View Full Version : Whats wrong with my pc?

02-13-08, 04:35 AM
Ok before i start off i think i better list my spec's:

Power Supply: Coolmaster 620W Sli-Ready
Processor: Intel Core 2 Quad Q6600 2.4Ghz
Motherboard: Inno3D nForce 680i Sli
Graphics: Inno3D Geforce 8800 GTS 512MB
Memory: Corsair 2GB 800MHZ

Right, i was playing CS;Source for about 5 minutes, just logged onto a server then suddenly, dun! Screen went blank nothing, no sound, no respond, nothing just a plane, blank screen totally. i had to crash my pc and start it back up normally.

Now i keep getting these crashes at certain times on like COD4 except when i was on COD4 my screen went blank and couldnt find a source like the GPU had shut down.

I recently replaced my card from a FAULTY XFX 8800 GT to this NON-OC'D 8800 GTS 512MB

So that should NOT overheat with normal temps, my case is definatly not hot and is kept cool inside i tried exhaust fans, i replaced all my case fans to more powerful ones.

Now all i can track this down to is my CPU is overheating or faulty memory.
Now, when the screen went blank it was like a blank picture on the pc was OVER It, the screen didnt go off completely like looking for a source between digital and analogue like COD4.

On CS;Source im getting an average 155 FPS and i pushed up all the AA to highest 16X, Could this cause any issues?

I really need an idea and help with this pc.


02-13-08, 05:09 AM
Upping AA shouldn't give you problems. Gonna need more info on your rig. Memory timings, OS, etc. I see your not OCing so that's not the problem. I would use Everest to double check all your temps, too. I assume this isn't a newly built rig and it's been OK until recently?

EDIT: Oh, and what case and how well ventilated is it?

02-13-08, 06:02 AM
No sound? Rules out monitor.
Switched GPU? Rules out bad video card.

Most likely CPU or RAM. Highly doubtful it's PSU related. I'm leaning towards a CPU problem. Like Revs said, more info. needed.

02-13-08, 06:48 AM
Windows Vista Home Premium - OS
Memory Timings are CL5 i think, CL4 or 5 but im pretty sure its 5 ill have to double check later.

I use NZXT Apollo Case. with

Rear Exhaust Fan
Side Fan Intake Air
Front Fan Intake Air

Also my CPU Fan looks like its streaming half the time, like going slow you know when it looks like its going backwards? but it looks as if its going very slow, i messed with ntune recently and lowerd the cpu fan to 90% then it looks like it was moving perfectly in a circle, then i did 100% and it looked as if it was slowing down like streaming slowly round and round.

Is this an optical illusion?

Also i did do that core temp program recently and it said idle temps were about 50c max, so im guessing load temps must be 70c max?

Ok im running Core temp now, just finished playing UT3, all cores are at 50c right now, does this core temp program monitor temperatures btw? i could monitor whilst in-game ill have a look at the program now and report back.

02-13-08, 06:54 AM
Ok sorry for double reply but here are the temperatures logged:

Max Temp Whilst In-game:
79c Reached (So say 80c Max for whilst loading UT3 Mission etc)

During game it went to about 75c whilst playing each core.

So what you say? Time for a new heatsink and fan, if so recommend me one for up to about 50 pounds max and ill order it.

Heres the temp log file btw:

Please note these temps were just whilst loading and playing game for a couple of seconds / mins.

02-13-08, 06:57 AM
Perhaps you messed up a bit too much with nTune... I have had bad experience with nTune.

Try to de-install nTune and see, if it persists it will be either memory or CPU as they previous posters said.


02-13-08, 07:09 AM
Iv'e reinstalled my whole pc since nTune as it did cause me problems too well it is in beta still (6.0) but the problems still are there with the stream etc.

02-13-08, 07:23 AM
First of all, uninstall nTune and use your BIOS for setting the fan speeds (set the CPU speed to 100%). Even with a stock Intel cooler those temps are too high. The max allowed temp on a Q6600 G0 CPU is 71*C and about 62*C on an older (non G0) CPU.


Everest is the best program for temp monitoring. It'll tell you the temp from any and all sensors in your PC. You could really do with doing a load test. Download this program...


..it's a good, easy to use CPU tester. If your temps go much over 70*C while running the test, stop the test and look in to what's causing the CPU to get so hot. It does sound like a CPU overheat problem to me.

What cooler are you using and are you sure it's pasted propperly?

02-13-08, 07:38 AM
I have some genuine intel thermal paste i bought of ebay, should i remove the paste and apply the one i got off ebay, maybe its better? also im gonna try repositioning the cpu, also that everest theres different editions im confused on which one i need?

02-13-08, 07:47 AM
Get whichever one is free. I think it's the 'lite' version. But 1st you really need to go in to your BIOS and make sure you CPU fan is turned up. You may well be damaging it if it's overheating, as it sounds like it is.

Also, get some Arctic Silver 5 thermal paste. Most PC shops will have it. Apply it as described on their website. Getting a good paste will help, but applying it correctly is an absolute must.

What cooler is it?

02-13-08, 08:20 AM
Its set to automatic control in the bios, i use the default cooler but im looking at the Artic Pro cooler on ebuyer.com with about 50 reviews it has and i think all positive, so i might try out that cooler only for 20 pounds and looks well good and has Rotation for the fan so you can point the fan towards the front of the case etc.

Shall i set the fan to Manual and 100% in the bios and try that?, automatic seems fine though really.


02-13-08, 11:05 AM
I just played crysis for half an hour and it crashed again but this time when it crashed.

Its DEFINATLY the CPU now, the graphics card stays active because the screen has SOURCE it can find a connection to the graphics card otherwise the bluelight would flash on my screen attempting to find a source like my old GT.

Also i think i need to reconsider placing my exhaust fan in again as the heat coming from the pc of just playing is like a heater! really hot so i need to cool that down more.

And i did a memory test, windows vista one and no problems found with that.

Ill buy a new heatsink and fan.

Thanks guys anyways but im 100% sure my cpu is overheating, as when i turned on my pc the heat for it was 70c after.

Didn't someone say at 71c it has an auto shut-off?

Thanks anyways

02-13-08, 11:45 AM
71*C is the 'safe' limit. 100*C and it'll start to throttle down. Some mobos will shut the PC down or give a warning at a chosen temp, but not all. Try running the PC with the side off and a fan blowing the air in. A stock cooler will do as long as you're not OCing and your case a reasonable air flow. If it's still not right, don't keep using it until you've sorted the problem. You don't wanna have to be buying a new PC do you?!?

02-13-08, 12:11 PM
Hmm i could try that and play crysis.
Hey i just had a thought, can drivers cause a problem like this, im using the 169.25 whql drivers but im just giving it a thought if the whole pc locks up its like a BSOD is ment to show but it didn't just a blank black screen?

Im not sure what can be causing this problem i have all fans on 100%, i might reconnect the exhaust fan to the pc tonight, that helps with blowing out hot air.

Infact, im going to it right now, worth to use it i only took it out when i got my new GPU because i thought i wouldnt need it but really, tbh it did a hell of a great job.

Anyways ill keep you reporting with taking the side off.


02-13-08, 12:43 PM
The rear fan os probably the most important fan in any PC. It moves the most air through the case.

02-13-08, 01:06 PM
Ok thats why i got a more powerful one and it sucks out a hell of a load.
Btw; i still cannot find everest theres only corporate and ultimate on the first site on google but ill keep looking

02-13-08, 04:42 PM
All working fine now, replaced the cpu with intel genuine paste and load temperates are average 40c now, is this better? but im still thinking of the artic silver 5 paste.

But in games the highest temp it went to for me was 55c in crysis so far!
So im pleased at the moment and going to keep checking the temperates over the next week or so.


02-13-08, 04:54 PM

Glad it's working better for ya :)

02-13-08, 05:08 PM

Glad it's working better for ya :)

Lmao you won't believe this, i think the heatsink was definaltly off the cpu.

According to the bios temperates dropped from 73c to 45c, jesus christ, was i really frying the thing and the bios temps wasnt false?

02-13-08, 05:15 PM
Saved by Intel CPU Throttling :D

Silly lad, lol :rolleyes:

02-13-08, 05:26 PM
Throttling as in slowing down the cpu? i guess, thats proberly why my pc loading times were slow rofl.

02-13-08, 07:37 PM
Lmao you won't believe this, i think the heatsink was definaltly off the cpu.

According to the bios temperates dropped from 73c to 45c, jesus christ, was i really frying the thing and the bios temps wasnt false?
Yeah, that'll do it! :rofl At least you didn't burn up the CPU.

02-14-08, 04:18 AM
Yeah, that'll do it! :rofl At least you didn't burn up the CPU.

Yeah, i think it needs to be abit hotter to actually burn it so i was proberly just on the safe but in games.

Thx again guys btw all working fine now ;p

02-14-08, 05:57 AM
Get the Arctic Cooling MX-2 thermal compound. It's better than AS5.