PSU Maybe Faulty

Posted on 2009-04-21
Last Modified: 2012-05-06
Hi there i recently bought anew psu for my hi tech machine with a quad core processor and 2 ati cards crossfired i got it all connected, but when i turn off the machine my case lights still seem to stay on unless i turn off the psu on the back and its 1000watts is this normal and recently i keep getting a cpu fan error dunno if fan is faulty or if the problem i related to the psu.
Question by:digibyte86
    LVL 27

    Expert Comment

    Power supplies normally use 5 volts for the fans. I think it may be even -5 volts (It's been a while). At any rate, if the power supply has a fault there, that could be the problem. As for your case lights are you positive that the wiring is connected properly? You can normally check to see if your voltage is being applied properly by entering the BIOS. I don't know what type of system that you have. But as a rule if you hit F2 at startup that takes you into the BIOS. From there you can look at Power entries. As an example, my BIOS shows my power supply voltages and any errors that I may have.
    You might also want to make sure that your motherboard is rated for a 1K watt power supply. You can do this from your motherboard manual, or just hit the manufacturer's web site.

    Author Comment

    ok thnx for the info ill have a look tonight when i get home and reply asap

    Accepted Solution

    i found the problem the power cable for the usbs on the psu all i had to do was cut the red cable supposedly a fault on the psu i phoned hiper and they told me.

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