Core 2Quad 6600 temp

[shiju80]

Hi,

What is the maximum temperature observed on C2Q6600 OC to 3 Ghz at stock voltage?
I am seeing around 65-66 degree Celsius with Prime 95, when run for 1 hr.
Cooling is done using Thermalright 120 Ultra extreme with a 120 mm fan.

Is this temp normal? Room ambient temp is around 23-25

Thanks

My Rig:
C2Q 6600 @ 3 Ghz Stock Voltage
Thermalright 120 Ultra extreme
MSI p35 Platinum
OCZ 800Mhz RAM
Leadtek 8800GTS 320 MB stock speed.
Corsair VX 450 SMPS
Coolermaster Ammo 533
Samsung 940 BW

 

[dlpdx]

shiju80:

As one data point, just yesterday I just set my system up with the minor OC from 2.4 to 3.0 Ghz. I have the same heatsink (lapped) and a 120mm fan (Scythe SFF21F). With a room temp of around 21-22 degrees Celsius, I get cpu core temps that vary from 37 to 44 degrees C when running prime95 for several hours and 27-34 degrees C at idle. These core temps are measured with Everest.

Note that even with the OC I have actually been able to reduce the CPU core voltage to 1.14-1.15V from 1.20V (the motherboard's auto setting for VCore) without any problems at all. This in itself reduced prime95 core temps 1-2 degrees C. Everything is stable after 12 hours of running prime95.

Running the Q6600 at the default 2.4 Ghz with the stock heatsink resulted in temps of 45-48 degrees C at idle and 51-55 degrees C when running prime95. Needless to say, I'm very happy with the temps I'm getting with this heatsink and fan combo.

 

[shiju80]

Hi dlpdx,

Thanks for the reply,
The temps you are getting are extremely good, but can you recheck the temp using coretemp or RMClock, because these are the utils that i use to check the temp. There could be variations, not sure.
I am including a link to download Coretemp, in case you don't have it already.
BTW my 6600 is Go.
http://www.download-free.progr...download-CoreTemp-0.95

 

[dlpdx]

Hello shiju80:

The CoreTemp and RMClock readings match the Everest readings. My Q6600 is a G0 stepping as well.

The case fans I use are reasonably quiet but move a fair amount of air through the case. I have the cables managed well in order to optimize air circulation.

If you are moving adequate air through your case then I would worry about how well the heatsink is seated. You have one of the outstanding heatsinks available at this time and it doesn't appear to be doing its job for you.

I'll check on this thread in the AM. My insomnia is starting to wear off, fortunately.

Dave

 

[Thor86]

Originally posted by: shiju80
Cooling is done using Thermalright 120 Ultra extreme with a 120 mm fan.

Maybe you need to tell us more specs/details on the fan used.

Obviously different fans/speeds/types will vary the cooling properties.

 

[Idontcare]

Originally posted by: shiju80
Hi,

What is the maximum temperature observed on C2Q6600 OC to 3 Ghz at stock voltage?
I am seeing around 65-66 degree Celsius with Prime 95, when run for 1 hr.
Cooling is done using Thermalright 120 Ultra extreme with a 120 mm fan.

Is this temp normal? Room ambient temp is around 23-25

Thanks

My Rig:
C2Q 6600 @ 3 Ghz Stock Voltage
Thermalright 120 Ultra extreme
MSI p35 Platinum
OCZ 800Mhz RAM
Leadtek 8800GTS 320 MB stock speed.
Corsair VX 450 SMPS
Coolermaster Ammo 533
Samsung 940 BW

That does seem rather warm.

I am running my G0's at 3.3GHz (9x367) with around 1.35V Vcore (bios) and cooling with a Tunqi120 (which if anything is less superior than your cooler) and my temps never exceed 60°C even after >12hrs of Prime95 on small FFT.

(Note my sample size is five G0's, so my results can't be a fluke or a lucky application of AS5 or I'd have more range and outliers from my systems)

 

[TraumaRN]

My system with a Tuniq Tower 120 @ 3.51 loads up to 58C on the hottest core and 52C on the coolest after 10+ hours of Prime 95. So check your heatsink contact...and what is the RPM on the 120fan? And what kind of fans do you have in your case?

 

[Griswold]

Without knowing the details about the airflow in his case, one cant really make a qualified comparison. Quads generate alot of heat and the best HSF cant work miracles if you dont move this heat out of the case. At any rate, the temperatures he reports are ok. They're on the higher side but fine if his system is built for silent operation. Also, the ambient temperature of up to 25°C does its share.

 

[idiotekniQues]

seems a bit high to me for stock voltage, a mild OC and those ambients.

not saying they are dangerous, they are not, they just seem high for the setup if his airflow in the case is good.

 

[BonzaiDuck]

Originally posted by: shiju80
Hi,

What is the maximum temperature observed on C2Q6600 OC to 3 Ghz at stock voltage?
I am seeing around 65-66 degree Celsius with Prime 95, when run for 1 hr.
Cooling is done using Thermalright 120 Ultra extreme with a 120 mm fan.

Is this temp normal? Room ambient temp is around 23-25

Thanks

My Rig:
C2Q 6600 @ 3 Ghz Stock Voltage
Thermalright 120 Ultra extreme
MSI p35 Platinum
OCZ 800Mhz RAM
Leadtek 8800GTS 320 MB stock speed.
Corsair VX 450 SMPS
Coolermaster Ammo 533
Samsung 940 BW

Let me pontificate briefly.

Although a 3 Ghz over-clock producing core temperatures between 65 and 66C at room ambients in the low to mid-70s seems too high to me, a look at your computer case tells all.

This is a NEATO computer case in concept. But basically, what I see is one intake fan (probably low CFM) obstructed by drive-cages, and one, basic 120-mm exhaust fan.

If you can increase the air intake by adding another fan to the bottom, front or side, and if you can build a foam-art-board duct-box that will channel air over the hot components -- through the heatsink fins and out the case rear exhaust fan -- you can cut these temperatures significantly. In fact, you could completely eliminate the CPU fan if you simply duct the exhaust fan intake-side to the cooler fins -- so that the only intake air for the cooler comes through the broad-side edge of the fins on the side opposite the exhaust fan.

I'm running the B3-stepping of the Q6600, which requires more voltage and therefore runs hotter than the G0. I spent a major part of last year choosing fans, deploying fans, building ducts, and running tests. At about 78F (over your upper limit of room-ambient), I don't believe my 3 Ghz over-clock shows core temperatures exceeding 60C. Under the same conditions in a range between 78 and 80F room-ambient, my 3.2 Ghz over-clock shows core temperatures that do not exceed 65C.

But I would LOVE to have a case that is as compact as yours. What I have instead is a modded Compaq ProLiant 1994 Server case -- and inch or so wider and 4 inches higher than any full-tower case on the market. It may have "handles," but I sure am glad I have 3" double-wheeled casters with brakes on the bottom of the case. With the caster-wheels, add another four inches to case-height.

We still would like to know what sort of fan you've deployed on the Ultra-120-Extreme.

I believe that you need at least 50 CFM -- or slightly more -- to capture the cooler's minimum thermal resistance.

Thermal paste using micronized synthetic diamond particles that are at least 80% of the paste's composition will get you another 3C drop in temperatures.

What sort of provision have you made for cooling your graphics card(s)? If GFX fan-exhaust goes into your regular case-interior air, it will warm up the air that runs through the CPU cooler-fins, and you will not get the sort of cooling you would want from the U-120-Extreme.

I can see there are enough people dropping in to this "CPUs and Over-Clocking" forum who should also spend more time at "Cases and Cooling."

 

[ViRGE]

I'm going to disagree with everyone else here and say that isn't too high. Some Q6600's just aren't cool chips, my B3 Q6600@3ghz will top out at 70C on a hot day, even though I'm also on stock voltage (1.3v). It's the luck of the draw, not everyone wins as big. 70C and below is perfectly fine, IMHO.

 

[LOUISSSSS]

yea it seems okay. it can also depend on your room/case temps. if ur room is warmer than 70F then those temps are fine

 

[laofu]

My q6600 g0 core temps are
58,58,52,52 for 2.4ghz @ 1.1625v
68,68,62,62 for 3.0ghz @ 1.3250v
running prime95 25.x, Room temp 29-30C, no lapping just default installation

MB: P5KE
HSF: Thermalright ultra expensive with ninja scythe fan and AS5 paste.
Graphics: XpertVision 8800gt idle 65C, crysis load 90C <-cheapest G92 i can find
RAM: 2 gig Kingston Hyperx 6400LL

My previous HSF is the Useless-Scythe-Ninja-Plus-Cut.Myself-Rev.-Bleed which gave me
65,65,55,55 @ 2.4 @ 1.1625
75,75,65,65 @ 3.0 @ 1.3 (failed prime)
I guess this HSF can only perform the same as stock HSF due to push-pin design so I went and bought TR.

Not sure which ideal temps to trust from the net...
Temps seem ok for me but I would preferred 60-65C @ 3.0....

 

[BonzaiDuck]

For laofu's G0, and to emphasize what I said before, I'd say the temperatures are higher than they NEED to be, but well within the range that is acceptable.

In a PM just received, someone sent me a link to a forum post (a different forum than Anandtech) by our over-clocking guru Graysky, showing a bar chart of before-and-after results for: no component lapped; heatsink lapped, IHS stock; heatsink stock, IHS lapped; and both surfaces lapped.

While I could easily see that the 5C degree improvement for just lapping the heatsink base matches my own experience with the B3 stepping, I was stunned to see the improvement added by lapping the IHS down to bare copper. I have one processor with the IHS lapped, but it is not lapped to remove all the nickel-plating as was done by Graysky. I suspect that removing the nickel-plating will noticeably improve the temperatures over simply having a flat IHS surface, since Nickel just doesn't have the thermal conductivity of Copper.

The rest of it, as I may have said, is in case-design, case-modding-improvement, fan-choice and deployment, and even just a willingness to build carefully-fitted ducts so that air is pulled over the motherboard and out the case, and pulled through the CPU cooler and out the case.

All of these considerations move temperatures like the combatants moved their trenches in World War I: each improvement is a hard-earned and incremental gain. As I said, the diamond-based TIM (any significantly better than JetArt CK4800) is worth 2 to 3C. The lapping can be worth 5 to 10C, depending on application to the heatsink base or both surfaces. The ducting can be worth another 5 to 10C, but even if the gain is less than 5C degrees for the CPU, it seriously will improve the temperatures of the chipset and graphics card if done properly -- CPU cooling, by then, may already be "most-efficient." But chipset temperatures apparently have a strong influence on stability, and a well-cooled, well-exhausted VGA card reduces all temperatures within the case.

So you can spend a lot of time and even a little money on a 10C+ improvement in temperatures, or you can migrate to water-cooling. WC then becomes a matter of preference, cost, complexity and desired effectiveness, but it can also lead to a sense of false confidence with CPU cores below 50C at load while the VCORE has been run up to 1.46V or higher.

 

[LOUISSSSS]

Originally posted by: laofu
My q6600 g0 core temps are
58,58,52,52 for 2.4ghz @ 1.1625v
68,68,62,62 for 3.0ghz @ 1.3250v
running prime95 25.x, Room temp 29-30C, no lapping just default installation

MB: P5KE
HSF: Thermalright ultra expensive with ninja scythe fan and AS5 paste.
Graphics: XpertVision 8800gt idle 65C, crysis load 90C <-cheapest G92 i can find
RAM: 2 gig Kingston Hyperx 6400LL

My previous HSF is the Useless-Scythe-Ninja-Plus-Cut.Myself-Rev.-Bleed which gave me
65,65,55,55 @ 2.4 @ 1.1625
75,75,65,65 @ 3.0 @ 1.3 (failed prime)
I guess this HSF can only perform the same as stock HSF due to push-pin design so I went and bought TR.

Not sure which ideal temps to trust from the net...
Temps seem ok for me but I would preferred 60-65C @ 3.0....

correction: your room temp is not 30C. nor is it 29c. nor would it be 28C.

the scythe ninja is not a bad heatsink at all it came out 2 years ago and still performs pretty well for its design

u shouldn't have bought the TH u 120 e, if u didn't know how to lap a heatsink since a lot of them didn't have flat bases

 

[laofu]

Personally, I think air ventilation only affects long term running where temps unexpectedly creep up over time.

As for convex surface on TR ultra heatsink, I'm really not sure whether I should follow forums posts and lap them or not.
I expect good/intended performance out of box since that's what the extra cost are for.
I specifically bought TR ultra for it's spring screw design, not much to choose from anyway...

Depending on your motherboard, Scythe ninja can be a pain to remove unless you have strong small thin flexible fingers
Most motherboard has small heatsinks or capacitors around the processor. So given the umbrella design, it will give problems.
Avoid this ninja, it's shurikens will cut

Not that I'm disappointed with my temps, just that I was hoping to get a less than 65C max load 3.0ghz q6600 running so that it will have a 5-10C margin for any unexpected heat increase overtime.

 

[Duvie]

I am running a B0 stepping qx6700 and at 3.2ghz with 1.328v under load for 12 hours of prime95 I saw 63c at the highest....3.3ghz with 1.376v under load for 20hours of prime 67c was the highest.

So being that there has been two different steppings since then and at 3ghz you likely are still running stock voltage I think that is a bit high....

What is the rpm and cfm rating of your 120mm fan? I use a Antec tricool and at full speed which is not much more then noticeably audible in my case is 100cfm.....

Edit: those ambient room temps are similar to mine as well.....