Ive had a psu toast on me before but whats this?

[raouuul]

My brother says it just shut off and wont turn back on. So i check it out, the psu isnt that hot and is not emitting any foul smell or smoke. So i dont know what else could be the problem. Everything is plugged in obviously. Its an antec 430 watt psu with an amd 1700 nvidia geforce ti4600 one harddrive nothing fancy how could that spec over load it? if it did. It is thunder lightning season in chicago overhere but all today its been clear and my computer has been running fine for the past couple days on. any input you guys got would be much appreciated.
i guesss i should just go pick up a new psu and test it. what wattage? if that doesnt work what could be the problem?

 

[mechBgon]

Originally posted by: raouuul
My brother says it just shut off and wont turn back on. So i check it out, the psu isnt that hot and is not emitting any foul smell or smoke. So i dont know what else could be the problem. Everything is plugged in obviously. Its an antec 430 watt psu with an amd 1700 nvidia geforce ti4600 one harddrive nothing fancy how could that spec over load it? if it did. It is thunder lightning season in chicago overhere but all today its been clear and my computer has been running fine for the past couple days on. any input you guys got would be much appreciated.
i guesss i should just go pick up a new psu and test it. what wattage? if that doesnt work what could be the problem?

Could be CPU overheat or outright CPU failure, motherboard failure or an electrical short-circuit. Check that the heatsink is not clogged with dust, and that it's installed correctly using thermal grease or a fresh thermal patch. Also, what motherboard does this system use?

 

[raouuul]

mech thanks. the mobo is a shuttle spacewalker kt266a.

 

[mobobuff]

CPU failure would have nothing to do with a PSU not turning on. You can kick a PSU into high with just electricity and a motherboard, no proc no ram just the motherboard and the power-switch header.

Try leaving it unplugged for a while. Here in Michigan and Indiana and Wisconsin (pretty much every state touching a Great Lake) it's been pretty stormy and I've seen some pretty wicked lightning in the past few nights. A local Wal-Mart was struck and they had to reboot all the computers and I think only half of them turned back on successfully. It's likely that some of that static electricity from the lightning fritzed the PSU. You'll know for sure once you try another supply, or try that one in another system.

Pick up a supply somewhere near 350-430 watts, that's fine for that system.

 

[Deadspace]

I just had this happen to me. I recommend unplugging the computer, and hitting the power button until all the lights on the cpu turn off (signaling the emission of all remaining power on the board). Then plug it back in to see if it turns on again. If it does, expect it to shut down again unexpectedly. Most likely it is a PS problem and replace it. I used a 350W PS in place of the dead 500W. I currently have two HDD, a DVD and a CD-RW. So 350W should be sufficient.