Thanks for coming to this post, here is the story of how my power supply (Cool Master RS-750-ACAA-E3) end up short circuited. I am now trying to find out if something else is damaged and why this happened in the first place.
A friend gave me his old pc because he got himself a new one (old pc working ok at this moment, he only removed the HDD). I disassembled it to clean it thoroughly, taking photos of the connections to assemble it again. After assembling it with a new HDD, I proceeded to power it up (had it plugged on to a 500W power regulator) and try to turn on the pc. At this point I realise it doesn't turn on because I accidentally connected the power button on the reset pins on the mobo and the reset button on the power pins. After correcting that mistake, I proceed to turn on the pc and it does it normally for 3-5 sec and after that my power supply made sounds like fireworks (at first I though I left a screw on a fan) and the pc shut down. At this point I realized that when I changed the power and reset button pins, I accidentally left unplugged the power cables of my graphics card. I proceed to unplug completely my power supply and try it with no load, what happens is that my power regulator shuts down the supply as soon as I power up the power supply. For this reason I confirm my power supply is short circuited.
Questions:
PC parts:
A friend gave me his old pc because he got himself a new one (old pc working ok at this moment, he only removed the HDD). I disassembled it to clean it thoroughly, taking photos of the connections to assemble it again. After assembling it with a new HDD, I proceeded to power it up (had it plugged on to a 500W power regulator) and try to turn on the pc. At this point I realise it doesn't turn on because I accidentally connected the power button on the reset pins on the mobo and the reset button on the power pins. After correcting that mistake, I proceed to turn on the pc and it does it normally for 3-5 sec and after that my power supply made sounds like fireworks (at first I though I left a screw on a fan) and the pc shut down. At this point I realized that when I changed the power and reset button pins, I accidentally left unplugged the power cables of my graphics card. I proceed to unplug completely my power supply and try it with no load, what happens is that my power regulator shuts down the supply as soon as I power up the power supply. For this reason I confirm my power supply is short circuited.
Questions:
>¿What could possibly made my power supply be damaged this way? My two main suspects are: 1. graphics card not powered but connected to mobo tried to pull power from mobo 2. dust inside the power supply created a short circuit (saddly the power supply was the only component I didnt cleaned)
>¿Is it possible other components have suffered permanent damage also?¿If so, how can I test it?
PC parts:
>Power Supply: Cool Master RS-750-ACAA-E3
>Processor: Intel i7-950
>Motherboard: GIGABYTE EX 58 UD3R S/R X58
>RAM: CORSAIR 4GB DDR3 VENGEANCE x3 (total: 12GB)
>Graphics Card: SAPPHIRE RADEON HD 6970 2GB
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