[RESOLVED] Bad PSU or what?
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Thread: [RESOLVED] Bad PSU or what?

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  1. #1
    Join Date
    Apr 2000
    Location
    Friern Barnet, London, England
    Posts
    46,565
    If you have, or can borrow, a multimeter, here's how to test the power supply:

    Testing PSU Voltages

    ATX Power Supplies

    Trigger Power Supply for testing

    In depth look at the power supply

    Or alternatively you can buy a proper PSU tester, they don't cost much:

    PSU Tester

    ATX12V PSU Tester

    But as Midknyte says, even that doesn't absolutely prove that it's good. I too have seen them pass those tests with flying colours, but still refuse to boot the PC.
    Nick.

  2. #2
    Join Date
    Oct 1998
    Location
    Farmington Hills, MI USA
    Posts
    155
    I went and bought a new PSU and it did the same thing as the old one. GRRRRRRRRRRRRRR!!!!

    So I am going to have to return this $100 PSU.

    Now, I started removing all the PCI-e and PCI cards, I had a few. That is to no avail. Then I removed the RAM and turned on the PSU. Still the same thing.

    The last thing I did was remove the heatsink and PSU. Guess what, the PSU stays on, now. I haven't put the CPU back on yet but what does this mean????? Did my CPU die?


    There is hardly any paste left on the CPU/heatsink join. Could this be an issue?

    I need some advise as to whats next fairly quickly. THANK YOU!!!!!!!

    You guys are AWESOME!!!!
    my code doesn't break, it only bends

  3. #3
    Join Date
    Mar 2000
    Location
    Hyde Park, NY
    Posts
    2,047
    "There is hardly any paste left on the CPU/heatsink join. Could this be an issue?"
    You bet it can be an issue. Clean all the old stuff off the CPU and the heatsink with alcohol and apply new thermal compound and make sure the heatsink is correctly installed.

    Good luck
    Biostar TA790GX A2+ 6.0
    AMD Phenom X4 9750 CPU.
    4 Gig DDR2 Memory.
    ATI HD 5450 PCIe Video
    ATI HD 5450 PCIe Video
    500 Watt P.S.
    LG W2241T Widescreen 22" LCD
    ViewSonic VA721 17" LCD
    Envision 17" LCD
    2 LG DVD Drives
    Floppy Disk Drive
    Maxtor 120 Gig Windows 7 Home Premium 32 bit
    Gateway NV5378-U Windows 7 Home Premium 64 bit
    Acer Aspire V3-731 Windows 7 Home Premium 64 bit

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