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Computer won't turn on :(

Discussion in 'Hardware' started by Rez, Sep 14, 2004.

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  1. Rez

    Rez Thread Starter

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    Ok, I've just got home and my computer will absolutely NOT turn on. I press the power button and nothing happens. Tried checking the power button connection to the motherboard and that the plug socket works correctly but all seems in order.

    What's going on!??
     
  2. Cheeseball81

    Cheeseball81 Retired Moderator

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    Sounds like power supply. Have you checked the power cord?
     
  3. Cheeseball81

    Cheeseball81 Retired Moderator

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  4. Rez

    Rez Thread Starter

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    I've tried a different power cord but to no avail. I've also now opened up the power supply itself but doesn't look like anything has blown.

    I remember when I shutdown the system last night it suddenly cut out but there wasn't any bang or anything I just thought it was a bit strange.

    It's a 230W Macron Power PSU for the record.
     
  5. Jynx

    Jynx

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    if it was working before, and you didn't do anything and it isn't working now at all, i'd lay money on the power supply.

    if you have a voltmeter, plug the p/s in and see if you have any current at all (check the net for the proper pins to test, i don't have that handy at the moment). however, if you don't then just go and buy a new power supply and save the receipt. if the new one works then you can throw the old one away, and if that doesn't work return the new one and let us know!
     
  6. Rez

    Rez Thread Starter

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    Ok, thanks for your help thus far. I shall order a new power supply and hopefully that will solve the problem.

    I checked all the connections inside the power supply and put it back together but that didn't help so probably best if I just buy a new one.

    Can I just replace it with any 230 V p/s?

    Also, I could just buy a new case for cheap with a power supply. How difficult is it to transfer all the components over to a new case?
     
  7. Cheeseball81

    Cheeseball81 Retired Moderator

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  8. Old Rich

    Old Rich

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    What kind of pc is it . . many of the Dells, HP's and Compaq's have a proprietary power supply with non-standard connections.

    wrs
     
  9. gotrootdude

    gotrootdude

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    First thing to do would be to disconnect all drives, USB devices, firewire devices and try booting. Many times a drive can be faulty and stop a PC from booting.. While you have the case open, do the smell test to smell for burning smells.

    Some PS's have a memory effect and need to be reset, if there's a large off/on switch on the PS itself then try flipping it off and on a few times before attempting to boot. Check any surge protectors and try different outlets.
     
  10. Rez

    Rez Thread Starter

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    Thanks for the site link. It says I need 221 Watts for my system.

    The PC was not built by a mainstream supplier such as Dell etc. - it was custom built and quite a lot of components have been added in over time.

    The system has worked for about 2 years with an extra DVD-Drive than it has now as well.

    I have an old Dell PC which I could nick the PS from but I'm not sure that would work. It's come from a P2 300 Mhz machine and says 'DC Output: 200W' on it.

    Fortunately, I don't use this system for general computer usage, only as a mail and intranet web server and for storage so it's not too urgent but obviously I need access to a lot of the stuff on it. For the record, the system contains the following components:

    AMD Duron 900 Mhz
    1 x 128 MB PC133 SDRAM
    1 x 256 MB PC100 SDRAM
    1 x 80 GB 7200 rpm HDD
    1 x 20 GB 5400 rpm HDD
    1 x CD-ROM Drive
    1 x Sound Blaster sound card
    1 x Geforce 3 Ti500

    If I needed to reduce the power needed, I wouldn't mind removing the CD-Drive, sound card and 128 MB stick of RAM temporarily.

    Thanks for your help.
     
  11. Rez

    Rez Thread Starter

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    Any ideas? It's getting urgent!

    Thanks
     
  12. Training

    Training

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    Have you confirmed that power is coming from the wall outlet? Try plugging a lamp or some other electronic device to make sure it works.
     
  13. Rez

    Rez Thread Starter

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    Yes, the monitor works fine running off the same plug.
     
  14. Rez

    Rez Thread Starter

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    Any ideas?
     
  15. etaf

    etaf Moderator

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    if you are adding things to the PC and its a home built - i would get a 350W PSU min.
     
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