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Computers wont turn on (detailed)

By CJ Casanova
Oct 5, 2011
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  1. Hello, first of all thanks for viewing!

    I work for a few schools as there IT Technician/Network Administrator, At one of my schools they had some computers that wouldnt turn on (5 in total) So i tried and tested a few things, and eventually put it down to the Power Supply units (as this school isnt great with IT and have no surge breaker, aprently theres not enough budget) anyway, i asked them to order in 5 PSU and gave them the details, i came in yesterday and replaced all 5 of the power supplys and dumped the old ones. After this i tested them all and they were working fine, so i installed Faronics Deep Freeze Enterprise to stop the kids changing there desktop/mouse settings.

    I come back into work today and im told that 2 of the computers wont turn on, So far i have checked all the connections inside to make sure we have no loose ones, i also tried a different power lead even though i knew it wasnt that because we have splitters and the moniter is on. There computers are supplied by NEC (with MS-7295 v1.0 mobos) both of the computers are the ones i replaced power packs in just yesterday.

    Any help or advice is apprieciated!

    Thanks in advanced

  2. mailpup

    mailpup TS Special Forces Posts: 7,157   +459

    Just checking something simple, but any chance someone switched the power supplies off at the back?
  3. CJ Casanova

    CJ Casanova TS Rookie Topic Starter Posts: 17


    Turns out one of them was earthing on the case, small scew causing it.

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