After short-circuit: no bootup

Hi,

I've had a little accident with my computer: after replacing my soundcard, my pc short-circuited(spelling???). So I checked everything and even opened my power supply. It turned out that there had been a little fuse, that had been vaporised. So I replaced it, but with no effect.
So I bought a new power supply, connect it etc. But now when I turn on my pc, the power turns on, but there's no bootup. The lights of all harddisks, cd-roms, LAN card etc, they all burn, the fan of my power supply is on, the fan of my motherboard is on, but my pc doesn't do anything else.

Does anyone know what I may have to do to fix it?
(My motherboard is ABIT V6.)

tnx

Does the hard disk spin up? Um, maybe the RAM?

No, the harddisk doesn't spin up. Only its light burns. And the RAM is connected properly.

Maybe a second opinion is in order - but perhaps your HDD is gone?

Well I have 2 harddisks, both bootable but nothing happens. Even not when I remove the first harddisk.

A second opinion is definitely needed :confused:

Is the power supply the same rating as before? (eg: 350w) If you have a lower rating than before, this will probably be the problem.

Next.. are you certain that all wires inside the computer (power and data cables) are connected properly? IDE cables plugged in the wrong way can have an effect like this.

If none of this works, Do you get anything on screen at all? As far as I am aware if you don't then the problem will be either the motherboard or processor.

reading the post earlier about RAM has reminded me - you should get beeps of some sort if the motherboard is ok, there is a code for RAM, processor etc.. check your manual or the manufacturers website if you get beeping.

You should get...

1) the processor whirring
2) the hard drive whirring
3) a light flash on each drive (not continuously on)
4) the screen come on & usually a single beep

I'd say to check the cables are plugged in the right way if the lights are continuous, then check that your motherboard supports the size power supply you added to it.

The screen won't come on if the memory or processor aren't in right, if it's just that the video card's not plugged in right then you normally get either a continuous beep or a series of intermittent beeps, no sound at all looks like either the RAM isn't plugged in or the motherboards screwed.

If the hard drive & cables are fine, it could be the ide controller on the motherboard - where the grey cable plugs into, you could try switching this to the second controller if you have one & trying this instead.

Personally, this sounds like all the above are okay & you'll probably end up needing a new motherboard.

Quote:

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Originally posted by alex_read
You should get...

1) the processor whirring
2) the hard drive whirring
3) a light flash on each drive (not continuously on)
4) the screen come on & usually a single beep

I'd say to check the cables are plugged in the right way if the lights are continuous, then check that your motherboard supports the size power supply you added to it.

The screen won't come on if the memory or processor aren't in right, if it's just that the video card's not plugged in right then you normally get either a continuous beep or a series of intermittent beeps, no sound at all looks like either the RAM isn't plugged in or the motherboards screwed.

If the hard drive & cables are fine, it could be the ide controller on the motherboard - where the grey cable plugs into, you could try switching this to the second controller if you have one & trying this instead.

Personally, this sounds like all the above are okay & you'll probably end up needing a new motherboard.

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Actually ABit have a system where the board will boot as far as the Beep stage (on PII boards upwards at least) even if the memory/processor/graphics card etc. aren't in right or aren't present. I agree with the rest though.

Try this:
take everything off of the motherboard except for the processor and ram (and power supply) of course. hit the power button and wait. You should get the beep code for no video card.

If not then you have the problem narrowed down and I am out of suggestions.

If you do then put the video card in and try again, repeating each step. I learned this because I had a network card to go bad and of course it was the last card in the processes so took me forever to find the culprit)

good luck,
Michael

Also try it with the video card in and no RAM, to get a beep code. It is possible when the power supply blew it surged and damaged your motherboard - good ATX power supplies are not suppose to let that happen, but not all of them are well built. You might want to try clearing the CMOS as well.

Anyway, at this stage, like msimmons said, you want to have everything non-essential to boot removed, and you don't need any drives or add on cards except the video to boot.

Thanx guys,

It turned out the motherboard was burned-down and the processor was dead. There had been a power surge or something, all my harddisks and cd-roms/writer have been destroyed. So now I have a new pc.
At this new machine I can finally install Win2k and do some .NET stuff :)