TechSpot

Is my PSU enough?

By adamwhiles
Mar 24, 2008
  1. I am looking at buy a new video card a e-GeForce 8600GT the specs say this:

    Minimum of a 300 Watt power supply.
    (Minimum recommended power supply with +12 Volt current rating of 18 Amp Amps.)

    My current PSU has these specs:

    380 Watt
    +3.3V@30A,+5V@28A,+12V1@14A,+12V2@15A,-12V@0.6A, +5VSB@2.0A

    I'm confused about all this, can my current PSU support this card?

    Do you add both the +12V1 and +12V2 to get the rating?
     
  2. Matthew

    Matthew TechSpot Staff Posts: 6,074   +84 Staff Member

    As far as I'm aware, yes, you use the sum of your 12V rails, so yours would be 29A.

    You should be fine with that PSU.
     
  3. adamwhiles

    adamwhiles TS Rookie Topic Starter

    i was reading something about a separate power plug such as a 4pin molex one. I don't think this card has one. From my understand that means the card only pulls from on +12v. which means my psu is insufficient is that correct?
     
  4. Matthew

    Matthew TechSpot Staff Posts: 6,074   +84 Staff Member

    You probably have two 12V rails going to the motherboard. A 20/24-pin main connector and a 4/8-pin secondary connector. I don't know the power pull of the 8600GT off hand but I doubt it would be an issue honestly.

    What motherboard and PSU are you using?
     
  5. adamwhiles

    adamwhiles TS Rookie Topic Starter

    Power Supply is:
    Rosewill RV380-2-FRB ATX 12V ver.2.0 380W Power Supply

    Motherboard is:
    DFI RS482 INFINITY 939 ATI Radeon Xpress 200 Micro ATX AMD Motherboard
     
  6. Matthew

    Matthew TechSpot Staff Posts: 6,074   +84 Staff Member

    Aye, your motherboard and PSU have a 24-pin connector and the 4-pin secondary connector.

    Picture of your motherboard (stolen from Newegg):
     
  7. adamwhiles

    adamwhiles TS Rookie Topic Starter

    So you still think i'm in the clear with my current psu?
     
  8. Matthew

    Matthew TechSpot Staff Posts: 6,074   +84 Staff Member

    Could be wrong, but I don't see there being a problem.
     
  9. Tedster

    Tedster Techspot old timer..... Posts: 10,074   +13

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