Computer or plug went bang

ash_dac · 26th October 2006, 12:30 PM

Hi,

I turned my computer on yesterday and heard a loud bang and then nothing. It was dead. I tested the motherboard with a spare 250W supply just to see if the board would light and spin the CPU fan. It did light and cpu fan spun

so I assumed the power supply failed. I think the bang was the 5A plug fuse

I opened the PSU case (the PSU had that 'electronics smell' so the magic smoke must have escaped) and found the PCB area around the rectifier diodes to be be black / brown. There was also alot of dust inside the unit so my guess is the poor thing overheated.

Seems like the dust was being intaken but not exhausted so dust was accumulating in the unit.

Should I consider a whole new case, dust filters or cleaning more

?

Lothar34 · 29th October 2006, 01:02 AM

Just clean it periodically.

If you smoke in the room with the computer, the dust gets sticky and makes it worse.

26th October 2006, 12:30 PM	#1
ash_dac diyAudio Member Join Date: Jan 2005 Location: UK	Computer or plug went bang Hi, I turned my computer on yesterday and heard a loud bang and then nothing. It was dead. I tested the motherboard with a spare 250W supply just to see if the board would light and spin the CPU fan. It did light and cpu fan spun so I assumed the power supply failed. I think the bang was the 5A plug fuse I opened the PSU case (the PSU had that 'electronics smell' so the magic smoke must have escaped) and found the PCB area around the rectifier diodes to be be black / brown. There was also alot of dust inside the unit so my guess is the poor thing overheated. Seems like the dust was being intaken but not exhausted so dust was accumulating in the unit. Should I consider a whole new case, dust filters or cleaning more ?

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29th October 2006, 01:02 AM	#2
Lothar34 diyAudio Member Join Date: Sep 2006	Just clean it periodically. If you smoke in the room with the computer, the dust gets sticky and makes it worse.

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