Gentlemen, it has been a while since my last visit here, but now I find myself again in dire need of your help. I have not been gaming on a regular basis for a couple of years, save for some occasional gunnery practice with the QMB.
Now, the other day I was having a session of just that when, alas, my trusty old 9800 Pro card, which had served me so well since the dinosaurs walked the earth, suddenly gave up and passed away peacefully, old and full of days. Fortunately, I had an old card that I could use for surfing and using office programs.
So, I went shopping for a new card but since I'm still running AGP, the options were limited, but I found a nice Inno3d 7600 GS card that would suit my needs and not break the budget. I plugged it in, booted up and prepared to install the drivers. Then all hell broke loose.
In short, the problem is that the screen goes blank at random times with the monitor LED blinking. It's like it doesn't get any signal from the computer, like when you forget to turn off the monitor after you've shut down the PC. This happens very often, and sometimes the signal doesn't come back, and I have to reboot.
This happens regardless of which video and mobo drivers I'm using, but all the time when the rig is under load: boot-up, running antivirus or IL2, for example. It even happens without any drivers installed. There have been no artifacts and no crashes whatsoever. This leads me to believe that it must be a hardware issue.
I suspect one of two things: It could simply be that the card is faulty and shuts off for some reason. Against this is that there are no gfx errors at all. The other thing, which I think is more plausible, is that my rig could be underpowered with the new GPU installed. IIRC, my PSU should deliver 18a on the 12v rail, and that might not be enough. It's 2-3 years old, mind you, so it could be spitting out even less.
I trust the collective wisdom of this community and need your opinions on the matter. Thank you for your time.