Q9550 @ only 3.4 hitting 76c on prime95

Things change I've changed · 27 Apr 2010 at 16:35

Hello guys, I just purchased a Q9550 from MM and an 'Arctic Cooling Freezer 7 Pro Rev 2 CPU Cooler' from OcUK.

I installed the chip and fan today and I'm hitting mid seventies on prime95 at times which isn't good

, I always seem to be cursed to high temps no matter what set-up I have

Anyway I used the stock compound that was on the bottom of the heatsink but I can't imagine that being the cause of such high temps, my rooms ambient temp is 26c which might be the cause?

The vid on the Q9550 is 1.2625v, I'm running the chip @ 3.4ghz 1.248v.

Any suggestions?

PaulyD · 27 Apr 2010 at 16:41

You mean 1.24v on the voltage correct?

Could be a bad mount, have you checked contact? Also what temps do you get at stock?

26c is also getting towards the toasty side for your room too

Torquar · 27 Apr 2010 at 16:42

Maybe I'm reading that wrong, but isnt 2.4v massively overvolted? I run mine at 1.3.

Things change I've changed · 27 Apr 2010 at 16:49

PaulyD said:
You mean 1.24v on the voltage correct?

Could be a bad mount, have you checked contact? Also what temps do you get at stock?

26c is also getting towards the toasty side for your room too

I fixed the original post, cpu-z says the chip is running @ 1.248, sorry about that, my heads a bit flustered today.

How do I check the contact?, it's certainly securely fitted if that's what you mean, I guess all I can do then is remount it and whack some AS5 on there while I'm at, the chip seems to idle around 40c-42c in windows.

What's the best way to apply compound to a quad core ?

Things change I've changed · 27 Apr 2010 at 18:59

I've just remounted and applied AS5 as per instruction on their website, just ran prime95 and one of the cores hit 79c this time around, I'm tired and fed up tbh, I wish I'd never got this chip, think I'm gonna ebay this one and whack my trusty old E6300 back in.

darren.head · 28 Apr 2010 at 22:41

Ive always found the Arctic coolers great for duals but they seem to struggle on quads. Not tried the rev 2 though.
But given the ambient temp, it may be a bit too much work for it to do? Have you tried running its fan flat out? Might make a difference.
3.4 is the highest I pushed my 9450, but my temps were in the 70s too. Waiting for my fenrir to turn up.

Rroff · 28 Apr 2010 at 22:44

I'm tempted to blame the cooler I'm a big fan of the original ACF7 pro but they are a bit hit and miss with quads at full bore.

Don't give up on the chip tho they are great just need to work out the cooling hopefully.

I'm running a Q9550 @ 3.825 w/ 1.36vcore on a modified coolermaster V8 and rarely go above 60 on IBT.

setter · 28 Apr 2010 at 23:07

Agree with above, i had an arctic freezer pro on a q6600, was ok'ish upto 3.4ghz, (1.3750 vcore), but temps were hitting 75c, replaced it with a TRUE, knocked them down to 68 on highest core, 62 on lowest iirc, eventually ended up lapping the cpu and cooler, and pushed the chip to 3.8ghz, same temps as 3.6ghz with more powerful fans, kept the same cooler for my q9550, loaded at 57-56-46-47, @3.8ghz 1.216 vcore. Still use the TRUE on my current i7 rig at 4ghz. A good cooler may cost a bit but its worth it in the long run.

iNPUt · 28 Apr 2010 at 23:18

That q9550 c1 stepping I take it? As said before I think its the freezer struggling with it.

What are the fan settings like, I know if you blast if full power it will make a hell of a racket.

Get a nice cooler with a 120mm fan on it, will be much quieter and should handle the temps better, wouldn't jump to selling it straight away.

Heres mine, running on less volts now

Things change I've changed · 28 Apr 2010 at 23:41

wow I would suck a mans willy to have temps like that !

Actually my chip is a E0 steeping would you believe, I managed to get 86c on one of my cores today but I did have the cpu at a pretty high vcore and my room gets very toasty in the day, around 26/27c.

I'm definitely going to get a better cooler next week when I get paid, quite a few people have recommended me to do so now, even with my chip @ 3ghz I'm hitting mid 60's.

With regard to the noise the new ac7's pro rev 2's are practically silent as they have a fluid dynamic bearing fan.

What fan/s are you using on your Megahalems cooler ?

iNPUt · 29 Apr 2010 at 01:25

Using a fractal design fan on it, probably could get better airflow since the top fan is extracting which is a bit silly. Think could get better temps with a decent PWM fan facing upwards, not sure my heatsink would allow it though.

The E0 chips are really good clockers on relatively low volts, I think your cooler is letting you down, hows you cases general airflow. Wouldn't sell it on just yet, with good cooling you will get a nice large overclock on it.

IBT on my current specs, normally get 50gflops but got a ton of stuff open at the moment.

Fans u cant see, 3 intakes, 2 front, 1 bottom.

edit: post 666 you probably shouldn't listen to my advice