I have a computer with a GTS 250 video card which is hooked up to my 40" Samsung HDTV. I was working fine until about 6 months or so ago when it started randomly rebooting and sometimes it wouldn't reboot but would lose video for a second or two. Being that the computer was still under warranty, I conferred with their tech department and they though I might have a bad video card, so they sent me a replacement. However, the computer was still rebooting on it's own, so I sent the whole computer back for them to work on it. I just received it back and plugged it in, and it doesn't seem to be rebooting on its own so far, buy I lose the video for a second or two and it seems to be happening more often. I was ready to call these guys back and give them hell for not fixing it properly, but before I did, I thought I'd try another monitor just to make sure I had no problems with the equipment on my end. It is just a standard VGA monitor however, and so far, I have not seen the problem yet. I had my 40" TV connected to the computer through an HDMI cable. I'm just wondering if just a part of a video card, like an HDMI, can be bad, as everything seems to work fine through VGA. Or is the imput on my TV screwed up somehow? I don't have the problem when I'm watching it as a TV and using the cable box. I also tried a different cable, but it didn't help. I want to make sure I know it's not my TV before I send this thing back again for repair. So is it the video card or my TV?
The power supply was replaced when I sent the computer back. I've already tried swapping the cable, as I stated earlier. Last night I plugged the cable box into the PC imput, and so far, it has not blacked out any, so I'm suspecting the video card.