Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > SLI or Crossfire without 4x6pin PCI power... how?

SLI or Crossfire without 4x6pin PCI power... how?

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - SLI or Crossfire without 4x6pin PCI power... how?

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ponchato   04-28-2009 at 05:17:37 AM

http://www.newegg.com/Product/Prod [...] 6817139002

Some of the reviews say they're running in SLI or Crossfire, but how can they do that with only 2 6-pin PCIe power connectors? It's the same story with other PSUs, too.

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Silver CPUs badge JohnnyLucky   04-28-2009 at 06:04:36 AM
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Lets say you want to use two Radeon 4890 video cards in CrossFire mode. Each of the cards requires two 2x6 PCI-e power cables. Your Corsair HX620 only comes with two 2x6 pin PCI-e power cables. Each 4890 video card comes with an extra adapter cable. The adapter cable has two 4 pin molex connectors on one end that are connected to the power supply and a 2x-6 pin connector on the other end. Your problem is solved.

In the event your video cards do not come with the extra power adapter cable you can always order them for a few dollars from an online vendor.

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Message edited by JohnnyLucky on 04-28-2009 at 06:07:06 AM
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ponchato   04-28-2009 at 06:10:43 AM
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JohnnyLucky wrote :

Lets say you want to use two Radeon 4890 video cards in CrossFire mode. Each of the cards requires two 2x6 PCI-e power cables. Your Corsair HX620 only comes with two 2x6 pin PCI-e power cables. Each 4890 video card comes with an extra adapter cable. The adapter cable has two 4 pin molex connectors on one end that are connected to the power supply and a 2x-6 pin connector on the other end. Your problem is solved.

In the event your video cards do not come with the extra power adapter cable you can always order them for a few dollars from an online vendor.


Oh, wow. Haha, that was a little more obvious than I thought it'd be. Thanks :)

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