Problem: Furmark crashed new build every time

TapewormArmy

TapewormArmy

TapewormArmy

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Joined
22 Feb 2011
Posts
10
Hello,

Hoping you chaps can help. I built this system on a budget back in December: -

-AMD phenom II x4 955
-CPU cooling: Arctic Freezer 7 pro rev 2
-Gigabyte MA77OT-UD3 mobo
-Gigabyte GTX 460 OC
- 1TB SATA II HD
- Corsair 4Gb XMS RAM
- Powercool 550W "Mod eXtreme" PSU now upgraded to Antec quattro 850W!!!!! problem is persisting with a decent PSU
- Windows 7 premium


All went very well and for around £440 quid (before buying the new PSU) was very happy. However wasn't convinced it was performing as it should as would reset itself (no blue screen just system restart) at key points of games and during max load e.g in Crysis for example on certain levels

Anyway I went about benchmarking with the hope of overclocking. Anyway the main point I'm coming to is that I fail (pc resets itself) Furmark stability tests (also Kombuster) and always have. I never did anything about this as it wasn't really a problem in the day to day. But now I wish to overclock and demonstrate stability it is a problem.


The longest my set-up has survived Furmark was 10mins but an average of 3 mins normally kills me. GPU Temp only reaches 70-75 degrees C before the pc resets. So im pretty happy its not the temp. After some reading online I started focusing on the PSU as the source of my problem - the very budget Powercool Mod eXtreme 550W modular. Now then I've been looking into the voltage drop that occurs during the loading and drop in voltage when starting and running Furmark (before the inevitable pc crash) i googled this and actually used a digital multimeter rather than trusting any software reading, as per this instructable:

http://www.brighthub.com/computing/h...les/46960.aspx

However I recieved some advice on this site that my old PSU could be to blame however upgrading this has not fixed the problem.

I also went to Gigabytes website to download most recent drivers still no joy!!! Furmark still resets my system.


My questions to you are
-Am i barking up the wrong tree completely?
Recently installed most recent GTX 460 drivers 266.58 with no difference.
Checked PSU lead into the GTX 460 were properly inserted also didnt change anything.
-Do you think the GPU could be faulty?
-What else can i do to investigate this problem???
-Want to try avoiding flashing a new BIOS version before exploring other avenues

Would memory tests be any good? The PC never blue screens or crashes until the GPU is harassed at 100%!

Any help most appreciated please guys
 
This happens with no overclocks. everything at stock.

How do you check logs? is it a windows function? I've got a program that looks at dump logs but it doesn't seem to post a log everytime it crashes. I reinstalled windows today so all the previous logs this program found were gone.

Checked the power connectors on the gpu. but it wouldnt hurt to check again.

Just had a brainstorm before reading your reply. Temperatures!! i carefully monitor CPU and GPU temps and they are always fine. But thought it would be a good idea to take the side of the case off and point the biggest fan i had straight at the motherboard as components on the mobo also heat up under load. So i did this and alas just survived 15 minutes of furmark!!! with no crashes. Now the problem is my case doesnt have anywhere to mount a fan in this position! Maybe time for a new case or some diy fan positioning.

Could you tell me more on how to check the logs as to why it restarts? how do i go about that?
 
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