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Computer Not Working: Motherboard or PSU?

Last response: in Systems
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January 22, 2013 9:08:47 PM

Hello all, I built recently built a computer about a month ago, and it was working perfectly fine. However, today when I went and tried to turn it on, nothing happened. I checked the AC cable and the outlet to no avail. I tried shorting the power lead on the motherboard but that still didn't work. Any suggestions? I also need to know whether to replace the PSU or the motherboard if either of them went bad.

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a b V Motherboard
January 22, 2013 9:20:09 PM

do the lights on any of your components turn on? If not then it might be the power supply. You can do this paperclip test to make sure.

http://www.youtube.com/watch?v=5FWXgQSokF4

If the fan spins, then its probably your mobo.
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January 22, 2013 9:32:17 PM

I tried the test and no fans spun. So that means that my PSU is dead. That being said, do you recommend any particular power supplies?

System Info:

Intel i5 2500K
Gigabyte Z68XP- UD4
PNY GTX 580
Seagate Barracuda 1Tb HDD
Hitachi 500Gb HDD
4x4Gb DDR3 1333 RAM
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a b B Homebuilt system
a b V Motherboard
January 23, 2013 6:50:53 PM

pakman97 said:
So the second PSU has a "Hybrid" and a "Normal" mode switch. What is the difference?

http://www.techpowerup.com/reviews/Seasonic/X-750/3.htm...
Quote:
They also mention the hybrid circuit for fan-speed control since it allows for fanless operation at lower loads where noise output reaches the lowest possible level, and there is also a graph showing the fan's speed in both normal and hybrid mode. Finally, Seasonic provides some information on the fan the unit is equipped with. Their favorite San Ace fan may not be so silent at high speed, but it is, without a doubt, of high quality.
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January 23, 2013 7:28:27 PM

Best answer selected by pakman97.
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