Yes, essentially that is what they are for. The cards are still 'on' technically, and I believe there is some way to wake them up from this state that we are not aware of.
http://www.overclock.net/t/1088266/ulps-gui-config-utility-enable-disableI have not used that^ program, not necessary imo. Trixx and Afterburner can usually sort out ULPS for you, if necessary.
Is that the 7950 at 502 kh/s?
That's basically what I'm getting with reaper with 24000 thread concurrency and 13.6 beta at stock clocks. There's further tweaking you can do probably at stock settings to get a little more hashrate, however everyone getting 600+ is OCing afaik. There's an ideal core to clock ratio that also seem variable even to a bios version level. Start around .7 ratio and go down (probably) looking for improvements.
Oh also, you can usually get over 500 kh/s from 6970s at around 950/1320 with reaper. I use 8144 thread concurrency and two or 4 threads, 18 aggression.
Thanks for the tips.. i`ll try them out.
I don't run trixx or Afterburner... but i`ll install them on the miners