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Compatibility of Power Color HD Radeon 6970 with Intel DG33 FB

Hey this the Expansion Slot Configuration of My Intel DG33FB original motherboard

Expansion Slot(s) 1.0 x PCI Express x1 ( 1.8 V ) - DIMM 240-pin , 3.0 x PCI - LGA775 Socket , 4.0 x Memory , 3.0 x Processor , 1.0 x PCI Express x16


Will that be enough for Installing Power Color or Asus HD Radeon 6970 2GB Graphic Card
Interface PCI Express 2.1

I have bought Corsair GS 800 PSU for Powering the Graphic Card. My Processor is Intel Quad Core Q6600 with 4 GB DDR2 Ram ??
12 answers Last reply Best Answer
More about compatibility power color radeon 6970 intel dg33
  1. Best answer
    http://maqtech360.blogspot.com/2010/11/intel-desktop-board-dg33fb.html
    Is this your board?

    Your board only has PCI-E x16 1.0 or 1.1, not sure whether it's support 2.0 or not, but IF it's NOT then you can't install HD 6970 to that board (since it's an old board with LGA 775).

    I think the best card you can try is HD 57xx series (as long as it's NOT 2.1 cards).

    Anyone can confirm this issue?
  2. Please refer the tomshardware link below:

    http://www.tomshardware.com/forum/249006-31-express-motherboard
  3. Yes, I read your link, theoretically it's all backward compatible, but many issues from people when using 2.1 cards on 1.0/1.1 pcie slot.
  4. There is no 2.1. Every card ( also 2.0 ) can give a problem. It might work or not.
  5. Have you tried updating to the latest BIOS?
  6. Tamz_msc said:
    Have you tried updating to the latest BIOS?


    yeah.. I have the latest BIOS updated .
  7. So, is it that the motherboard will compel the graphics card to work half bandwidth and performance that of its original capability ??
  8. So, looks like I have to buy a new motherboard and processor altogether. Please suggest about configuration mentioned below I m planning to buy now.

    1. Asus P7H55 16GB DDR3 Motherboard
    2. Intel Core i7-2600 3.40 GHz Processor
    3. Asus Radeon HD6970 2GB GDDR ATI PCI E Graphic Cards (EAH6970 DCII-2DI4S-2GD5)
    4. 2*4 GB DDR3 RAM
    5. NZXT EVO Tempest Gaming Cabinet and
    6. Corsair Gaming Series GS 800 PSU.
    7. Running 2*1TB 7200 RPM and 2*2TB 5900 RPM HDDs

    I was guessing about whether the card will fit into the cabinet ??
    Please give your suggestion about the config. I am to order the first three rest I already have ordered.
  9. Best answer selected by shubhankar_venkatesh.
  10. Sorry I am compelled to make some corrections here:

    wa1 said:
    http://maqtech360.blogspot.com/2010/11/intel-desktop-board-dg33fb.html
    Is this your board?

    Your board only has PCI-E x16 1.0 or 1.1, not sure whether it's support 2.0 or not, but IF it's NOT then you can't install HD 6970 to that board (since it's an old board with LGA 775).

    I think the best card you can try is HD 57xx series (as long as it's NOT 2.1 cards).

    Anyone can confirm this issue?


    I have an HD 6970 running on a LGA775 motherboard; it's PCIe 1.1 and it works great.

    PCIe (so far) is backwards compatible. The major differences are bandwidth and power rating.

    PCIe 1.0 and 1.1 are 250MB/s per lane in each direction (that's the x16, x8, x4, x1 you see in technical specs)
    PCIe 2.0 and 2.1 are 500MB/s

    so a PCIe 1.1 x16 slot is basically equal to a PCIe 2.0 x8 slot in terms of bandwidth.

    Tom has a great review that can answer more of your questions:
    http://www.tomshardware.com/reviews/pci-express-scaling-p67-chipset-gaming-performance,2887-9.html

    Quote from that review: "Enthusiasts on lower budgets will find a general performance loss of 2% to 4% when switching from an x16 to an x8 slot."

    But it looks like you have the budget for building a beast of a computer, so have fun!
  11. Thanks Dude... I have been waiting for this too long finally I am having it. :)


    GGTY said:
    Sorry I am compelled to make some corrections here:


    I have an HD 6970 running on a LGA775 motherboard; it's PCIe 1.1 and it works great.

    PCIe (so far) is backwards compatible. The major differences are bandwidth and power rating.

    PCIe 1.0 and 1.1 are 250MB/s per lane in each direction (that's the x16, x8, x4, x1 you see in technical specs)
    PCIe 2.0 and 2.1 are 500MB/s

    so a PCIe 1.1 x16 slot is basically equal to a PCIe 2.0 x8 slot in terms of bandwidth.

    Tom has a great review that can answer more of your questions:
    http://www.tomshardware.com/reviews/pci-express-scaling-p67-chipset-gaming-performance,2887-9.html

    Quote from that review: "Enthusiasts on lower budgets will find a general performance loss of 2% to 4% when switching from an x16 to an x8 slot."

    But it looks like you have the budget for building a beast of a computer, so have fun!
  12. This topic has been closed by Mousemonkey
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