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vaio desktop powers on but won't boot up


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#1 RealityEclipse1

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Posted 05 April 2009 - 07:29 PM

I have a sony vaio pcvrz44g with xp media center. 2 days ago it turned itself off and I had to disconnect the power and reconnect in order to get it to boot again. While booting it went through its' normal start up routine all the way through the loading windows banner but then got stuck at a black screen. I restarted twice and it did the same thing. After those tries the third time I rebooted the working light came on, the fans turn on, but there are no beeps and it never starts to boot. None of the peripherals or the cd/dvd drives are getting power and I can't hear or feel the hard drive running. After pulling all the fans off and cleaning everything to make sure it wasn't an overheating issue I tried it again. same problem. The board will power on, the fans will run, but it never starts to boot the OS. no beeps and nothing ever makes it to the monitor. Is this more likely to be the motherboard or the hard drive? My guess is motherboard, or possibly ram since I've seen bad ram cause a computer to not boot before, but generally it does more than just turn on the fans when ram is the issue. Please help if you have any suggestions! Thank you.

Bryan

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#2 hamluis

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Posted 05 April 2009 - 08:40 PM

My initial guess would always be...power supply...in such cases.

Until proven differently.

That means the current power supply works in a known good system...or I have replaced it (temporarily) with a known good PSU in the troubled system and the system still suffers the same symptoms.

Fans running, lights blinking, etc...are indications that a PSU works, but the real test is booting an actual system (IMO).

Louis

#3 the_patriot11

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Posted 05 April 2009 - 09:09 PM

That would be my initial guess as well, if you have another PSU to swap out or another system to try that one in, do it, otherwise Dc3 has an instruction manual on how to test them. go here to read the instructions how to: http://www.bleepingcomputer.com/forums/t/198368/hp-a410n-power-supply-led-blinking/

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