Current Mobo and 2.1 PCIe GPUs

I'm planning on picking up a 5850 or 5870, haven't decided fully yet.

I noticed they are 16x 2.0 or 2.1 PCIe cards.

I haven't really looking into the whole 2.0 thing, but I went back on my newegg order history and checked out the specifications on my Asus P5B-Deluxe I bought back in Dec. 2006.

I noticed it just says 2x PCIe x16. Will my mobo fully support the new cards? Want to make sure before I pull the trigger.

Here's the mobo for reference:

4 answers Last reply Best Answer
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  1. Best answer
    people with PCI-E x16 mobo tend to have issues with 2.1 cards, some boards work with a BIOS update and some don't. Your best bet would be

    1) check with owners of that mobo & your manufactures web site
    2) get a 2.0 card and you will have no issues
  2. Okay so 2.0 is fine and 2.1 is the issue?

    I noticed for instance, Sapphire uses 2.0 for 5850/5870s while Asus uses 2.1.

    I was actually looking into the Asus since it seems to run cooler from reviews, but I should probably pick up the Sapphire instead?

  3. 2.0 is fine
    2.1 may or may not work, you will have to do more research on your motherboard
  4. Best answer selected by Strife025.
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