Quote Originally Posted by pangingIII View Post
i just got a replacement board (one lan port not working on the old board). after a quick few tests of new board with all the old hardware i noticed that the chipset on the motherboard can affect quite a bit for VTT and IOH, my new board requires quite less VTT and IOH than the old one.
anyone experience this?


CPU VTT 1.21 (bios),
on the old board i needed to use at least 1.34-1.36 for 12GB RAM, uncore 18x and 1T...
Finally, your new board starts to look like my old board. I have got the first DFI-batch (R.A51) and don't need more than VVT=1.21 (BIOS) either. But as Eva is saying, the actual VVT can can be higher.

My board has a kind of "intelligent VVT-regulator", and adjusts the VVT according to the application, and can go up to 1.26v (depending on the load, and the software you using to read it.

I don't have a multimeter and never checked it but it would be interesting to see how high the "real" VVT goes. I always thought that the CPU-batch would play the most important role on VVT, and your finding is new and interesting.