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PSU 12v rate

Hi,

What is the difference of two 12v which is rated as 18.0 A from the one with 42.0 A rate.

I'm kinda confuse with this.

My assumption is you need to add the 2 12v to get the 36.0 A as its total rate?
10 answers Last reply Best Answer
More about rate
  1. It's the design of the psu and power delivery.
    Obviously one is a single rail design.
    The other a dual rail design.
  2. But almost all Graphic cards around requires a 24.0 A 12v PSU? does it mean it's still okay to run the Graphics Card in two 12v 18.0 A? Since it's total A is 36?
  3. spotminer said:
    But almost all Graphic cards around requires a 24.0 A 12v PSU? does it mean it's still okay to run the Graphics Card in two 12v 18.0 A? Since it's total A is 36?

    What psu and gpu?
  4. spotminer said:

    Yes i agree with your assumption 36A on the 12v rail = 432W.
    Plenty of juice for that combo.
    Intel Core i7 920(ES) @ 4.0Ghz (Turbo Mode Enabled) - testbed

    http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/41619-nvidia-geforce-gtx-550-ti-roundup-asus-evga-gigabyte-msi-16.html
  5. I see thank you very much, so that PSU can run the stated video card right? I will be upgrading my PSU and video card.
  6. Best answer
    spotminer said:
    I see thank you very much, so that PSU can run the stated video card right? I will be upgrading my PSU and video card.

    Full system load on that i7 920 overclocked was under 280w.
    You're good to go!
  7. Thanks a lot
  8. Best answer selected by spotminer.
  9. This topic has been closed by Mousemonkey
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