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Why does my dell tower keep switching off after booting up

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Last response: in Computer Brands
July 15, 2012 12:07:12 PM

when i start up my tower it boots up but after about 30 secs it turns itself off what is causing this . the previous owner said it was definetly working am i doing anything wrong when i switch on or is there a fault with the tower. thanks

More about : dell tower switching booting

July 15, 2012 9:18:52 PM

Welcome to Tom's Hardware Forums,
There are a few possibilities here, 1) something became loose during transit - check all wiring connections within computer to ensure none are loose. Also, check the heatsink/fan on the CPU, ensure it hasn't become loose,
2) the PSU died during transit - unlikely but the PSU would need to be replaced or
3) the seller was exaggerating the condition - PSU would probably need to be replaced.