Thinking of Buying New PSU

By EXCellR8 ยท 4 replies
Jun 19, 2007
  1. I was thinking about buying a new PSU for my system but I don't know if it is really necessary. I already have a 520w dual +12v rail PSU but my new 7800GS OC isn't putting out ANY video so I thought about upgrading to a 600w PSU would fix the problem.

    Here is a list of things the PSU must power:

    AMD Athlon XP 3200+ CPU
    AU31 K7M-NF18G (nForce2) mobo
    (2x) 1024MB DDR SDRAM gaming sticks
    GeForce 7800GS OC 256MB (AGP 8x)
    Creative Audigy4 PRO sound card
    WD 120GB hard drive
    WD 320GB hard drive
    DVD drive
    CD drive
    Floppy drive

    My 7800GS requires a minimum of "400w with a +12v current rating of 20A or more" to operate. I don't know the rating on my current PSU. Does anyone think a new PSU would do the trick?
  2. Billy213

    Billy213 TS Rookie Posts: 38

    550W run most cards and as yours isn't the most power hungry i can't see that as being the problem. What make is the PSU? and look for its power ratings on the side of it. Maybe its the card it self thats gone.
  3. halo71

    halo71 TS Rookie Posts: 1,090

    I would test out other possibilites before buying a new PSU. Like everything connected, graphics card seated properly etc. Unless your PSU really is on its last leg, I would think that would be plenty of juice to run that computer. As asked, what do you have in there now?
  4. EXCellR8

    EXCellR8 The Conservative Topic Starter Posts: 1,835


    My PSU is an Aspire (now Apevia) which I know isn't a real great brand. As for the card, its a replacement for the one I shipped back. I have tried absolutely everything to get it to work - BIOS settings, mobo drivers, registry scans. Nothing has worked so I turned to the PSU. The card puts out NO video whatsoever so WinXP does not boot and I cannot get into CP and DM. I'm completely lost at this point. The only thing I can access with the 7800GS installed is the CMOS settings and I have had no luck there either. Oh yeah and the card is seated absolutely perfectly and I have checked for broken prongs. Everything is where it is supposed to be. It just will not work.
  5. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

    Go to and read their tests/reviews of PSUs. They do torture tests from time to time. Their 2006 test was extensive.
Topic Status:
Not open for further replies.

Similar Topics

Add your comment to this article

You need to be a member to leave a comment. Join thousands of tech enthusiasts and participate.
TechSpot Account You may also...