very high e8500 temps

racerboy59 · 5 May 2010 at 17:43

I'm trying to overclock this cpu I just bought but at stock settings and core voltage at 1.1750 bios, 1.120 in CPUZ, temperatures are reaching 67 degrees C at full load. Idle temps read around 52-53 minimum.

Should I be worried, considering I have a noctua heatsink with 2 fans either side blowing hot air out of it?

I'm using both CPUID Hardware Monitor and RealTemp for checking temps and they are both within 1-2 degree of each other.

P.S. I have taken this one up to 4.37Ghz on air, for benchmark purposes but with the higher voltage required my temps got too high for my liking. Something like 62 idle and 74 load.

Anyway i'm sure this isn't normal so I've come here to ask for ideas. I've already tried reseating the heatsink once, and reapplied the thermal paste.

Oh and if I push down on the heatsink with my hands the temperature will only drop by max 2 degrees. I tried this in a number of directions.

Devrij · 5 May 2010 at 17:50

You should be worried that you have 1.75V running through your CPU!!!! Wolfdales can degrade quickly over 1.46V so I would be worried about whether you've already caused any damage.

That chip shouldn't require more than 1.4V to hit 4.5GHz let alone 1.75! Turn off speedstep, because unless you have some SERIOUS vdroop, CPUZ is reporting the downclocked state of your cpu.

racerboy59 · 5 May 2010 at 17:53

My bad ment to say 1.1750, i'll edit the above post.

I'm open to all suggestions.

Ok right now its at 3.8Ghz and 1.25000V as shown by the BIOS, but after running prime for 10 minutes thats enough to bring my temps up to 71 degrees. WTF? Is it worth reseating the cooler a 2nd time?

MiNxYyY · 5 May 2010 at 18:06

Are you sure the cooler is making perfect contact? No broken fins or have to use stupid amount of force for it to click?

racerboy59 · 5 May 2010 at 18:10

No broken fins at all and it doesn't click by design. There are 2 screws either side that I believe bolt up to the backplate. I have tightened these screws as far as possible.

bifday2k · 5 May 2010 at 18:14

Is that core temps, or overal cpu temps, as it should'nt be that hot on the cores for that voltage even under prime.

I would deffinatly try a re-apply of the paste, and re-seating.

racerboy59 · 5 May 2010 at 18:39

lol. i think it was too much thermal. After removing and reseating again i'm getting good temps now.

Idle: Core 44, CPU 35
Load: Core 60, CPU 55

Think i'll push it a bit higher than 3.8 now.

bifday2k · 5 May 2010 at 18:42

Yeh thats far better temps, your safe upto 71c overall cpu, and 100c on the cores.

Ofcourse allways best to try and not go that high for long periods.

racerboy59 · 5 May 2010 at 19:03

Damn temps have cropped back up again! I give up.

Eclectic · 5 May 2010 at 19:18

Just have a break for ma few days, but dont let it beat you.

Buy some MX-3 and some decent TIM cleaner. Apply it as per instructions from MX-3.

Devrij · 5 May 2010 at 20:11

LOL, glad that was just a typo! Yeah that's hot alright, definately do the suggested and reseat your cooler with some mx3

racerboy59 · 5 May 2010 at 20:40

After reseating a third time I think I may finally have it at an acceptable level. Running prime now going to leave it for a couple hours and see how it goes. Thanks for all the suggestions.

racerboy59 · 6 May 2010 at 02:58

I think I may have an airflow problem. Ok now temps are within safe levels 66C core / 68C CPU after almost 2 hours continuous stress testing. I found that opening the case and having a standard room fan blow inside will drop the CPU temp by 20-22 degrees and Core temps drop by about 7-9 when at load. So i'm guessing I need some kind of cold air intake but there is nowhere to mount any extra fans. These pics show what my setup looks like at the moment. Is there anything I can do or will I need to buy another case?

bifday2k · 6 May 2010 at 03:18

racerboy59 · 6 May 2010 at 03:43

That Scythe fan looks cool, but since I have only three 5.25" bays I need to make the decision as to whether I get rid of the DVD drive or not. It hardly ever gets used, probably only for operating system installations. Despite the poor airflow characteristics I really do like my case and would be sad to see it go. It has a smart and simple look, easy tool free installation and best of all excellent noise insulation. Great for times like these when I should be revising for next day's exams.

Eclectic · 6 May 2010 at 11:44

add a hole in the side of the case and add a tasty 140mm fan? Cheapest option, just requires a little love with a dremel.

racerboy59 · 6 May 2010 at 13:27

Not so sure about that. I'll see if I can cable-tie a fan to the frame of the case, maybe that will improve things.