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View Full Version : PSU kill mobo or other way around?

David_L6
October 29th, 2005, 19:43
A week or so ago something happened to one of my computers while I was running a benchmark program with some new video drivers. At first I thought it was my video card so I installed a cheap spare that I already had. Saw sparks, heard arks, and all that kind of stuff that you really don't want to see or hear come from electronics. At this point I'm guessing motherboard so I bought another mobo. Swapped CPU and RAM over to new motherboard, hooked everything up without a video card and nothing. Hhmmm..... Installed the cheap video card - still nothing. Fans on PSU wouldn't even come on. Happened to have a different PSU so I tried that. Hey! It works!!! Took out the cheap video card and re-installed my 7800 GTX. Everything still OK.

Now I don't know if the original mobo is bad or not. I suspect that it is because I saw sparks come from the area around the end of the video card that is towards the front of the computer.

It also appears that the PSU is dead.

I wonder what killed what??? Mobo short out and kill the PSU or did something go wrong in the PSU and kill the mobo?
Awesome
October 31st, 2005, 22:15
PSU is usually what fails in cases like this.

Awesome
Ickie
November 1st, 2005, 06:33
most cheep 30 - 40 dollar power supply's are from China, and a China watt does not equal an American watt, lol Chinese arithmetic , hehehe(they can lie because no-one dares to challenge them and the warranty is in the middle mans pocket, he probably bought the thing for 5 dollars)
the cheep transistors they use, just get hot and blow up. :costumes:
usually thats all that happens.
David_L6
November 1st, 2005, 12:24
most cheep 30 - 40 dollar power supply's are from China, and a China watt does not equal an American watt, lol Chinese arithmetic , hehehe(they can lie because no-one dares to challenge them and the warranty is in the middle mans pocket, he probably bought the thing for 5 dollars)
the cheep transistors they use, just get hot and blow up. :costumes:
usually thats all that happens.

It may have been made in China, it mave have been "cheap" but it wasn't inexpensive. Here's a link to the power supply.

http://www.enermax.com/english/product_psu_noisetaker600w.htm