I've not built a new rig since my DFI NF4 Ultra and FX60 so I've been out of the scene for some time.

Just put the rig together a couple of weeks ago in my sig. Been working on the OC for the last week and have a couple of questions.

In order to get my Bclk stable at 210mhz I have to use 1.52v QPI/Vtt, I've seen several other using the same mb and Bloomfield processors acheive the same Bclk and higher using lower Vtt and some much lower in the neighborhood of 1.3v. I'm guessing since the memory controller is on the cpu that Bclk limits are determined by the cpu? or more of a mb limitation?

Also I'm running 7-8-7-24 timings at 1680mhz would the timings affect the required Vtt?

I've hit a wall at 212-213mhz Bclk and can't get stable at that speed regardless of Vtt or multiplier. Plus I'm already at a such a high Vtt that I'm affraid to go much higher. BTW the GB x58A-UD5 I'm using defaults at 1.52v when left at AUTO in bios and Blck is set to 200mhz.