Thanks,i'm glad my bios worked out for you.
Also,if you are going to use riva tuner,then reset your clocks to stock on overdrive and exit out of it.You can then go as high as you can on riva tuner.If you oc higher than 700 using riva with ccc running,it buggers up and shows zero's for the clock speeds.I had to reboot is all to sort it,but if you exit ccc you dont have to reboot.
What i do is reset to default clocks on overdrive and untick the use overdrive box,then exit out of ccc so it is not running.
Then run riva tuner and oc the clocks as high as you like to test.When you are done,then reset the clocks in riva to default and exit.
Then run ccc again,if it dont show proper clocks in overdrive you need to reboot.
For normal use,i just use overdrive to oc it to 700/1100 which is fine for my games/resolution.
How high did you get on overdrive? 700/1100 work?
If you are going to use xfired cards,maybe a zalman vf1000 might not block the card to card cables,i am unsure though.