Solved

MSI 970A-G43 Crossfire

I am planning to upgrade my computer but I am having some money issues. I currently have a Gigabyte R9 270 installed and I wish to crossfire another of the same card. Is this possible while using both of the card's Maximum power? It says on their website but I am doubting it cause of its such low price. Can someone please help me?

Thanks for you help, guys!
4 answers Last reply Best Answer
More about msi 970a g43 crossfire
  1. Best answer
    No, i do not recommend crossfire on this board.

    This board has two PCIE X16 lanes :
    1 PCIE 2.0 at X16
    1 PCIE 2.0 at X4

    This means crossfiring two GPU on that board would result of a double PCIE 2.0 X16/X4

    The least acceptable would be 2X PCIE 2.0 X8 as it would already bring a 5% performance loss And from what i read, PCIE X16/X4 has a performance loss over double X8 ranging from 2% to 25 % with an average of 10%

    So you would not get an as good boost as you think since motherboard restriction. Also, what is you Power supply ? to make sure it can handle it.
  2. Thanks for you help! Thank god I asked before I just bought the second card! It was my first time doing Crossfire
  3. pierrerock said:
    No, i do not recommend crossfire on this board.

    This board has two PCIE X16 lanes :
    1 PCIE 2.0 at X16
    1 PCIE 2.0 at X4

    This means crossfiring two GPU on that board would result of a double PCIE 2.0 X16/X4

    The least acceptable would be 2X PCIE 2.0 X8 as it would already bring a 5% performance loss And from what i read, PCIE X16/X4 has a performance loss over double X8 ranging from 2% to 25 % with an average of 10%

    So you would not get an as good boost as you think since motherboard restriction. Also, what is you Power supply ? to make sure it can handle it.



    I was considering the same board for crossfire. But now i doubt it. Could you suggest another board ?
  4. Crossfire friendly board cost more as is require a better chip (990FX) for better support over crossfire or SLI :

    I would recommend this one :

    PCPartPicker part list / Price breakdown by merchant

    Motherboard: Asus M5A99FX PRO R2.0 ATX AM3+ Motherboard ($107.98 @ Newegg)
    Total: $107.98
    Prices include shipping, taxes, and discounts when available
    Generated by PCPartPicker 2015-02-23 18:08 EST-0500

    Very good board for overclocking and crossfire. it support a full 2X PCIE 2.0 x16 which mean no performance loss. again, don't worry about lanes being 2.0 and card being 3.0, PCIE 2.0 Lanes bandwidth is good enough that you will not notice performance loss. ( about 3-5 %)
Ask a new question

Read More

Motherboards Computers Crossfire R9 270 Maximum Gigabyte Graphics Cards MSI-Microstar