Both my gpu's are idling at around 48 C, which is what the single card was before SLI. knowing this, i decided i'd just tweak up the clock speeds just a tad. however, with coolbits, whenever i increase the core or memory by even 1 mhz, i fail the stability test even though my gpu is cool enough. then i tried rivatuner...same thing. is sli overclocking disabled in drivers or something? is there a way i could do this?