Well, IMO, for 1x simple setting having a 5% performance increase/decrease is quite a impact. If it was 3 or 4 settings and it made a 5% increase/decrease I wouldn't consider it that bad. But to me, for one single setting making a average performance increase/decrease of 5% or more is quite substantual.
Also, as a anandtech review showed a few days ago, the hit can be 10% or more.
For one setting to make that kind of impact is important, at least to me it is.
Also, I have had NO problems running at 1T. I can run it at stock 200mhz 2-2-2-10-1T. And with the fsb at 260mhz on the 133mhz mem divider I can run the mem at 22210-1T timings.
I have 2x 512MB sticks of BH5 ram and put it on the high vCore setting whether it needed it or not. I really haven't checked if it needed the voltage or not to be honest.
Anyways, this is just my opinion on the matter. And the previous poster on the 1.30 bios not having working vCore settings looks to be correct. I don't know how Asrock could have let that past inspection.
I honestly do NOT think I will purchase another Asrock board. Although I have had no issues, I am not pleased with their bios makeup and the very limited control over the board. Ex: No vCore above 1.4v, a crappy dimm limit of 2.7v, and hardly no control over the memory timings and such. These features/controls are standards nowadays.
I really just do not like their bios design I guess. I guess I am just so used to Awards bios on my mobo's.
Jason