I just replaced my 450w PSU with a 600w. Everything is installed right to my knowledge, I have put a few in before. When I go to turn the PC on for 1 sec the LED lights up the Fans spin then it all stops and it seems it doesnt work. The green light on the motherboard is on. If i unplug the back of the PSU and plug it back in it will do the same. but if i dont and try to turn it on again nothing will happen. Any help??
2007-09-20 10:32:33 · 3 answers · asked by Anonymous in Computers & Internet ➔ Hardware ➔ Add-ons
450w power supply was fine. I got a Radeon HD2900xt and it requires 500w + so I got a bigger PSU. Everything is in right, good chance its just a bad PSU. I got it from TigerDirect and it had a lot of good reviews.
2007-09-20 11:26:34 · update #1
Clear CMOS. Disconnect FDD, HDD, CD. Reseat the power supply connectors on the motherboard. If motherboard has a 4pin 12V ATX socket for cpu power, be sure it is connected to power supply. Reseat cpu fan connector. Be sure it is plugged to cpu FAN and NOT system FAN.
Power ON. The bare set up should beep once, POST and be able to open BIOS menu. Load Fail Safe Defaults in BIOS, save and exit. Reconnect the devices, one at a time, HDD first.
2007-09-20 11:10:58 · answer #1 · answered by Karz 7 · 0⤊ 0⤋
If all you did was replace the PSU make sure that if there's a 4 pin plug on the motherboard by the cpu that you have some power plugged into it and if you have a 24 pin plug on board that you have a 24 pin connector and not a 20 pin in it.Make sure you didn't knock the cpu fan connector off the cpu header on motherboard as some boards wont fire up if there isn't a load(fan) on the cpu header. Also be sure than if your video card requires power it was power hooked up to it too. If you replaced the 450 PSU because it was doing the same thing then it wasn't the power supply in the first place. I just hope it isn't one of those 19.99 600watters on Ebay because they are total junk! Also may sure that, if you have a 230/110 volt slider switch on back of PSU that its at 110.
2007-09-20 11:02:13 · answer #2 · answered by s j 7 · 0⤊ 0⤋
The symptoms you describe sound like a bad hard drive. Check to make sure you have power to it.
2007-09-20 10:58:24 · answer #3 · answered by Anonymous · 0⤊ 0⤋