My linux box seems to be dead.

Usually in this situation I get some beeps to help me tell what it is but this time, nothing.

The red motherboard light comes on and that's it.

I've removed the memory, CPU and graphics card (agp slot, not onboard) and still no beeps. I've reseated them all too. Still no beeps.

Have replaced the , power supply, memory and graphics card too so I don't think it's those.

Because I haven't got a spare AMD cpu I can't test that it's that. However, I'm guessing that it would beep if it was.

This leaves the motherboard. Could it be a dead battery? Would that cause symtoms like this?

The motherboard is:

QDI Kinetiz 7T

And it's been working fine before until I pulled it apart to put in a new case.

Maybe the Award 1998 PNP686 bios has gone?

Can you think of any search words to help me find help on this?

A dead battary should not prevent boot up, it would reset your BIOS settings to default, which could cause some problems, but that is another story.

I have had some problems with booting on my soyo dragon plus motherboard. As soon as I would apply power it would spin the fans for just a second then shutdown. In my case the problem was the cpu cooling fan had come unplugged, and as soon as it got to the point where it tested for the fans presense, it shut down (in effort to prevent me from frying the processor).

But, it is possible that some motherboards may not give a beep code if the MB is bad, it might be worth looking to see if your motherboards manufactures website has a troublsehooting guide.

Try resetting the BIOS. Make sure the CPU fan is plugged in. Some BIOS's will not power up the motherboard if it can not sense fan speed.

Rule of thumb, always look at the last thing you did. Make sure the motherboard isn't shorting to the case. The power connecter is fully seated, CPU is fully seated etc.

You might of damaged the motherboard when you installed in the new case. The possibilities are a damaged circuit board trace or static electricity zapped an IC.

yeah, sounds like a bad board to me, especially if it did this right after a change to the system (hardware wise).

One other thing you can check is since you mentioned that you put it in a new case, make sure the reset button on the case is functioning correctly and plugged into the correct pins. It may be stuck on and won't allow your Mboard to start.
J

I would prepare for the worst:

No CPU = no bios booting = no beeps

Try to take everying out except cpu - if mobo doesnt beep (it should beep that it hasnt got any memory) then it's screwed up or cpu is dead. Only way to check which one of those is faulty is to replace cpu or mobo (unless you got diagnostic features on your mobo).

Eventually took to computer shop who proclaimed motherboard dead but cpu ok.