Putting in a second 7950

By Hamfish
Jul 5, 2013
Post New Reply
  1. Hey guys I have decided that I'm going to buy a second 7950 and I am wondering what I have to do to install it correctly when I already have one installed
  2. Spykezxp

    Spykezxp TS Booster Posts: 278   +70

    Check your power supply to make sure it can handle the additional 7950. For a system using two Radeon HD 7950 graphics cards in 2-way CrossFireX mode, AMD specifies a minimum of an 700 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 46 Amps or greater and have at least four 6-pin PCI Express supplementary power connectors.
  3. Jad Chaar

    Jad Chaar TS Evangelist Posts: 6,473   +963

    What are you system specs? You need a PSU that can handle xfire like Spykexp said. Also, you need a motherboard that can run 2x 7950s @ x8 + x8.
  4. Hamfish

    Hamfish TS Rookie Topic Starter

    I have a thermaltake 750w bronze certified power supply ( can't remember the exact model, I'll check it when I get home) and a asus sabertooth 990fx r.2 motherboard

    I'm pretty sure I my computer can handle it it's just my worry is what I have to do to get the card running properly in crossfire with the other

    Ok my psu is Thermaltake smart series Sp 750m
  5. Blkfx1

    Blkfx1 TS Evangelist Posts: 826   +192

    That MOBO is fine. It allows for Dual x16 links for SLI/CFX. As for the PSU, it should also be fine. It's not most reputable brand when it comes to PSU's but it should get the job done.
    hellokitty[hk] likes this.
  6. Jad Chaar

    Jad Chaar TS Evangelist Posts: 6,473   +963

    Yeah, you can easily xfire.
  7. St1ckM4n

    St1ckM4n TS Evangelist Posts: 2,920   +627

    ...Make sure you use the crossfire bridge.
    Jad Chaar likes this.
  8. Jad Chaar

    Jad Chaar TS Evangelist Posts: 6,473   +963

    Sometimes you screw up the simplest things xD.
    St1ckM4n likes this.

Similar Topics

Create an account or login to comment

You need to be a member in order to leave a comment
TechSpot Members
Login or sign up for free,
it takes about 30 seconds.
You may also...

Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.