Cpu heats worrying

[archibold9]

Hello.
Around 6 months ago, i purchased a prebuilt computer from OverclockersUK. It came and it was great, i used it perfectly fine. Until about a week ago when gameplay on all games became really choppy and almost to the point where it was unplayable. I reinstalled my windows 7 and that problem fixed itself - something to do with cpu usage on my i5 2500k processor.
However another problem has come up. When my computer is resting at idle, and not running any programs, all 4 cores on my cpu are at around 30C which is normal. However when i boot up a game, like World of Warcraft, the temperatures rocket to about 61C. This is very unusual for my pc... So i thought, hey, my fans must be running too slowly. So i set "Smart fan control" in my bios to "Manual" and start up "easytune 6" to change my fan speeds. This made barely any difference and even running at 100%, i can BARELY hear my CPU fan. I think something is wrong there, also.

The only thing i have done which could have caused this is, i overclocked to 3.6ghz using "Easytune 6" by Gigabyte for my motherboard. Maybe that program changed my voltage too high or something? I tried to reset back to default and it went back to 3.3ghz but the temperature problem still hasnt fixed itself.

Here is a CPUZ and Core temp screencap:

1) How do i fix my fan?
2) How do i stop the insane temperatures?

Thank you for any help given,

Tom.

 

[DryCreamer]

61C is actually a 'safe' temperature for a CPU. It's not really dangerous until it gets 85C+ though anything over 70C is generally considered really HOT. The CPU will begin to throttle at about 90-95C (slow down) so that it will bring the heat back in check.

What were the temps before they 'began' to spike? In the 40s under load? Could it be something as simple as when summer hit, the higher room temps have caused an increase?

I don't know where you live, but ambient room temp can make a BIG difference (by as much as 10 degrees!!) because if the air coming into the case is hotter it will have less impact cooling the heatsinks down.

I don't know much about fan and such, other than if its running, most stock Intel fans don't spin to fast or loud because OEM's like to have nice quite PC's for their customers.

Dry

 

[archibold9]

Haha don't think its anything to do with "Summer temperatures" as i live in north England. Before these spikes the temps never went above 40 unless i was stress testing it. Hmm, still kind of weird that when i change my fan speed to 100% it barely makes any noise. I'll try lowering my cpu voltage and see if that has any effect. Thanks for your reply.

 

[mace200200]

Unless the fan in the heatsink is dying, I wouldn't game on a stock heatsink anyway.

 

[airsoftsoldrecn9]

You might find speedfan (www.almico.com/speedfan.php) of interest to you for direct control of your fans using I2C or SMbus. Is the fan difficult to turn? If so a bath in mineral oil will lubricate the bearings for you (you can even run the fan in the bath for a few hours if you have a 9 - 12V power source (~1A should do)). Remove it, let it sit on a paper towel for a while then wipe it completely clean. I guarantee it will work like you just received it from the factory. You can also check that your thermal compound is sufficient and the heatsink is properly mounted on the IHS (cpu).

 

[archibold9]

Tried speedfan. When i set "Software controlled" the cpu fan completely stops and the light goes off 😛. Are you suggesting that i just throw my fan into a bath and it will clean it or do i need specifically mineral oil? If i don't run it and wash it in normal water, let it dry off and put it back in, will it be okay?

 

[jay_nar2012]

Thats a bad idea, on the fan there should be a sticker and under the sticker there should be the end of the shaft with a little washer, put some lube oil on that area, put only 2-3 drops and don't use WD40, use proper motor lube .....
And spin the fan a little...

 

[airsoftsoldrecn9]

Speedfan:
So I take it speedfan is what you want or no? There are numerous settings in there you can play with to change the PWM; which effectively sends a pulsed voltage to your fan. And yes you can set it to software control and it will use thermal diodes and thermocouples in your motherboard to determine temperature and adjust your fan speed based on your settings.

Your fan itself:
You can clean it with water although the mineral oil will actually adhere to the bearing surfaces (water will eventually evaporate after a short time). Yes make sure it is dry or you will burn out the commutator (or motor controller if it is brushless). Mineral oil is non-conducting fluid so you will not have this problem.

 

[archibold9]

As i said in my other post, i've tried speedfan but i can't seem to get it working. Just stops my fan from spinning :/ i'll clean my fan out. Thanks for all the help

 

[airsoftsoldrecn9]

Can you adjust the speed manually with speedfan without software control? Would you mind posting some screenshots of settings on your advanced page, I can probably help you configure it if you would like to try?

You can use motor oil too (or lithium grease) if your nervous but just be careful not to break the split ring clip that holds the shaft in place.