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Dead MOBO?

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#1 fritopie


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Posted 22 April 2010 - 04:06 PM

Hi, this is probably on here already, but I dont really have the time at the moment to look through all the post. Yesterday I was on my computer playing counter strike: source, when the screen went gray. I restarted it in safemode, and about a minute later it died. Now when I push the power button, The light on the front of the computer, and the MOBO light come on, but nothing else. The fans dont spin, and it has no other signs of life. I went and purchased a new(used) power supply, and I still have the same problem. Does this mean my motherboard is fried?

My computer is a Gateway GM5478 with a 2.4ghz core2quad / 3gigs of ram, and an nvidia 8800gt.

I really hope it's not fried, but I'd like to know if it is.

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#2 YHB318


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Posted 22 April 2010 - 09:07 PM

First off, Welcome to Bleeping Computer! I hope you can find the answers you are looking for!

You might have a bad motherboard, but I would suspect the video card first. (or at least test it first, since it's easier!) It might have overheated while you were playing, and could be keeping the rest of your computer from coming on. Do you have a spare video card laying around you can test in your motherboard? That would be ideal. If not, do you have another computer you can test the 8800GT in? That might be harder to find...

#3 fritopie

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Posted 24 April 2010 - 09:49 PM

Yeah, my dad has a similar 8800gts in his machine. I'll put my card in here and try it.

#4 MrBruce1959


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Posted 25 April 2010 - 12:30 AM

If your video card is showing signs of failure you could try an old remedy that sounds strange but works, it involves reflowing the solder on the board, by removing any plastic parts from the board, pre-heating an over to 375 degrees F. Inserting the video card into the hot oven on the top rack away from the bottom, allow the heat to rise up to the card, not have it right on top of the eliment for no more than 10 minutes. Turn the oven off and open the oven door, but do not move the video card until it cools or you may cause solder bridges.

Once card is cool remove and retry in computer.

The above should only be tried if the card fails to work at all even in another computer.

Make sure the card is firmly seated in video card slot and connections are observed through out motherboard, try removing plgged in cables and reconnecting them again and restarting the computer again.

There could be a faulty connection anywhere on the motherboard that is causing this to happen.

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#5 Sobeysboy


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Posted 25 April 2010 - 03:22 PM

"I went and purchased a new(used) power supply, and I still have the same problem."

Are you sure this power supply actually works?
Why not buy a NEW power supply?
AMD Phenom™ 9950 Quad-Core BE, Kingston HyperX 8GB RAM, WD VelociRaptor 300 Gb, HIS Radeon HD5770, SoundMAX Blackhawk HD Audio, Windows Vista HP-64 bit, ASUS M3A79-T Deluxe, Logitech G5 Laser Mouse, Corsair 750 watt PSU, Zalman GS 1000 Full Tower, CoolIt Domino CPU Cooler

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