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Computer Wont Start?

by amialki / July 13, 2005 11:15 PM PDT

I was working as normal on my computer the other night. I have a compac computor with windows XP. It works great (until now). I decided to run a virus scan using AVG Free. It was late so I went to bed and let the scan run. Forgot to check it in the morning so i didn't check again until that evening. When I went back to my computer the sceen was black, I asummed it to be in sleep mode. I was not able to awake it. I shut it down and have restarted several times but I get nothing. It doesn't even try to boot up. Does anyone have a clue what might have happened?

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by Willy / July 13, 2005 11:51 PM PDT
In reply to: Computer Wont Start?

Unplug AC cord and wait 5min., reconnect AC cord, now try to power-up. What are the results? If still no boot, then you have a bad power supply or mtrbd. or both. The mtrbd. s"start ckt." lost its ability or blew. -OR- the power supply has blown. Usually the best to do is replace p/s and start from there. Replace with a higher wattage one if possible, it won't hurt the system to be more and better as the hi-wattage is room to grow on. Do this first before doing anything else, otherwise you may introduce other problems.

tada -----Willy Happy

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Thanks for info
by amialki / July 14, 2005 12:38 AM PDT
In reply to: Check

Thanks for the info. I am not at home now so I will have to do this later. Is there a way to check the power supply with a meter or other device to see if that is the problem

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by R. Proffitt Forum moderator / July 14, 2005 12:52 AM PDT
In reply to: Thanks for info notes a tool that some may need along with a Digital Voltmeter to affirm the voltages.

At the shop we also use an Oscilloscope to see if there are any spikes, dropouts on the supply lines. But all this is costly so it's reserved for those that won't just swap the PSU out and demand (they pay dearly) that proof that the PSU is dead or abberent. Usually we just do the quick power up check, and then a DVM if it comes up. If something is amiss or the PSU is overtaxed, over a year old we slide in a new whopper PSU. The success rate is too high to diddle with the old supply.

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