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Computer Crashes when play any 3d games

Last response: in Graphics & Displays
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August 25, 2011 2:57:12 AM

hello,Everytime i play a 3d game my pc crashes my tower lights stay on but my mouse/keyboard and screen stops working i look it up everybody says it the screen but i tryed it on another screen still does it,tryed the onboard and still does it, i dont know what to do with this machine :sarcastic:  :pfff:  :fou: 


mobo:BoiStar TA790GXE 128M
CPU:amd phenom ii x4 955
Videocard:ATI Radeon HD 4870 X2
Memory (RAM): G-Skillz 4.00 GB
Screen:samsung Syncemaster 2493hm
windows 7 ult
a b U Graphics card
August 25, 2011 6:22:12 AM

sometimes a weaker PSU can be overloaded due to the GPU's increased power demands which occur only during gaming...
August 25, 2011 6:51:31 AM

mdd1963 said:
sometimes a weaker PSU can be overloaded due to the GPU's increased power demands which occur only during gaming...


Agreed, we are going to have to know the PSU.

Also are you overclocking at all? Have you checked temps of both the CPU and GPU?
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August 25, 2011 8:48:30 PM

Forgot to mention I have a bfg 1000watt psu it worked fine with my old mobo witch was a Biostar GF8200C M2+ and the 4870x2
and no overclocking,


temps:
CPU:27c
Gpu: 39

when i play games it only goes up by 10-15c

:??: 
a b U Graphics card
August 26, 2011 12:02:12 AM

IF these problems only cropped up after a MB swap...

Clean install, latest chipset /GPU drivers, MB BIOS settings, and, if probs still persist:

Test video card in another machine, if possible....
Try another video card and/or PSU in your system

Unfortunately, if none of these options points to a bad component, the possibilities of a bad MB can't be discounted...
August 26, 2011 1:27:59 AM

Updated the bios so far so good will post back later with updates thanx for the help
August 27, 2011 1:48:55 AM

After the bios update been play for a few hrs and nothing. thanx for the help guys
!