Hi I have been having this problem for some time now which all started halfway through last year very shortly after i upgraded to windows 7.
Occationaly when in a game or some other 3D task my monitor will drop signal and the graphics card will dile down the fans asif i had just alt tabbed away from a 3D application. So far i have tried multiples installs of Vista and Win7 with no luck yeh sometime the problem goes away for example i have been playing sc2 (having previously given up because of said problem) solid for the past 3 weeks and not a porblem yet today Black screen after loading to the title page and the second time even before i got to that.
This also used to happen in Napoleon Total war but only on the loading screens or iff a loading screen had finished at it was loading the campaign map.
Sometimes if i am on Skype and this happens i can still chat away to my friends but sometimes the pc completley hangs or sound crashes, restarting is the only solution.
I have tried swapping out most of the components with no effect the problem still persits, GPU, monitor, Duel Screens, DVI lead, RAM etc
the odd part is that it seems to come at random but once i get one or 2 back screens then it starts happening more frequently till its all the time and useualy a fresh install of windows or a system restore sorts the problem out for a while.
I though it may have been my old WDraptor which died a while after this problem started occuring but after dissconnecting it the problem persits,
aslo i origionaly had problems getting the ATI drivers to install on win7 but believe i have that sorted now and i am at the lattest version.
SYSTEM:
Foxxcon Black Ops LG775
Intel Q6600 @ 2.4ghz
4 GB OCZ DDR3 1333mhz
2x Radeon HD2900XT 1GB
ThermaltakeToughpower 1000w PSU
I have been hunting arround for a very long time for a solution to this if anybody has any ideas i would greatly welcome some sound advice
Thanks
Chris
Occationaly when in a game or some other 3D task my monitor will drop signal and the graphics card will dile down the fans asif i had just alt tabbed away from a 3D application. So far i have tried multiples installs of Vista and Win7 with no luck yeh sometime the problem goes away for example i have been playing sc2 (having previously given up because of said problem) solid for the past 3 weeks and not a porblem yet today Black screen after loading to the title page and the second time even before i got to that.
This also used to happen in Napoleon Total war but only on the loading screens or iff a loading screen had finished at it was loading the campaign map.
Sometimes if i am on Skype and this happens i can still chat away to my friends but sometimes the pc completley hangs or sound crashes, restarting is the only solution.
I have tried swapping out most of the components with no effect the problem still persits, GPU, monitor, Duel Screens, DVI lead, RAM etc
the odd part is that it seems to come at random but once i get one or 2 back screens then it starts happening more frequently till its all the time and useualy a fresh install of windows or a system restore sorts the problem out for a while.
I though it may have been my old WDraptor which died a while after this problem started occuring but after dissconnecting it the problem persits,
aslo i origionaly had problems getting the ATI drivers to install on win7 but believe i have that sorted now and i am at the lattest version.
SYSTEM:
Foxxcon Black Ops LG775
Intel Q6600 @ 2.4ghz
4 GB OCZ DDR3 1333mhz
2x Radeon HD2900XT 1GB
ThermaltakeToughpower 1000w PSU
I have been hunting arround for a very long time for a solution to this if anybody has any ideas i would greatly welcome some sound advice

Thanks
Chris