Mixing HD 7950 with R9 280x

[coldbreeze16]

I'm going to buy 2 R9 280x to add to my line up of HD 7950 for mining. What AMD drivers would be most appropriate?

Also I'm thinking about switching from Win 7 on a hard disk to either Xubuntu or SMOS 1.2. Are there any overclocking utilities for linux since the command line parameters for set vddc don't work?

[1714890612]

1714890612

[Wipeout2097]

Use Catalyst 13.12. There are modded drivers out there if you connect 5 or more cards. Someone said he could run 7 cards on Win 8.1 with standard drivers.

You can install Windows 7 on a 32GB USB pen http://www.rmprepusb.com/tutorials/win7onusb
I have a system mining that way

[atp1916]

You will need SGMiner 4.0.0.

CGMiner doesn't like mixing different -g 1 and -g 2 (gpu thread) cards in the same config.

[coldbreeze16]

You will need SGMiner 4.0.0.

CGMiner doesn't like mixing different -g 1 and -g 2 (gpu thread) cards in the same config.

That's what I was looking for. Thanks. I'll be running two 7950 and two R9280x on one system with xubuntu 12.04. Can't I run two instances of cgminer one handling 7950s and one with R9's?

[atp1916]

You theoretically could, but i've seen limited success even with that type of config.

SGMiner is pure awesome.  I'd give it a shot.