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  • FIRST POST
    • emerald21
    • By emerald21 15th Apr 19, 12:44 PM
    • 10,708Posts
    • 120,234Thanks
    emerald21
    Pc won't switch on.
    • #1
    • 15th Apr 19, 12:44 PM
    Pc won't switch on. 15th Apr 19 at 12:44 PM
    Hi first of all the pc just showed as no signal then after a couple of minutes it said press the ok button within 1 minute too keep it on. I don't know where the ok button is in a pc so it went off.

    When I try it now I don't even get a no signal message. We did have a short power cut would it have something to do with that anyone know please ?

    It's a zoo storm one and there is power getting to it .

    Any suggestions Thanks.
Page 1
    • Mr.Generous
    • By Mr.Generous 15th Apr 19, 12:52 PM
    • 2,360 Posts
    • 3,501 Thanks
    Mr.Generous
    • #2
    • 15th Apr 19, 12:52 PM
    • #2
    • 15th Apr 19, 12:52 PM
    desktop or laptop pc?

    Press and hold the power button for about 10 secs, then release it, wait a few secs then turn it on as usual.
    • emerald21
    • By emerald21 15th Apr 19, 1:03 PM
    • 10,708 Posts
    • 120,234 Thanks
    emerald21
    • #3
    • 15th Apr 19, 1:03 PM
    • #3
    • 15th Apr 19, 1:03 PM
    desktop or laptop pc?

    Press and hold the power button for about 10 secs, then release it, wait a few secs then turn it on as usual.
    Originally posted by Mr.Generous
    Hi I did that but I'm just getting no signal and a blue screen 😟
    • emerald21
    • By emerald21 15th Apr 19, 1:04 PM
    • 10,708 Posts
    • 120,234 Thanks
    emerald21
    • #4
    • 15th Apr 19, 1:04 PM
    • #4
    • 15th Apr 19, 1:04 PM
    Hi I did that but I'm just getting no signal and a blue screen 😟
    Originally posted by emerald21
    It's a desktop pc
    • JJ Egan
    • By JJ Egan 15th Apr 19, 1:40 PM
    • 12,130 Posts
    • 5,464 Thanks
    JJ Egan
    • #5
    • 15th Apr 19, 1:40 PM
    • #5
    • 15th Apr 19, 1:40 PM
    Check cables

    Moniter to PC etc .
    Power cable to PC all seated home .

    Any noise / beeps on booting .
    • grumpycrab
    • By grumpycrab 15th Apr 19, 5:32 PM
    • 4,070 Posts
    • 1,957 Thanks
    grumpycrab
    • #6
    • 15th Apr 19, 5:32 PM
    • #6
    • 15th Apr 19, 5:32 PM
    We did have a short power cut
    It's a zoo storm one and there is power getting to it .
    Originally posted by emerald21
    Any noise / beeps on booting .
    Originally posted by JJ Egan
    Doesn't sound good. How do you know power is getting to it? Does the computer make any noise as already asked? If not, could be fuse in power lead.
    If you put your general location in your Profile, somebody here may be able to come and help you.
    • Legacoid
    • By Legacoid 16th Apr 19, 7:36 AM
    • 14 Posts
    • 8 Thanks
    Legacoid
    • #7
    • 16th Apr 19, 7:36 AM
    • #7
    • 16th Apr 19, 7:36 AM
    As already stated, look for any signs of life from the PC: a beep, any lights coming on, a fan even trying to spin etc.

    If it appears completely dead, start troubleshooting things from a power point of view:
    - look at the keyboard; does it have any LEDs shining, maybe showing the caps lock state or the state of a mode key?
    - if you plug a phone or other USB chargeable device into one of the USB ports directly on the desktop, does it appear to be receiving a charge?
    - plug some other device into the wall/adapter socket that currently supplies your PC. Does ths device power up OK?
    - replace the fuse in the PC power cord - does that help?

    If you can establish that power is clearly reaching the box, but the box is 100% dead then I would guess that (at least) the PC's power supply unit (PSU) has gone. That's easily replaceable; the question is were any other components damaged. Only one way to find that out: replace the PSU and see where you're at after that.
    Last edited by Legacoid; 16-04-2019 at 7:43 AM.
    • Browntoa
    • By Browntoa 16th Apr 19, 7:48 AM
    • 34,811 Posts
    • 40,848 Thanks
    Browntoa
    • #8
    • 16th Apr 19, 7:48 AM
    • #8
    • 16th Apr 19, 7:48 AM
    Another vote for psu , should be a label on the back showing details of wattage of the unit etc. Fairly generic items so straight swap , undo 4 screws on the back swap output cable connection to various parts.
    I'm the Board Guide of the Referrers ,Telephones, Pensions , Shop Don't drop ,over 50's , Boost your income and Discount Code boards which means I volunteer to help get your forum questions answered and keep the forum runnning smoothly .However, please remember, board guides don't read every post. If you spot an inappropriate or illegal post please report it to forumteam@moneysavingexpert.com Any views are mine and not the official line of MoneySavingExpert.
    • Hasbeen
    • By Hasbeen 16th Apr 19, 8:16 AM
    • 1,398 Posts
    • 1,036 Thanks
    Hasbeen
    • #9
    • 16th Apr 19, 8:16 AM
    • #9
    • 16th Apr 19, 8:16 AM
    Had same problem. If pc was running all ok. Switch off and would not turn back on.

    Had to use the hairdryer trick to blow though at the fan to get it running.

    Eventually found equivalent pcu and fitted it.

    Info was on label on pcu inside housing.
    • monome
    • By monome 18th Apr 19, 2:49 PM
    • 6 Posts
    • 1 Thanks
    monome
    Do you have or can borrow a compatible replacement PSU?


    It's also worth trying taking the battery out then try power up from the mains. Worked for me on an old laptop. Good luck.
    • Zandoni
    • By Zandoni 19th Apr 19, 6:10 AM
    • 2,941 Posts
    • 1,565 Thanks
    Zandoni
    It's either the PSU or Motherboard


    To test PSU https://www.youtube.com/watch?v=ixcWCrYpw3Y


    If the PSU is ok try removing other hardware from the motherboard and see if it powers up.
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