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CPU not booting after I installed a new power supply

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#1 st3v3yo


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Posted 23 September 2010 - 06:57 PM

ok so these past few weeks my computer has been a bit schizophrenic. it would randomly freeze and reboot while i was on it or when I left it alone. It also recently developed an issue with its audio: unless I turned the volume down to 1 for each individual application in the volume mixer (windows 7), all I heard was static whenever sound was supposed to come out. I figured that it might be a bad power supply; its the only piece of old hardware left in my computer after my recent hardware upgrade. This suspicion was pretty much confirmed when I began to hear the telltale high pitched whine of a failing power supply coming from it. I put off replacing it, however, because I have been very busy, and the computer still functioned. Two days ago, I was trying to get some work done, and that whine was making it difficult to concentrate. I shut down my computer, but the noise didnt go away. if got much quieter and higher pitched, but it was still there. Only when I actually unplugged the computer did the sound go away. I got curious, and went to see if the sound would come back if I just plugged in the computer without turning it on. I plugged it in, and the sound did indeed come back for about a second. then, the power supply's fan started spinning really really fast and making a bunch of terrible noises. when sparks started coming out of the back of it, i unplugged it as fast as I could.

Today I got a new power supply and hooked it up, but the computer wont boot. the fans all turn on, and all my motherboards lights turned on, but I couldn't hear the disc drives or hard drives shuffle like they normally do on boot up, and I wasn't getting any video to my monitor.

Does anyone have any ideas as to how I should go about troubleshooting? I really don't want to have to get a new computer......

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#2 vnsmith6


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Posted 24 September 2010 - 01:36 AM

I suspect because of the sparkling, one of your hardware's got a problem too.. I suggest you first check everything on it before plugging it nor opening..

#3 Eyesee


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Posted 24 September 2010 - 05:05 PM

Make sure that you have the 12 volt power connector plugged in (I always make that mistake)
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#4 Sneakycyber


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Posted 25 September 2010 - 10:13 PM

When the PSU had its catastrophic failure it could have taken the motherboard out :thumbsup:

Chad Mockensturm 

Systems and Network Engineer

Certified CompTia Network +, A +

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