Quote Originally Posted by drnick View Post

A question for everyone here- has anyone had to raise VccSA for 4.9ghz+ stable overclocks? Some guides suggest raising VccSA in tandem with VccIO when using faster memory, tighter timings, or increasing the bclock. I'm running my memory at 1333mhz with loose timings, so I haven't increased VccSA or VccIO yet. However, I do have some decent ddr3-2000mhz sticks I'd like to use after cpu stability testing, and I'm wondering if folks have had to increase VccSA and or VccIO to run 8 GB of ram (2 x 4gb sticks) at 1866mhz or above.
No. I did some testing on an earlier BIOS and found that with 52+ and 1866MHz 6-7-6, it didn't respond to VCCIO for some reason, yet the VCCSA started to work in much the same way as the VCCIO normally would have. I'm still not sure if this is an isolated BIOS quirk with the hardware I have or if it's something worth looking into. Lsdmeasap tried it on a Gigabyte board and didn't see the same, but he was using Hyper modules I believe, and I was using PSC.

For 5GHz and below, with 1866MHz and say, CAS 8, you shouldn't really need much extra VCCIO.