Overclocking

[John 'twosheds' McDonald]

Link back to earlier discussions here:-

viewtopic.php?f=38&t=1641

Paul, acquired Everest Ultimate and it shows me the following temperatures:-

MB 42C
CPU 17C
Core 1 55C
Core 2 54C
Core 3 52C
Core 4 52C
GPU 56C
250Gb HDU 36C
500Gb HDU 40C

How do these compare to your values - I am concerned that I need to address some serious "running hot" issues.

Thanks,

John

[Paul LS]

Mine are much lower.... when idling hotest is 34C. I will go turn it on and leave it running for a while and get some readings as per what you have collected.

[Paul LS]

By the way if you go to Tools, System Stability Test... what values do the core temperatures reach after a while with all cores running at 100%?

[John 'twosheds' McDonald]

OK Paul, figures as follows after 5 minutes:-

Core 1 - 68
Core 2 - 68
Core 3 - 65
Core 4 - 65
MB - 44
CPU - 29
HDU - 38

[Paul LS]

One thing is the tempertaure of your MB... 42-44C that is hot which implies the inside of your case is hot... bring this down and the other temps will follow. Try removing one side of the case.

Mine are:
MB: 29
Core 1: 36
Core 2: 32
Core 3: 36
Core 4: 30

Note my MB is much cooler than yours.

Also does your CPU fan have speed control.... I have set mine to run flat out all the time.

[John 'twosheds' McDonald]

Hi Paul,

Just a note (from original thread) to say that I am hoping that the thermal paste that I have ordered will solve the problem as I am putting the cause (for now) down to inadequeate thermal contact/conduction between the chip and the cooler

[John 'twosheds' McDonald]

Case side removed as I write. I am also going to unstall more case fans tomorrow.

[John 'twosheds' McDonald]

Can someone tell me what 'unstall' means?

[Paul LS]

"Unstall"... some cases have an alarm for when the side is removed... maybe this??? Any other clues?

[John 'twosheds' McDonald]

Got it. Unstall is French for a stable for stallions, as distinct from Unestall which is French for a stable for mares (or geldings ).

Side off PC and readings as follows:-

Core 1 - 63 (-5)
Core 2 - 63 (-5)
Core 3 - 60 (-5)
Core 4 - 60 (-5)
MB - 47 (+2)
CPU - 47 (+18)
HDU - 36 (-2)

So indications are more case cooling and check that thermal paste.

Paste has been ordered and I'll fit some more 120mm case fans tomorrow. Once I've sorted out the thermal paste I'll re-run the tests and post back. Thanks for the help, Paul.

PS My local PC shop techie reckons that the Q6600 is good for 3.6Ghz. I think that I'll settle on 3.0Ghz provided that I can crack this heat problem.

[Paul LS]

Be carefull removing the fan. A couple of times when I have removed fans the CPU has come out as well... the paste has quite a suction. Just be carefull to lift it straight up otherwise you could accidentally bend the CPU pins as you remove it. I have done that before... took me an age to straighten them all... luckly it still worked afterwards.

[John 'twosheds' McDonald]

Warning noted.

Watch this space for an update (but probably not for a couple of days as the thermal paste is (as they say) 'in the post'!

[Bob]

John,

Here's hoping your new thermal compound will make a difference, but reasonably I don't expect the compound to be your big problem. From your temperature readings, it sounds much more likely that you have poor air flow in the case. What type of case are you using? Is it one of the "thermally advantaged chassis" designs?

Adding fans will probably help, but also check that you aren't blocking the air flow with ribbon cables or some other obstruction. Check that the cpu cooling fan is blowing the air in the correct direction also. The thermally advantaged chassis type cases aren't designed to run with the cover off. That can even make the air flow worse in some cases.

Let us know what your results are with the changes.

[John 'twosheds' McDonald]

OK. Thermal compound received and applied - in doing this I also discovered that one of the fastenings attaching the heatsink to the MB had come loose so there was an air gap/poor contact between the heatsink and the CPU which will have accounted for the high temperatures.

I have run the 95Prime stress test again and the figures below are PC idling, PC after 5 mins stress test, PC after 10 mins stress test: CPU fan is at max.

CPU Temp - 29, 35, 37
MB Temp - 40, 41, 41
Core 1 - 45, 55, 54
Core 2 - 45, 55, 54
Core 3 - 47, 57, 55
Core 4 - 46, 57, 57
HDU1 - 30, 31, 31
HDU2 - 33, 33, 33

[John 'twosheds' McDonald]

Just an afterthought. I have found a couple of reports about the Asus P5N32E MB that I am using - it apparently runs very hot!

The review here:-

http://www.neoseeker.com/Articles/Hardw ... li/12.html

says-

"I can't believe how hot Asus' 650i+570 chipset implementation runs! As much as I like Asus' heatpipe chipset coolers, especially that they are quieter without a small high speed chipset fan, this is one case where a chipset fan would be welcome and perhaps even mandatory. The heatsinks can be touched, but you won't keep your fingers on them - and that is at stock voltages! Heck, I am sure I could have gotten the FSB speed higher had I been willing to risk frying the board by boosting the north and south bridge voltages higher - this is something that I do on a regular basis on other boards but the heat output here is so much higher than I expected that I didn't dare try."

So I am going to try a couple of Antec Spot Cool fans to see if this helps lower the MB temperature.

http://www.antec.com/uk/productDetails.php?ProdID=75018