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Computer Wont Stay Off


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4 replies to this topic

#1 Sneakycyber

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Posted 21 February 2008 - 04:38 PM

I have personally never heard or encounterd this but a guy at work asked me what would cause a computer to turn it self back on after powering down. He plays around putting old computers together when he gets spare parts. He has run into this problem a few times. He will turn on the computer allow it to post (No HDD) then turn it off the computer will completely shut off then turn it self back on. He has tried to remove the power switch wires to the case, Tried a new power supply, new power cord, Different memory, Diff CPU. The only thing that works, obviously is a different motherboard. I told him its problably just a bad MB although I have no Idea what would cause it.
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#2 garmanma

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Posted 21 February 2008 - 04:50 PM

WAG- a "wake-on" option in the BIOS?
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#3 Sneakycyber

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Posted 21 February 2008 - 04:52 PM

I thought about WOL or Wake on Lan but He said he didn't have anything connected to it.


Edit: could be a faulty reading though. I will tell him to check the settings and see if that works

Edited by Sneakycyber, 21 February 2008 - 04:53 PM.

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#4 garmanma

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Posted 21 February 2008 - 05:18 PM

In some BIOS's I've seen there are "wake-on" options other than LAN, but it would still be located in the same place

Edited by garmanma, 21 February 2008 - 05:18 PM.

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#5 DaChew

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Posted 21 February 2008 - 05:47 PM

there's a remember last state for power on, if you disconnect the power and reconnect, the computer's boots

there's also a power management setting that requires a bios to be compliant with a certain standard when you install an advanced os like xp

I used to run into a lot of these problems with old computers, some bios's reacted like the olden days of at power supplies and you would get the "it's ok to shut down screen" with an atx switching power supply

tell him to check for a bios update on those old motherboards

Edited by DaChew, 21 February 2008 - 05:48 PM.

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