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Two Dead Computer - Coincidence or Conspiracy?


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#1 katnip

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Posted 04 December 2008 - 05:14 AM

Hello all,

My sister has a really strange problem, she has two desktop computers that are dead. To boot, they died at the same time. She was on vacation and left the computers unplugged. When she got back home, she powered up the computer and everything was dead.

No monitor, no keyboard, no motherboard, but the printer did come on.

I could understand if one was doing this, but two???

We have changed both computers components back and firth, still no luck.

Tried to resolve the problem by checking the power source.

N O T H I N G

I know there are a lot of extreme smart people on this web site that have helped me in the past.

Appreciate any input, suggestion, questions that may resolve this crazy problem.

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#2 Platypus

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Posted 04 December 2008 - 05:36 AM

Other than holiday time, are the computers normally left plugged in with the mains on, and allowed to enter sleep mode or standby mode (soft off) when they're not being used?

If they are normally used this way, it's not uncommon for the standby supply in the PSU (Power Supply Unit) to develop bad electrolytic capacitors, and be unable to start up after complete power-down. (Of course the printer has its own power supply). While the system remains connected to the mains, the standby supply keeps running despite having some weak capacitors, so the computer can fire up again. To prove this for sure, the most straightforward way is to get the use of a known good PSU and try it in the systems, which I assume you would be able to do as you have already swapped some components between the systems.

If this is not the situation, what precisely did you mean when you said "checked the power source - nothing"? Checked which power source how, and what did nothing mean - no power, no problem, etc?

Edited by Platypus, 04 December 2008 - 05:38 AM.

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#3 garmanma

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Posted 04 December 2008 - 12:58 PM

You didn't by chance hit the on/off switch in the back on the power supply, on the computer, did you?
Mark
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#4 katnip

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Posted 09 January 2009 - 09:24 AM

I'm so sorry for this delayed reply. Happy to report that it was a power cord problem that was fixed. Thanks to those that replied on this thread.
Sincerely,
Kat~





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