Okay, I just found out the hard way that 1242MHz on the memory is my 295's upper limit on air, I went one step further (1260 I think) and it bsoded out. Well, that brought to my attention that, either because of the BSOD or because of the driver, on reboot the desktop wasn't expanded to the HDMI output anymore which kept the second GPU from folding, again. The only way to expand it was to take out the dummy and plug it back in, only after this expanding worked again. Now the second client still didn't want to get back to folding, so here's the second peculiarity about this card/driver: start up the second GPU's folding, then the 1st ones.
Learning by doing, lol.
Edit: Did a standard reboot because GPU1 dropped out of it's high clock and needed to recover. The desktop wasn't expanded again, also I needed to fiddle with the HDMI plug again. But this time I was able to start GPU0 first and then GPU1.
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