Random Picture Loss

[Pulse]

4 Times in the last 1/2 my shuttle seems to have lost output from the graphics card, i would be sat then both screens go black and both display a "No Input Device" warning, though the system is still working as i can hear system sounds.

as mentioned at the beginning its a shuttle so only has a 350W psu powering a x2 4200, 2GB, X1900XT, 2 250GB Samsung hdd's and a dvd drive.

im thinking that its probably just going over the 350W, rated on the psu and the 1st thing to give out is the gfx as its the 1st connector and drawing the most power.

what do you guys think?

 

[Teaf]

Hmm, I'd imagine that if it were a major power issue then the system would cut out completely, although could be wrong. Could be something more simple like the VGA cable or a loose connector on either the graphics card or the monitor port.

 

[Pulse]

both monitors go off at the same time, both monitors are screwed completed into the dvi dongles and the dongles onto the cards, the monitor cables themselves are not disconnectable at the monitor end.