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Acer Aspire powers on and off

Hi,
I have an Acer Aspire T690 Desktop it powers on and stays on anywhere between 5 to 30 mins then it powers off then right back on by its self and stays on again 5 to 30 mins then it does it again. I have checked the fans they are not cloged up do to dust.I have run a virus scan it shows no virus. Can anyone please HELP me.

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The power supply is suspect here but go to setup or Control Panel to disable any power saving settings. Just change the setting to "Never turn off". I don't have your operating system to be specific but you can find the settings if you just explore.   If the signs point to the power supply you can try connecting another power supply if you have one available or check the Power On/Power OK pins at the connector if you have a meter. There are also power supply checkers you can buy but power supplies are not much more so just take the power supply out and any local service department where power supplies are sold will check your old one before selling you a new one. Let me know if you get any more clues to go on or need help as to where to check with a meter. Steve Medley

Posted on Dec 14, 2008

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Part Number: AspireT690 Aspire T690
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