Ummm, I just nearly killed myself....

I've been gathering parts for about a week now, and it came down to this:

Gigabyte EX58-UD3P DDR3 Motherboard

4GB of DDR3 RAM

2 Hard drives

Radeon 4890 ( I was one of the first in Australia to get one XD)

Cooler Master Extreme 650 Watt

Now, the reason I listed my parts is.... When I recieved the PSU, I was in a rush when building and didn't flick the voltage switch to 250. BOOM when i turned it on.

What are the chances of damage? There is no visible damage ANYWHERE.

PLESAE HELP ?

So you connected the PSU to the parts?

Which country do you live in ?

Buy a good power supply and you won't have the problem. Any decent power supply uses active PFC, which means no need for a switch.

Which country do you live in ?

joshuahaveron

Buy a good power supply and you won't have the problem. Any decent power supply uses active PFC, which means no need for a switch.

GuitarFreak2

Check the capacitors around on your motherboard, if some are bulging chances are its not going to work.xXDrPainXx

what is this psu switch, can someone explain?

Usually a big pop or boom means something was shorted. The noise usually comes from the actual electrical discharge. I agree to check the PSU on a different unit to see if it is even working properly (use an unreliable unit for testing only). It could have been a bad capacitor in the PSU unit as well. Even knowing that it might still work on a different unit, I wouldn't be so confident that it will actually work under a load (playing a game).

If you don't see any visible damage and you heard a boom, most likely you are looking in the wrong spot =p.

My guess is a capacitor in the PSU (they are huge in there). Possibly a poor unit.

Good luck

credibility: i'm an electrical engineer.

Is this type of damaged covered under any warranty, such as the PSU or the individual components? Or are you just screwed if this happens?

Thanks, it's good to know there is some hope still left for my parts... I've checked all components, no damage visible.

Oh, I forgot to mention, one of the fuses in the fuse box outside the house turned off, and the whole house went out. So I'm guessing it turned off because there was an electrical surge? And, the noise sounded like a REALLY LOUD clap, because my ears were ringing for a minute or two...

I'll be testing the PSU on an old motherboard today, heopfully it will be still safe to operate. XD Thanks for the help guys.

fuses blow for two reasons.

1 being that there is an electrical surge (inrush current/voltage transient) caused by something external (i.e. lightning, line faults).

2 being there is a short directly to ground in the house(bad) that causes high currents which will blow the fuse.

If your fuse was blown because of this loud pop, and if you said it was loud i would NOT test it again. Your most likely going to blow another fuse. I'd recommend getting that PSU replaced. If its still new, there should be a warranty. Contact the manufacture and get it back to them.

If you decide to test it on a motherboard (we all have that childish desire to blow something up), PLEASE be careful. those PSUs may output low voltages (+12V) but they do have very high currents and if a loud pop was heard, I can almost guarantee something is wrong. Take caution!

[QUOTE="joshuahaveron"]

Which country do you live in ?

markop2003

DO u guys read anything?

He lives in Australia obviously, "I was one of the 1st ones to get the 4890 in AUSTRALIA", omg some people miss the obvious information, not sure about ur problem, but I've done that once aswell wen i used to have the 8800gts 512, didnt do anything to the card, lucky the psu shut off completly, i dont believe it did asnything anyway, was running fine for 2 yrs.

After this i bought my psu and case seperatly, was a bit more expensive, but a brand name does help