eelw]

I was tempted to lap my B3, but since I knew I was going to trade it in for a G0 I didn't. Running now at 3.4GHz on my G0 and full load is in the high 60s. Not going to bother to lap my G0 since I'll just trade it in for a 45nm in the new year.

 

[Aharami]

yep. lapping my Q6600 G0 helped a lot also. Before I only had my ultra 120 extreme lapped and I was getting 59-62 C under full load (CPU OCed to 3.2 @ 1.3475 Vcore). After lapping the CPU (did only 800 and 1000) im getting 32-35 idle and 48-50 load

 

[ArchAngel777]

Originally posted by: jmaker
ArchAngel can you provide some benchmarks so others, like myself, can gauge their own lapping attempts? I have the same heatsink and processor as you and lapped both and am not entirely confident that my temps should be where they need to be. My temps reach 68-70C at 3195Mhz with cpu-z reporting a 1.344 voltage (it's 1.4 at idle) at load running Prime95. At idle currently my temps are 43-46C. Also, what is the proper heatsink position?

Wow... we have almost the same setup dude! Your temps are very similar to mine (current ones). B3 or G0?

The proper heatsink position depends on your fan setup in your case. If you are exhausting all the hot air out the back, then you have the Tuniq Tower blowing air right to the exhaust. You would then want some intakes in the front of the machine. Generally for air flow you need to have the same ammount of airing coming in as coming out for best temperatures.

What is your PWM temp? Load up Abit motherboard program... I'd be interested to know your PWM temps on load, because mine with a Tuniq Tower is 80+, which I believe, in turn heats up my CPU. Which explains the HUGE delta between my idle and load temps.

When you ask for benchmarks, do you mean temps before and after?

If you want to gauge your own lapping attemps accurately, then you need to do two things.

1) Verify the computer has been off for a while (15-30 minutes)

2) Keep ambient temps the same

3) Keep same case setup, in same area. If you ran it the first time with the side panel off, then leave it off. If you ran the test with it on, leave it on for after results. Keep settings as indenticle as possible.

4) Record temp readings at exactily the same time measurement under load (I used 15 minutes as my test).

If you follow those simple rules, you should be able to determine how much better your lapped CPU runs than it did previously.

Also, when lapping this CPU, I recomend that if possible, you find the plastic back piece that shipped with it. It helps protect the back circuits (I am paranoid about it, personally) Others have said to use some of that 3M non adhesive tape residue type tape.

As for as a risk factor... I honestly am pretty confident there is not much risk unless you sand too far, or too hard, or I dunno, do something really stupid. There always seems to be someone that does it too! So, I dunno... I am just glad I wasn't that person. But in joking aside, it is quite safe. Just keep in mind warranty voided.

 

[jmaker]

Well I lapped mine right away, so I never had the opportunity to test it all at stock/non-lapped. My PWM temp from Abit EQ was really high on load, nearing the 100C limit, so I had to shut down Prime95. Here's my temps at idle if you want to compare.

http://img518.imageshack.us/im...4766/vistatempsqu3.jpg

I even have the side panel off my case hoping it would make everything cooler but perhaps not. I have one intake fan on the front bottom of my case, and one exhaust fan on the back. It's just a little disconcerting that others are getting 48-50C on load and I'm getting upwards of 70C on load.

 

[ArchAngel777]

Originally posted by: jmaker
Well I lapped mine right away, so I never had the opportunity to test it all at stock/non-lapped. My PWM temp from Abit EQ was really high on load, nearing the 100C limit, so I had to shut down Prime95. Here's my temps at idle if you want to compare.

http://img518.imageshack.us/im...4766/vistatempsqu3.jpg

I even have the side panel off my case hoping it would make everything cooler but perhaps not. I have one intake fan on the front bottom of my case, and one exhaust fan on the back. It's just a little disconcerting that others are getting 48-50C on load and I'm getting upwards of 70C on load.

You are not alone bud... But, if anything, this makes me think the temps Asus is reporting are suspect.

We are virtually running the same hardware. You have a cooler G0 stepping and an 8800GTX rather than my GTS, but essentially our temps, down to the PWM are near exact (Clock speed too, for that matter).

I decided to test with a fan blowing on the side of my case with it open out in the air and found that my temps were only 1-2c lower, tops... Generally they were the same. This implies to me that the Abit board may not be reporting temperatures correctly.

Also, the PWM temperatures are the real concern to me... I don't honestly care that my CPU loads at 70c, but when PWM rises up toward 85+, that concerns me... Now, in the great scheme of things, I could care less about PWM temp because the motherboard is 70 bucks only and if it dies, it would be easy to replace. The Q6600 on the other hand costs quite a bit more.

Anyway, before people come in here and blade your Tuniq, I can confirm that a top down blower does not affect PWM temps, it doesn't in my case and had a very high powered shooting through the heatsink (110CFM Silverstone). I can feel the air bounce off of the motherboard with strong force... So, cooling PWM via blowing air on it is near worthless (as I have found out).

So, I guess I am just here to tell you that it does not seem likely we have bad chips afterall, it is probably the Abit IP35-E that is to blame. That doesn't make it a bad board, however.

If I had to do it all over again, I would have went Dual Core, or just waited for the Penryn's with a decent multiplier. But, being as I made my choice, I am just going to live with it and be happy.

Don't let it get you down bro!


EDIT ** I just noticed something... Your system temp is 46c... That means, quite litterally, your case is heating up. Unless you happen to be in the desert in California, then I think you simply have an air flow problem. If you were to drop your case temp 15c (which would be easy) you would see a huge decrease in temps accross the board (probably 10-15c). I dunno bro, but a case temp of 46 degrees is ridiculous! I think the good news is that you know what you have to solve in this situation, so just address the issue. Good luck!

Edit 2 ** Also, I happened to notice that your Vcore is set pretty high for a mild overclock. I'd drop Vcore a good .04 and see if it is stable, that alone should drop temps around 5c accross the board, maybe even more.