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Question for you guys running a Q6600 G0 stepping

I'm using a G0 with a Tuniq Tower @ 3.33 Ghz and about 40 degrees when idle, 60 degrees running a DC project.
 
Originally posted by: Desslok
What HSF are you guys using? The stock Intel cooler?
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I did an inexpensive upgrade from a Pentium D 2.8 GHz chip and an Intel D945Psn motherboard (which I now need to get rid of). That system had this cooler and I found it worked perfectly on the new Abit IP35-E w/Q6600. So if you have one of them hanging around, give it a go. 😉

 
stock cooler is hardly adequate at stock speeds on a quad, imo

i'm running a B3 stepping q6600 at 3.2ghz with a Zalman 9700 HSF
temps are somewhere in the 60 deg C range all cores loaded, I don't really know the real temps because every monitoring program i've tried reports something different

a g0 stepping should be a bit cooler
 
Looks nice, but how does it compare with a Freezer 7 Pro? It's about twice the price.
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I have no idea. The Q6600 CPU alone cost $300 so I'm not worried about possibly saving $10 or $20 on the device that cools it. I have used the Rosewill coolers on all three of my Q6600 systems and the coolers work well. Like I mentioned earlier, I can turn the fan speed down to keep noise at a tolerable level yet the CPU stays cool.

The Rosewill cooler that I linked to has a lot of metal (to move the heat) and the fan moves quite a few cu ft of air per minute. When I am pushing the clock speed on Q6600s, I want to be sure that the CPU is going to stay cool.
 
What HSF are you guys using? The stock Intel cooler?
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Follow-up question of my own:

Are you guys lapping the base of the CPU cooler? All of the Rosewill coolers that I used didn't have mirror-smooth finishes on the bottom so I spent some time lapping the CPU cooler before installing it.

Is anyone else lapping their CPU cooler on systems that are being overclocked and/or running the Folding client? I read a few articles online that said hand lapping is a waste of time. But I have a hard time believing that the a CPU cooler with a hand-lapped mirror finish is not better at transferring heat than the CPU cooler with the "factory finish" .

Comments?
 
Scott -- It's not the finish that's important -- mirror v. satin v. scratched -- but how flat the mating surfaces are -- the greater the contact area, the greater heat transfer. This includes the heatsink cap on the CPU, itself. Intel is notorious for having raised corners, especially on the cheaper dies. BEWARE: IF YOU LAP THE CPU, WARRANTY IS VOID. However, a lot of enthusiasts are lapping the CPU heatsink right down to the copper base because if it's not flat as well, there's really no point in lapping the heatsink on the cooler end. For most users, (not overclocking), stock is flat enough. So is the stock HSF, for that matter, notwithstanding the noise they make.

But you are correct in that there is a wide variance in quality control regarding the finish on that surface. I've gotten two Thermalright Ultima's, which have a beautiful mirror finish on the mating surface. On one of them, however, the guy on the buffing wheel must have gotten carried away, and buffed the corners down so the surface was convex. It took a couple of diligent hours to hone it back down to level, but had I not, the contact area would have been about the sizes of a dime. So it's definitely worth checking.

A good way to check your surfaces is to just coat each with a colored felt tip marker, then make one pass with light pressure over some very fine, #600 - #1000 grit sandpaper, laid on a piece of glass. Check for any high spots that rubbed off the marker. If it's scratched evenly all the way across, or close to it, there's no point in spending the time effort, (and risk) lapping.
 
Atm I've only got my Q6600 G0 running at 2.9GHz (can't test properly until the race is over) ,I'm using a Scythe Katana 2 ,I choose this as a good all rounder & a fairly light cooler too.

I originally bought this cooler for E6420, but it seems to be doing a fine job of cooling my quad🙂
Temps @2.9GHz, 1.28 vcore ,running SETI (all cores @100%) 55-56C

scott
My cooler already has a mirror finish on the baseplate.

Desslok
lol@ your sig😉
 
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