Monitor shuts off while playing games

[GearSwitch]

So I RMAD my 8800 GT and put it back in last night. After 10 minutes of playing any 3D intensive game my game will freeze for 2 seconds and then my monitor shuts off. However i can still hear game sounds after the monitor shuts off. The only way to get it to come back is to restart my computer. When putting my old video card in it works perfectly fine.....and my old video card requires 25 more watts than the 8800GT, so that leads me to think its not my PSU, but I suppose it still could be. I have an Antec Truepower 2.0 550W PSU. I am also thinking it may be a heat problem with the 8800GT because I set the fan speed to 100% and the load temps after about 5 minutes were about 60-65c, and I imagine they were climbing. And my previous problem seems to be fixed by BFG but I now have this new problem. The 8800 gt is not overclocked at all. I have my X2 4200+ Oced to 2.7...and have 2 gigs of OCZ ram, Seagate Barracuda 160 gig HDD, A PCI USB card, a liquid cooling system and 2 case fans. I guess its possible that my PSU is being strained but when I put my 7900 GTO back in my comp(which requires more watts than the 8800GT) I have no problems. What do you guys think? I am using Windows Vista Ultimate. Any help would be appreciated because I am currently very frustrated...

 

[Techdog]

My guess its the temp of your monitor. If you put your hand on is it warm or really hot?

 

[krnmastersgt]

Why would the monitor be the problem if he didn't see it turning off when he used his 7900 GTO ?
And so let me get this straight, your monitor actually turns off but the computer is running or do you mean the signal from the card to the monitor dies and you can't get it back up? Also, does the 7900 GTO require a 6 pin power connector? Because even if the PSU is giving enough power to the mobo, if the power going to the GPU through the 6 pins isn't high enough once you stress the gpu it'll just die from lack of power. I suggest checking the power connections to the 8800.

 

[robisbell]

manually test the PSU with a multimeter.

 

[Sir Anonymous]

This sounds very much like my current problem, only my computer has completely crashed as of late. How often have you cleaned out your computer of dust and other stuff?

 

[Sir Anonymous]

And just out of curiousity, how long have you had your motherboard and CPU?

 

[krnmastersgt]

Originally posted by: Sir Anonymous
This sounds very much like my current problem, only my computer has completely crashed as of late. How often have you cleaned out your computer of dust and other stuff?

You could just get fabric softening sheets or something similar to act as a filter for dust and install them behind or in front of the fans on your system you know.

 

[oynaz]

Have you checked your Power Savings settings? Sounds like the system thinks you are not using the computer and are turning the monitor off to save energy. Try turning off every bit of power saving and see.

 

[GearSwitch]

Well I put the card in a different computer and it locked up in 10 mins......lol thats 2 bad cards in a row However I underclocked the memory to 930 and it is working just fine now......I played crysis in DX10 for 2 hours and COD4 for 2 hours with no problems.I dont want to go through the RMA process another time so I will leave it. Also I started the memory at 900 and went from there, I think i can squeeze 950 out of it......but still.....I paid for a memory clock of 975 not 930...

 

[rasczak]

Originally posted by: GearSwitch
Well I put the card in a different computer and it locked up in 10 mins......lol thats 2 bad cards in a row However I underclocked the memory to 930 and it is working just fine now......I played crysis in DX10 for 2 hours and COD4 for 2 hours with no problems.I dont want to go through the RMA process another time so I will leave it. Also I started the memory at 900 and went from there, I think i can squeeze 950 out of it......but still.....I paid for a memory clock of 975 not 930...

you may want to check the temps on your card while in game to see if the temps spike. then replace the gpu hsf if the card runs really hot. if not then you just may have some bad luck with video cards.

 

[robisbell]

I'd write a lengthy letter to them saying they sent you a card that can not even perform at it's stock speed.

also, did you ever do as i asked, still would like those results to be sure.