Howdy, stranger! Ready to join the community? [log in]

Single Rail PSU Solves CrossFire ( & SLI) Problems

Omega65 February 28, 2006 8:11 AM ET in Tech

According to The Inquirer switching to a single rail PSU can solve some problems you might have running dual video cards.

ATI key motherboard designer John Bruno told us that a single rail PSU is better than a multi rail PSU. He reported that ATI had some issues with multi rail PSUs while all of the single rail 500 W + PSUs were running fine. It turns out that both OCZ Power stream 600 W PSU and Akasa 650W PSU are using more than one power rails.

We got a nice link where one of the top overclocker, our good friend Sampsa had the same problem with 600W multi rail PSU and A8R-MVP board and two X1900 cards in Crossfire. He solved its troubles by switching to a single rail 560W PSU. You can check the post here.

Well, Well, Well

Source: The Inquirer

Share |

3 Comments:

  1. lemonlime
    Veteran Icrontian
    28 Feb '06, 9:28 am

    Yep, I've been a big advocate of hefty single rail PSUs for quite some time. I dislike having the amperage split across weaker rails. It is sometimes difficult to judge exactly where the heft of the draw will be.

  2. Omega65
    EPoX Evangelist!
    28 Feb '06, 11:25 am

    PC Power & Cooling latest Monster PSU The Turbo Cool 1K Has 3 12v Rails, 1 36A and 2 16A Rails

    Of course you can dual boot 2 Sparkle Power FSP550-60PLG 550watts +12v@36A (if you have the space) and achieve the same thing at 40% of the price

  3. madmat
    Gone
    28 Feb '06, 1:32 pm

    The trouble is that UL (I think it's UL) won't certify a PSU with over 25A on the 12V rail so that makes many PSU mfg's shy away from offering PSUs that can't be certified.

Hey, be nice. Icrontic is full of good people, we promise.

New Features on Icrontic: