EggXpert

Performance wise won't be that dramatic comparing lapping both cpu and the hsf.

You expected 3-5C drop in temperature and depends on the cooler as well.

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Q9650 @4.05Ghz 1.2125VID
Gigabyte P45 UD3P rev1.1
XFX GTX 260 Black Edition
HT Omega Claro Plus + Logitech Z-5500 + Energy 5.1 Speakers

Nice work!

computergeek485:

we'll I'm running a QX6850 at 3.66 right now, full load for 3 days was 67-63c with the fan at 100%, my goal is to get it to be at those temps with the fan being silent more or less. I've considered water but that's way too expensive.

Before you lap check your heatsink and cpu for flat, flat is the real goal of lapping. Is the tunig in your sig what you are considering? I've never heard of a bad tunig, Your temps seem good for the OC, what is your v-core?

 The cpu is more often than not the culprit in a poor contact situation unless you have a TRUE. With a concave chip lapping the heatsink only can make bad temps worse.

With that voltage your temps are excellent, I doubt lapping would do much at all. Have you tried lowering that vcore or is that the bottom line?

Maybe change out your fans for some more quiet? The Tunig fan should still get the job done if it were turned down a little but I can't say for the CMs. The CM fans that I've tried went back in the box same day.

Ran my Q6700 @1.4875Vcore load around 52,54,54,57C with lapped TRUE and I didn't lapped the cpu. 

But if you put 2 fans it help to reduced temperature even better =).

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Q9650 @4.05Ghz 1.2125VID
Gigabyte P45 UD3P rev1.1
XFX GTX 260 Black Edition
HT Omega Claro Plus + Logitech Z-5500 + Energy 5.1 Speakers

i read my AMD Warranty Information and Installation Instruction booklet yesterday and i came across this:

This Limited Warranty shall be null and void if the AMD processor that is the subject of this Limited Warranty is used with any heatsink/fan other than the one provided herewith.

i never knew that... so i suppose i've already voided the warranty on my new processor the very day i received it. and i'm considering actually doing this now. . . but i don't see how AMD would know if you used an aftermarket HSF.

pyroxide:

i read my AMD Warranty Information and Installation Instruction booklet yesterday and i came across this:

This Limited Warranty shall be null and void if the AMD processor that is the subject of this Limited Warranty is used with any heatsink/fan other than the one provided herewith.

i never knew that... so i suppose i've already voided the warranty on my new processor the very day i received it. and i'm considering actually doing this now. . . but i don't see how AMD would know if you used an aftermarket HSF.

They typically ask that you send in the HSF that came with the processor along with the CPU.  If you still have it then you are OK if you don't send it in then they aren't obligated to honor the warranty.

computergeek485:

I'm going to take a stab at this over my spring break, first with my heat sink so if i mess up I'm out 50$ then the processor.

Its near impossible to mess up the heatsink, and you have to be an i***t to mess up the CPU. Just make sure you don't walk around shuffling your feet so you discharge static electricity and you'll be good to go. 

XtremeRevolution:

computergeek485:

I'm going to take a stab at this over my spring break, first with my heat sink so if i mess up I'm out 50$ then the processor.

Its near impossible to mess up the heatsink, and you have to be an i***t to mess up the CPU. Just make sure you don't walk around shuffling your feet so you discharge static electricity and you'll be good to go. 

Also, give yourself plenty of time to do it.  Patience pays when lapping your CPU and heat sink.

Yeah, all you need is a little patience and a steady hand... I've been lapping components since 2000 to get every last bit of performance out of every knook and cranny of a system. The first time I did it was with a couple P4 1.5s, some Thermaltake Indigo Orbs and an Asus P4T and Abit TH-7.

Materials-wise, go to an auto parts store for the sandpaper... They'll have all the grits you need, usually cheaper than anywhere else, and shops that have bodywork stuff are a dime-a-dozen. Find a small pane of glass, mine was out of a cheapy Wal-Mart picture frame, I think it was like 2x3"

Be careful what grit you start with, you can accidently make your job a LOT harder if you dig grooves into the heat spreader on the CPU or on the base of your HSF -- A good way to start to see just how "bad" the item you're lapping is, is to take a dry-erase marker and completely cover the part you're wanting to lap... Then wrap a white sheet of notebook paper on the glass and rub it in a small, controlled, circular motion. Hold the glass by the edges. Do NOT put pressure on the center because depending on the thickness of your glass, this can cause it to bow inwards. The parts with the marker still on them are your trouble spots... the more coverage there is and the darker it is tells you how heavy of a grit to start with.

Start with the roughest grit and work your way down until there is barely any grit left. Again, a good way to measure your progress is with the dry-erase marker. Don't put any pressure on the glass or part being lapped, as this can cause a slant in the end result, which is WORSE than being concave or convex to begin with! Just take your time, small circular motions!

NOTE: If you want the absolute BEST job, consider wet sanding instead of dry sanding, though this is definitely NOT for the feint of heart. I would not recommend wet sanding until you've gotten the basic procedure down pat!!! Namely because the "dry erase progress meter" will not work.

When you're done with the sand-paper and want a true mirror polish, take an un-ruled piece of notebook paper (NOT printer/fax paper) and do the same thing as per with the sandpaper. (this step needs to be dry)

Also, when you do this, don't waste your time with cheap thermal paste!!! If you're going to do something like this, you might as well use the best money can buy. Arctic Cooling's Arctic Silver line is great, but needs re-applied regularly. Their Ceramique/Alumina do not, though have slightly less performance. In my testing, if you want the best of the best, consider Coolaboratory's Liquid Metal Pro. I've used it with great results in air, water, TEC and phase-change applications.

Interesting, I haven't lapped mine yet but it is an E6600 B2 stepping with an Xigmatek S964 using a thin application of Arctic Silver 5 on a 680i A2 Revision and I can it get to 3.4Ghz stable @ 1.41v.

When I first OC'ed and installed the new H/S and thermal paste, it was around 62C max after a 4 hour Prime 95 stress test when I first started it up, but now it's running at 58-59C max after the Arctic Silver 5's burn in time (Running at 3.2Ghz with 1.41v, running it at 3.4Ghz doesn't seem to make much of a difference, maybe a degree or two).

Before the new H/S and Arctic Silver 5, I had it OC'ed to 3.0Ghz @ 1.36v with stock H/S and it was running a toasty 73C max after a 4 hour Prime 95 stress test.

I've been able to get it up to 3.6Ghz on air but it isn't very stable because I have to take it up to 1.45v and my motherboard doesn't seem to like that I bet I'd have to switch to watercooling to reach 3.6Ghz.

I have mine at 3.2Ghz right now and it's at 1.40v with 58C max temp cause I'd like mine to last a couple of years, lol. My GPU is another story though I should post up about sometime, lol.

Very nice post though, I may try that sometime.

Respectfully,

PROACEX1

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By Anonymous, 1929: "See the happy Moron. He doesn't give a d***. I wish I were a Moron-My word! Perhaps I am..."
By Mazer Rackham: "Early to bed and early to rise," Mazer Intoned, "makes a man stupid and blind in the eyes."

PROACEX1,

I lapped my E6700 and an ultra cheap ($10) aluminum MassCool heatsink and it runs rock stable at 3.5 ghz with a 5% increase in voltage.  I might get more but I am also over clocking the RAM which may be holding me back.  My temps went from 58-60C under full load down to under 50-52C.  They might be lower now that the AS-5 has had a change to set up.  For a little money and elbow grease lapping pays off well, IMO.

Nice, I may have to try lapping mine sometime. I'm holding off right now because I may sell my CPU to a friend and get myself an Intel i7 and a new mobo and DDR3.

I to used a pretty low price H/S, with great performance with very low price, I got mine for $25 and it outperforms almost every other H/S out there. I could lower the temps quite a bit by lowering the voltage, I OC'ed mine to 3.2Ghz @ 1.38v before but I didn't want to fine tune it for stability so I just left it at 1.40v. I can get it to be stable at 3.4Ghz at 1.39v-1.41v but if I'm going to sell this thing I'd rather not have them come back in a few months or a year and ask why their CPU fried.

I wonder what my temp decrease would be if I lapped mine though. I'd likely be able to get it down in temp enough to bump the voltage up two more clicks to get it to 3.6Ghz.

I may try that with my i7 if I get it, or if I don't I may try that with my current E6600. Who knows, I just will have to find the time first before I can do either.

Respectfully,

PROACEX1

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By Anonymous, 1929: "See the happy Moron. He doesn't give a d***. I wish I were a Moron-My word! Perhaps I am..."
By Mazer Rackham: "Early to bed and early to rise," Mazer Intoned, "makes a man stupid and blind in the eyes."

fatboyHD:

i lapped my 5000 BE,,boy, I'll never do that again, AAAAKKkkkkkkkkk, took me 2 days to get that c**p offen my tongue

What in the world are you talking about? It took me a total of 3 hours to do my heatsink and my CPU, and I had done it for the first time. 

 TECHARP Fourm

http://www.techarp.com/showarticle.aspx?artno=433