Odd computer freezing/overheat issue

By Sudoka ·
Well, here is the strange thing, My computer has plenty of fans. Ten inch fan in the side, a fan on the mobo itself, a fan on teh back and a fan on the front. The issue is it's still overheating (I guess). It happens a lot more while I use Windows than when I use Ubuntu.
The other odd thing is that I don't see anything that would cause this. The case is an Enermax uber-chakra case. Now I'm not very familiar with cases but I assume the more holes the better?

Now what is your suggestion on this? Should I get a new case or is there something horribly wrong with ym computer?

I am not overclocking, and my heatsink is the default intel heatsink.
if you need specs I will be happy to provide some.

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All Answers

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Well you certainly have enough power

by Slayer_ In reply to Is your 750 rated to prod ...

I may have missed this earlier. Did you say the freezing happened with your 9600? I ask because I have... frequently, gotten Dud cards from nVidia. I'd say 3 out of 5 times the card has worked out of the box for me.

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It's not about the number or size of the holes

by OH Smeg Moderator In reply to Odd computer freezing/ove ...

But in how the air flows through the case. Ideally cold air should be drawn in the front and expelled out the back where it can rise away from the case and not get sucked back in.

The cooler the incoming Air the cooler the hot parts inside will remain.

If there are restrictions to a smooth Air Flow inside the case these need to be removed and a simple airflow needs to be setup. It is pointless having heaps of Fans in all different Panels if they are all pulling air in no matter where it is coming from and irrespective to how hot it is to begin with. Under the same conditions you do not want to create Dead Spots inside the case for Air Flow and you want to prevent hot air entering the case after it has passed through it.

So have the fans set to blow into the case on the front and out the back, Sides, Top everywhere else and house the case in a position where there is a free flow of air away from the case when it comes out.

It is absolutely pointless recirculating Hot Air into the case hoping that it will somehow cool things down. Just like your car if you constantly tailgate the car in front the Radiator can not suck in cool air but only preheated air which causes your engine and associated parts to run hotter than they otherwise would. Might be great for Cold Starts in Winter but once the engine is up to Operating Temp it is designed to run at that temp without much variation to give the best economy and performance that it was designed to give.

The same with computers you do not want hot air sucked in as the air needs to be cooler than the parts that it is supposed to cool. If you preheat the air things will get hotter than they should be.

Also you may need to plug extra holes in the case that allow Air Leaks to either exit or enter the case from unwanted areas. These include dirty air full of dust and other airborne crud as well as Hot Air.

If you live in a dusty environment you also need to regularly clean out the air intakes which can and do get blocked and cut down on the ability to cool the internal parts of the computer.



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Are you sure you are overheating?

by Slayer_ In reply to Odd computer freezing/ove ...

Have you run something like SpeedFan to check if you are overheating?

Freezing tends to be caused from bad CPU, bad PSU or bad RAM. A computer will (usually) auto shutdown if it overheats. As I recall, the average overheat temp of a CPU is between 90C and 120C

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Like the others said, first thing to check is dust

by JamesRL In reply to Odd computer freezing/ove ...

Dust can get into your heatsink, fans and vents and defeat even the best designed case.

Get some canned air and clean the sucker out, then see if you still have problems.

You can often hear when a fan isn't operating correctly - so use your ears as well to see if a fan is running slow - could be dust, bearings etc.


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Maybe I should clarify.

by Sudoka In reply to Odd computer freezing/ove ...

I'm not overclocking, the ten inch fan came with the case, I guess nobody did a search on it. It's about 9 months old, I cleaned it about a month ago. Fans sound fine, mobo looks fine. It's the fact that it only does it while it's either idle, or used for a while. Most of the times it's dead when I game for about two hours straight. So I can't really tell what the heck it is. But thanks for the suggestion. I'm not sure about the heat sink upgrade though.

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According to Enermax ...

by OldER Mycroft In reply to Maybe I should clarify.

That enormous fan on the side panel of the case HAS A FAN-DIRECTION SWITCH.

Any chance the switch has been bumped and the ventilation is now going the wrong way?

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Wrong direction?

by Sudoka In reply to According to Enermax ...

Not sure which direction is right for the case to be painfully honest. Also the bottom of the fan is not directing a lot of air flow to my two graphics cards. Not sure if those are the ones causing the overheat.

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In general

by JamesRL In reply to Wrong direction?

The usual configuration is that fans in the front of the case suck cool air in, and fans in the back push warm air out.

I've had graphics cards overheat, and my cards generally have shown symptoms before they reach the stage where the software that controls the cards shuts off the computer for protection. You would usually notice some pixellation, strange colour shift etc before a thermal shutdown from a video card.


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sounds like hardware

by .Martin. In reply to Maybe I should clarify.

sounds like there is something wrong with a piece of hardware in your computer.

try testing your RAM:

otherwise, see if you can borrow some parts, and swap parts over to see if you can eliminate the problem.

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Ram is fine.

by Sudoka In reply to sounds like hardware

It shouldn't be the ram since it's relatively new. But I am thinking of getting more ram soon.

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