Old power supply almost burned my house down!!

Afro000Dude

Senior member
Feb 6, 2003
746
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Today my mom comes home and goes to turn her computer on. She presses the button but it doesn't come on. She flips the switch on the back of the power supply and presses the button again. It won't come on. I look over and see light flashing on the wall. The inside of the power supply is on fire!! I rip the plug out of the ps and it goes out pretty quick.

Now everyone: get out that compressed air or hair dryer or whatever and clean out all that dust and crap inside your cases and power supplies!! Don't forget your fans and video cards!!

I think it fried her computer though. The two hard drives are dead. Won't even spin up. New hard drive won't work either. It was time for an upgrade anyway. (PIII 550, 224M PC133, Voodoo3 3000 PCI, SoundBlaster16 ISA). Looks like I'll be building a new one shortly.
 

Cat13

Golden Member
Nov 14, 1999
1,108
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I did the old can air thing today to my systems. We keep a pretty clean house, but these computers attract some dust.

Wait, maybe that's why the house is so clean, the wife has been tricking me into believing she vacuums everyday! It's the computers!
 

ProviaFan

Lifer
Mar 17, 2001
14,993
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Originally posted by: MrFiTTy
Originally posted by: Mday
Did she use the 120\240V switch?
I was going to say, she wasnt attempting to feed the thing with double the juice was she :p
Unless Afro000Dude is from Europe, there's no chance that happened. Think of it this way: if the switch is in the 120V position, the power supply supply has to step down the current about 10 times to reach the level of the 12V line. If it's in the 240V position, then it has to bring it 20 times (hopefully I'm making sense here; 120 is 12*10 and 240 is 12*20). If you have the power supply plugged in to a 120V outlet, and it's set for 240V, all you'll do is undervolt the system, and it most likely just won't boot - no harm done. If, however, it was plugged in to a 240V outlet, and was set in the 120V position, things wouldn't be so good for the insides of the computer... :(