My USB hard-disk shut down my PC permenently. What's this supposed to mean?

[Thorn of Death]

Where does the problem exist? I disconnected my USB ports, but it still won't turn on. Could it have possibly damaged the power supply? or even worse, the mother board? Man, I'm really worried about my baby.

What happened is that the HD fell down and got disconnected from the PC; and in less than a minute, I replugged it into the same port, and it suddenly shut down.

 

[Link]

Ok, tbh, either you have pulled your power cable out acidentally, or you have fryed something. If its not responding at all when you press the power button, and its not the power lead, then you have either killed the PSU or fryed the motherboard.

Open up the case and see if there is a little green light on somewhere. This should indicate its getting power, so probably isn't the PSU. If theres no little light, check the PSU first.

Was the usb directly attached to the motherboard, or was it a case mounted usb attached by headers? If it was on the board, check it hasn't damaged the board when it ripped itself from the port.

 

[jondy]

Try unplugging the computer from the wall, waiting a minute, and plugging it back in. Worked for me; until then, due to a system blackout, it wouldn't respond to be turned on at all

 

[Washuu]

If all those suggestions fail, before you start replacing things. Reset CMOS!

 

[Thorn of Death]

It was a front USB; I don't know what "directly connected to the mother board" means. There were no little green lights when I opened the case. It didn't really seem to have damaged anything when it fell. I've had my computer disconnected for 60 hours now, and it doesn't work.

I'll just go ahead to a computer shop and see what they say. Appearantly, no other simple solutions exist.

 

[oni_666]

The front USB's on the case, are connected to the motherboard usually by a blue or black 7-8 pin connector.
The light on the board, that you were asked to look for is usually a small green or red LED (light emitting diode) that shows that the board is getting power from the psu.

Switch the pc on, via the psu, then look for a lit LED on the board, if you see a LED but it is not lit then the board is probably dead.

Is the external HD, the one that fell, the main HD in your PC?
Or just a backup device?

What probably happened is that when the HD fell, it pulled something out, or caused a short circuit somewhere in its cabling, re-connecting it, caused windows to crash. (maybe?)

Your best bet, Is to open the case, Earth yourself first, the taps (faucet) in the bathroom will do for this, then re-seat all the components on the board, video card, ram, etc.

Then either reset the CMOS using the jumper on the board, (a small 2 pin jumper on the board, 3 pins, 1-2 normal, 2-3 to reset cmos).

Or remove the silver battery from the board, wait a max of 2 minutes, put the battery back in its place, switch on and see what happens, if it works, then get into the bios and either select default settings or choose your own, if your confident in doing so.

I would try all the above first, before going to a shop, cause if its something simple like this, then the shop may charge you £50+ for 5 minutes work.

 

[Cole]

Heres a little story,
I once had a graphics card, and got about... 1/10 of a milimeter on it melted due to my modem card getting zapped creating lots of heat.

Whats so special about this story?
Put my gfx card in any computer it will not start up at all. No lights will turn on, nothing. No fans....aboslutly nothing.

You have tried turning your comp on after unpluging your USB cord, i'm guessing probably so. Probably some minor damage..yet caused what my gfx caused.