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P5N-E SLI + GTX 580?

Link to the P5N-E SLI

http://usa.asus.com/product.aspx?P_ID=KyHOsOKWujC2QguJ


I am looking to upgrade my computer. I have looked into just buying a new rig, but after getting feed back from this great fourm I've decided upgrading is better.

So, now I'm looking to get a new GPU, I have an older mobo and don't know if it will support the newer cards that look SO great. Please help....

Here are the PCI slots for my mobo...

Expansion Slots 2 x PCIe x16 , Single VGA mode: x16 (Default), SLI mode: x8, x8
1 x PCIe x1
2 x PCI 2.2
6 answers Last reply Best Answer
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  1. If it has a PCI-E x16 slot it supports all modern GPUs.

    what is more important is if your PSU can support it. A minimum of about 450W and most cards can be used, a high end card may be better suited to a high quality 650W PSU.
  2. Best answer
    Quote:
    If it has a PCI-E x16 slot it supports all modern GPUs


    Not true, The card he gets must be compatible with the version of PCIe slot he has.
    ie - A GPU running PCIe v2.1 might not work in a PCIe v1.0 slot. The Galaxy gtx580 I just looked at is one such card. Its only backwards compatible to PCIe v2.0

    edited to add quote.
  3. I have confirmed that that motherboard has PCIe v1.0a for what its worth.
  4. 'Overall, graphic cards or motherboards designed for v 2.0 will be able to work with the other being v 1.1 or v 1.0.'

    From http://en.wikipedia.org/wiki/Pci-e

    The GTX580 should not run into any bandwidth issues with the PCI-E 1.0a.
  5. Best answer selected by mojotazman.
  6. my dad has a pcie 2.1 ati 5570 vid card with that motherboard working perfectly. So it will be compatable with pcie2.1 . There is also a BIOS update for the motherboard that fixes a problem with new ati cards taking a long time to initialise. I also have the same motherboard butt with an 8800gts. I would still not bother putting such a high end card in that mobo, it will be bottlenecked by whatever cpu you have unless you have an overclocked 4ghz core 2 quad. Im thinking of making a thread for a compatability list of pcie 1.x motherboards and 2.1 vid cards. In reality the pcie system is designed to be backwards compatable, but manufacturers that dont release a BIOS to support it is the problem.
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