Graphics Card fault

[Guest]

Hi Everyone

 

I seam to have an issue with one of my graphics cards, I have two in Crossfire and they just seam to be unstable and crash every now and then, I am not sure if its a faulty card or just something I am not doing right in Crossfire so I would like some help to find out if I can get this all working.

 

My cards are two HD7850s and every now and then while gaming the screen will just go blank and a horrible stuttering noise will come from speakers the only fix being to hard power off the PC and power it back on, there is no information in the event viewer about it, does anyone have any ideas what the problem is?

 

The cards work fine on their own and my PSU is 700W so should be more than enough, I have also plugged in my motherboards additional PCI power connector.

[felixbearpig]

are they overclocked?

if not then i would say cross fire - test each card individually

[Guest]

Ok thanks neither cards are overclocked.

 

Well I know GPU1 works fine as it ran solo for a couple of weeks before I put the second card in, I will remove my first card and shift the second one up to slot 1 in a moment, if it works out fine then whats the problem? I really would like to run crossfire but there clearly would be a problem with it.

[Jimbo]

It could be your crossfire bridge, if you have another one to test it's an easy solution. :)

[Guest]

Yeah my crossfire bridge actually came from some random computer store in the town center, from what I understand it was just a spare they had lieing around from an old build and since I needed one (because Ive -Never- had an AMD card that has come with one despite all of them apparently coming with one, not sure why? o.O) I brought it very cheap.

 

I did just find interestingly enough after it crashed rebooted then crashed upon booting into Windows causing it to play the Windows 7 boot up sound about 30 times slower than usual (which was interesting and insightful) that the plug going into the GPU was actually hanging half out, whats more a few days ago I noticed the modular lead on the PSU for a graphics card was in the same situation, of course both times I have seen this I fixed it immediately, I was quite quick to actually put the system back together as I had a lot on that day and may have rushed it a bit, I guess when I cable tied it made them lose, I'm hoping that was the cause of the problem and now all connectors are home firmly it will be fixed, if not I will look into buying a new crossfire bridge, (preferably one thats not bright brown/orange)