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ATX power supply

Started by Dimitree, September 25, 2013, 10:00:02 AM

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Dimitree

hello guys, I know this is not the right place to ask about this since it's not directly stompbox related, but I believe there are more expert people here than elsewhere..
My desktop computer may have a faulty ATX power supply: when I power up, the pc suddenly reboot (without even reaching the motherboard boot), and so it goes forever. If I remove power for something like 10-15 minutes, and then I try again to power the pc..then it works flawlessy. So every day, in order to boot my pc, I have to:
power up the pc so that it can reboot tons of time..remove the power while it is rebooting, wait 10-15 mins, plug the power again, power up the pc and enjoy it!

obviously I'm getting a new ATX, but I'd like to know why it does that, in your opinion, and if it is fixable (maybe a simple capacitor is gone, who knows..)..

Pojo

I would just buy another power supply if you determine that's the issue. Decent supplies can be had inexpensively, just avoid the no-name cheapest of the bunch and try to get a wattage rating about double what your computer consumes at load. Corsair, Cooler Master, and Thermaltake are some decent brands to check out.

It's hard to say what's actually causing the power cycling, it may not even be related to supply. But since it's not POSTing I'd say you definitely have some sort of hardware issue. Does it beep at you while it's cycling?

slacker

It could be something on the motherboard, I had a PC where the circuitry that connected to the soft power and reset switches on the front of the case died so you couldn't turn the PC on. I forced the power supply to turn on by connecting the "PS On" wire (the green one) on the ATX connector to ground, just used a bent paperclip and stuffed it in the connector so it connected the green wire to the ground one next to it. The PC ran like that for years, I just had to turn it on and off using the hard power switch on the back of the supply. You could try the same trick, if that stops it continually rebooting it might point to the problem being with the board.