Quote from: c33fax on April 26, 2013, 09:28:05 PM

Cool.

I've got an old Radeon HD5570 that does about 50M/hash - could I stick that in my extra PCIe slot? would it work together with the 7770 ?

Yep that should work for mining. Just put it into the second PCIE Slot. On first boot windows should recognize it and install the drivers. If it doesn't you might need to reinstall the catalyst drivers. Afterward your mining software should be able to use both cards. Most miners will require you to start one instance per card.

Also in that setup I highly recommend to not use crossfire bridges and crossfire mode for gaming. Even if crossfire supports combining those two cards their performance difference is so different you might see performance decrease in game rather than increase.