Strange PSU prob

Mar 10, 2005
  1. Hi all,
    This is strange when I push my on/off button I get no power at all, there is a light on the motherboard.
    So I then turn off the off the switch on the PSU and leave it for about 20 secs and then turn back on and push the power on/off button and it boots up fine and runs ok.
    But when I then log off and power down if I try to go straight back or wait a while nothing happens and I have to go through the same procedure again (as above).
    This is a new motherboard (ASUS A8V Deluxe) and CPU (AMD 3500 939 64bit).
    PSU is an 450.

    Any help would be great

  2. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 6,503

    Check the small wires from the frontpanel of the case to the motherboard. They are probably not connected properly. Did you connect the square P4-powercable from the PSU to the mobo?
  3. R6MAD

    R6MAD TS Rookie Topic Starter

    Hi mate,
    Yes the P4 square cable is plugged in and I have checked the switch cable and seems ok. (But will check again) Would this problem happen if the switch cable was the wrong way round ? It was working ok until I changed my Motherboard and CPU.
  4. R6MAD

    R6MAD TS Rookie Topic Starter

    I tried another PSU I had in an older PC and it works fine so it looks like I have to go and buy a new one.

    Thanks for the help :(
  5. isatippy

    isatippy TS Rookie Posts: 497

    Some times the fuses go bad I would try replacing the fuse and see if that works. :hotbounce
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