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Computer restarts when playing games? Radeon HD 6850

Last response: in Components
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June 30, 2012 3:30:38 PM

Hi everyone,

Yesterday I replaced my old nvidia graphics card with a Sapphire Radeon HD 6850, and installed it. The computer was quite dusty but was not sure how to dust it, as might create static so did not remove any dust yet. I installed the graphics card successfully and plugged in the 6 pin power connector and closed up. The computer booted up properly and the new graphics card was detected, and I installed the new drivers. Then when I tried to go into steam and boot up any game such as tf2, my computer turned off with no error message. This happens randomly, and the computer seems to be working fine when not playing games, but this is a massive problem as I bought the card to play better games. My CPU idles around 28-32C and the graphics card is around 45-50C so I do not think it is an overheat problem. While I only have a 500w PSU, this may be the problem while i thought it would be fine as it was the minimum requirement for the HD 6850.

Heres my specs:
MoBo: Gigabyte ga-880gm-usb3
Processor: AMD FX/Bulldozer 6100 6 Core
Graphics: Sapphire Radeon HD 6850 (newly installed)
16 GB GDDR3 Ram
Windows 7
500w Power Supply
1TB 7200 RPM HD

Is this is a PSU issue? A possibility is that I can buy a new PSU, while needs to be cheap as spent most most of my budget on the GPU and my new monitor.

Sorry if this is in the wrong section but I wasn't sure which one to put it in

Thanks everyone
a b ) Power supply
a b U Graphics card
June 30, 2012 5:27:45 PM

By all means this sure sounds like a PSU Issue. Go get yourself another, good, PSU asap.
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June 30, 2012 5:37:29 PM

abekl said:
By all means this sure sounds like a PSU Issue. Go get yourself another, good, PSU asap.


Thanks for the reply, I was planning to get a new PSU

My PSU can seem to run fine on my old graphics card, and has done for 3 months while I was sure that it could run my new one, is it faulty?

Also is this one okay? http://www.ebuyer.com/159708-cit-750w-dual-12v-rail-12c...
a b ) Power supply
a b U Graphics card
June 30, 2012 5:58:07 PM

Ick. Stay away from CIT. Stick with Corsair, Antec, Seasonic, XFX. Plan to spend 45 at a minimum.
a b ) Power supply
a b U Graphics card
June 30, 2012 6:06:12 PM

That's a fine PSU. The 600w will buy you some additional headroom. Nice to have, but not necessary.
June 30, 2012 6:10:06 PM

abekl said:
That's a fine PSU. The 600w will buy you some additional headroom. Nice to have, but not necessary.


Okay thanks ill pick up a Corsair CX600, is it hard to install? i have never replaced a PSU before, do I just replace all the cables with the new one?
a b ) Power supply
a b U Graphics card
June 30, 2012 6:14:37 PM

Replacing the PSU is a messy tangled and at time frustrating job (But hey, someone's got to do it, right).
Just go slow, make note of how things are connected as you disassemble, and you'll be just fine.
June 30, 2012 6:26:11 PM

abekl said:
Replacing the PSU is a messy tangled and at time frustrating job (But hey, someone's got to do it, right).
Just go slow, make note of how things are connected as you disassemble, and you'll be just fine.


Okay thanks! Will this run it? I might just pop into the store and pick one up quickly

http://www.pcworld.co.uk/gbuk/ocz-zs750w-uk-zx-series-a...
a b ) Power supply
a b U Graphics card
June 30, 2012 7:25:13 PM

Yes, OCZ makes some very good power supplies. This isn't one of their better ones, however. The ZS750 also lacks Over Power Protection and Over Temperature Protection.

If you erally want to get your hands on one now and can't wait, then go ahead and get this one. But, I recommend that you wait for the corsair.
!