new build from used parts boot no video

[dc73]

I have a newly assembled pc config that starts up when power button is activated, but produces no video signal (monitor just sits there saying check cable). obviously, i have tried checking the cable, and the video card, and everything else (it would seem). seriously, i have swapped out the power supply, the memory, disconnected all drives, swapped video cards, swapped hard drives, and even with only the video card, memory, and hard drive connected, still get the same problem. I have even tried disconnecting the case wires for LED's and switches, and starting the computer by jumping the power switch posts with a screwdriver, thinking maybe the wiring in the case was faulty. I have tried disconnecting power, and setting the jumper to clear the cmos too.

Any ideas... please!!!?

ECS K7S5A
Athlon XP 1700
256 mb PC133 mem
40 gb western digital 7200rpm drive
32 mb riva tnt2 agp video
also tried a pci video card
250W power supply (also tried 350W working ps)

[Cricket]

Having trouble with a new build? Try this.

Cricket

[andper10]

ECS is a very unrelilable motherboard brand. It could be what is causing your problem, although if those PSU's aren't on the good list (http://www.forum.pcmech.com/showthread.php?t=131195 ), then they could be causing the problem too.

[glc]

The TNT2 doesn't need a powerhouse. However, any Athlon with a video card should have at LEAST 300 watts. If your 350 is a reasonably decent brand, it should be fine. The 250 will not cut it.

The K7S5A actually wasn't that bad a board - it's one of ECS's better efforts. However, it was a bit quirky and long term reliability is still questionable.

[dc73]

Originally Posted by Cricket Having trouble with a new build? Try this. Cricket

ok, i tried the method spoken of by "Cricket", basically experimenting with the board out of the case, and nothing connected to it but power and video card... same results. i have also now tried disconnecting power, clearing cmos, and plugging in a different power supply that i know works, a 350W. Still, no video signal.