Howdy. My department just received and installed around 100 brand new Optiplex GX620's (ultra small form factor v2). The machines have been out of the box for about 2 weeks, and we already have 3 essentially dead ones. Here is my problem.

 

The machine goes through the normal boot/POST process just fine. When it gets to the Windows XP initialization screen (blue scrolling bar), after about 5-10sec the video goes completely black and a few seconds later the monitor goes into sleep mode. Once here, the monitor cannot be brought out of sleep mode, and the only recourse is to manually power down the machine (a reboot of course yields the same problem). Even through the black screen, the HDD indicator light is still going, so I assume it's not a bad drive. I've also swapped known working monitors with the same results, so it's not a problem with the monitor.

 

I'm thinking that it's a bad video component on the system board, but I wanted to check here before I put in a parts request for three system boards in case it's something else.

 

Thanks.