CPU temps suddenly shot up to 80C on bootup (even in bios)

[Guest]

Hi all,

Mobo: Asus P8Z68-V PRO Z68 Socket 1155 8 Channel HD Audio ATX Motherboard
CPU: Intel Core i5 2500K 3.3GHz Socket 1155 6MB Cache Retail Boxed Processor
Heat sink fan: Arctic Cooling Freezer 7 Pro rev 2 Socket 775, 1156, 1155, 1366, AM2, AM3 Heatpipe CPU Cooler

Yesterday I was playing some games on my computer. I always monitor the temps using asus's fan xpert. In game the temps were 53C, idling my temps are 31C .

All was going well until later on when I had shut the computer down to grab some supper. When I came back and booted it up I heard some beeps from my bios. I looked up and it was a temperature overheating warning, and it asked me to go in to the bios. The bios uses the newer UFEI graphical interface. I immediately noticed the temps on the cpu bar was in the 60s and at one point at 80C. The fans rpm rate was high too, no doubt to cool the CPU temps. The temp cooled down abit and I was able to boot in to windows. I opened Fan Xpert and saw the CPU temp listed was 67C, usually its 31C. So I quickly shutdown.

Later on during another boot up I took the side off the computer case to see if the fans were working properly. All fans were working. Even with the side of the computer off the CPU temperature was still going up to 80C, so I dont think airflow issues are causing this.

A friend had me check the CPU usage via the task manager in windows 7. I did and it was between 0% and 1%. All levels looked fine for idling.

So what do people suggest I do?

Thanks in advance for any advice you can give me.

 

[HEXiT]

if the cooler is mounted with press pins. that just click into place. make sure they havent sprung loose.

 

[Bowdon]

if the cooler is mounted with press pins. that just click into place. make sure they havent sprung loose.

I checked the springs and all was ok.

I ended up cleaning the older thermal paste off the cpu surface and the cooler fan. I noticed the center part of the paste had gone, just leaving hollow paste ring. I then applied the stuff I got. Then re-fitted the fan and booted up.

The system booted ok and the temps came out a 31 C idle, which is around the place I had it before. So I booted up the neverwinter game I play and watched the temperatures.

Before all this started the temps would max out at 53. Now it seems to be maxing at 67. The fans are having to run louder to keeps the temps down.

I'm not really happy with the temps being that high. But is that normal for the processor I'm using?

Also when I bought the new paste AK-455 by Akasa, some guys said it wasnt the best paste. So maybe a better paste would give better results?

 

[HEXiT]

that akasas pase is barely better than toothpaste and is actually slightly worse that what microsoft use for its own stock paste. so yeah it aint great. but in the real world you wont bet much better off a higher end product. maybe 1-5'c
the freezer pro was a decent enough cooler that would allow up to 3-3.4 ghz on a 775 2.6ghz quad core cpu with no issue.

as for finding a bald spot in the middle of the cooler thats normal it means the center of the cooler is slightly domed to give a better contact. its worked so well its forced all the pase out of the middle with the clamping pressure helping displace it.
you will find in a few weeks/months (depending on consistency and flow rate that the new paste will likely also migrate out the center. so yeah i would be more worried if the paste had clumped in the middle.

only other things i can think of is if the heatsync isnt clogged with dust maybe 1 of the other vents is. either that or something you have recently installed has interupted the air flow, creating a hot spot in the case. in this case i would say cable managment may help clean up the turbulence by moving them out of the air flow.

lastly have you been trying to overclock? if so you may have set the voltage to high. if do load optomized defaults making sure you put all your basics back such as drive order, hpet,peg1 (enhanced precision and pci-e boot order) then save and reboot.

if you havent been overclocking but your cpu volts are on auto and they are climbing past normal it could mean your cpu is asking for more volts just to run because its started leaking electrons. this is the worst case scenario as it means the cpu is near death and unrecoverable.
like i said worste case. it would need to have been a cpu that has been heavily overclocked for a long period of time. so check your voltages with cpu-z and compare them on the intel ark for your cpu.

 

[Bowdon]

Situation solved!

I got the new fan today and as i was removing the old fan (mainly just the metal central part) and I thought I'd check the mounting frame one last time. There was a crack in the arm, right in the joint. So I ended up having to replace the mounting frame as well. Booted it up, and temps are back in to the range they were before all this started.

It's interesting because I was reading a forum thread on another site about exactly this situation. Before I knew about the mounting crack I was thinking "wow, what happened to him is exactly whats happening to me". He even thought he'd messed the paste up to. Then discovered the mounting rail crack. In his case he replaced his fan with the stock cooler one to solve his problem. In my case I bought another fan. But I have to wonder is this a design fault? That other guy had been through 2 previous arttic cooling freezer 7 rev 2 fans. It seems it cant take its own weight when the fan his going at a 50 to 60% rate.

 

[HEXiT]

doesnt surprise me. you will often find fans that ship on coolers are sub par. the frio is another instance.
yes its a good cooler but boy does the fan suck (yeah i know it should blow) anyways glad your sorted...