Motherboard Woes

[racer18]

OK-So I come to work yesterday and my computer is off. I ask some of the guys, and nobody knows anything. Hit the power switch...nothing happens. Removed the cover, and saw the switch was slightly damaged (not making a good contact with the button on the front cover). Fiexd that and nothing. Tried the switch on a different system-works fine. Power supply smelled funny, replaced with new one-still nothing. I've pulled and put back all cards, memory, etc. and still NOTHING. When plugged in, the standby LED is lit, but the system doesn't even twitch. I was going to try changing a jumper to power on at AC restoral, but the **** motherboard doesn't have the required jumper installed...does ANYBODY have a clue?? BTW, the motherboard is a Freetech P6F91i
thanks,
lj

[racer18]

OK- I pulled all cards out, including memory, got the standby LED, pushed power button and NOTHING. Tried jumper wire between the power button pins and nothing there either. I am using a known good power supply. Also tried reinstalling the memory and powering up...nothing yet again. What's next??
Lance

[Nixona]

Is anything going on inside at all? Power Supply fan spinning? CPU Fan spinning? Are you sure the CMOS jumper isn't set to "clear" instead of "normal" The computer could possibly light up, but nothing would happen. Also throw a new mobo in there and see what happens. If you have a known good power supply, known good RAM, and a known good CPU, then you've eliminated all other options.

[Nemo]

Sounds like the MB is gone !

[rossfree]

Slow down... take a deep breath... and figure out what does work. :-)

You say you fixed the switch... tried it on another PC. Good.

You swapped power supplies. Did the new one come out of a working PC? If not, swap it with a working PC like you did the switch and be sure it's good.

Now you know you have two things that work!

Add your mother board, connect the power supply and switch and be sure to connect the PC speaker. Don't connect anything else yet. Power on the system... you should expect to get fault beeps from the PC speaker. Yes/No??

If you did then at least part of the mother board is functioning. Next add memory. Only install one memory chip. Turn it on and expect a different set of beeps (because you have no video card in the computer yet). Yes/No?

Add the video card and plug in the monitor. Power on...

Continue this way and determine what works and what doesn't. One component at a time will help you nail down the problem.

If your in doubt that a component you've installed is good, then pull it out for the time being and continue checking others.

If you get a little further you can re-post the additional information you've learned hear and we can better help you. ok?

Hope this is helpfull,

Ross