re: PC Discussion - Gaming, Performance and Enthusiasts

There's a crossfire bridge in the box. I would install the 280x as the first card and move your 7970 to the x16 slot below it.

Connect the PCIe power and the crossfire bridge


Your PC might need to reboot once or twice trying to detect the new card and new placement.

If you haven't already, download and install MSI Afterburner.

Click settings, and tick the box to Disable ULPS. Click OK, and you'll have to reboot again.



Use MSI afterburner to bring your 7970's core clock to 1000 and memory clock to 1500 in order to match your new 280x. Move the power limit slider all the way to the right on both cards.

Note: Power Limit will be 20% on your cards rather than 50 (I'm using 290s).