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Power up problem


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#1
blackstone

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When I try to start my wife's computer, the fan starts but it won't even begin to boot.
It was working fine when it was shut down.
I checked connections and all seemed to be tight.
I switched the power to the hard drive and it made no difference
I don't know if this means anything but a second or two after the fan starts, I hear a very soft click. Best way I can describe it is like a relay kicking in.

I've always received great help here and thank you in advance

Larry
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#2
rshaffer61

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Sounds like a faulty PSU from your description. Do you have a different one to try as this will tell us for sure.
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#3
blackstone

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Thanks for the fast reply, rshaffer61.
By PSU, do you mean Power Supply?
If so, I replaced it about a year ago.
Would a power supply allow the fan to start but not power up the rest of the machine?
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#4
rshaffer61

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It is possible but after rereading you post it seems the PSU is turning on and the fan is continuing to turn correct?
If this is so then I would look at maybe a short somewhere.
Try this:
Disconnect everything from the Motherboard except
  • keyboard
  • mouse
  • video output
  • 20+4 powercable
  • 4/8 pin 12v wire both coming from the powersupply,
  • Cpu fan wire
  • power and reset button to the case
  • case speaker
Now you should have NOTHING connected to the motherboard except what was listed above. Try booting it now and does it post?
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#5
blackstone

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I think I disconnected every thing except what you listed. It still doesn't boot.
I'm wondering if it may be time to look at those Black Friday specials.
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#6
rshaffer61

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I think I disconnected every thing except what you listed. It still doesn't boot.
I'm wondering if it may be time to look at those Black Friday specials.


I would say YES
How old is the system?
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#7
blackstone

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It's 3 or 4 years old.
I hate to say it too loud, mine is 7 or so
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#8
rshaffer61

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One word of advice. Don't throw anything out because you can still get the data off the drive when you get the new system.
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