What does FSB VTT do? How should it be set?

[badnewcastle]

All in the title.

 

[TC91]

i think it is the voltage for the front side bus, I had to bump mine from 1.2v to 1.3v to get my cpu prime stable @ 3.4ghz. 3.5 / 3.6ghz needed 1.4v to get prime stable.

made a thread a couple days back:
http://forums.anandtech.com/me...id=28&threadid=2206998

 

[ShadowFlareX]

Yes, VTT is the voltage for Front Side Bus (ASUS calls this the FSB Termination Voltage on their boards). This helps you when overclocking via the FSB. Don't set it too high especially on 45nm CPUs, no more than 1.45V. I set mine at 1.3V for 3.6GHz but personally wouldn't go over 1.4V.

 

[badnewcastle]

Ok, thank you for your answers. This might be the problem I'm having. I can't OC my board at all right now it is a new board because I RMA'd my old one but I've only been bumping the VTT by 2-4% and default is 1.2 so 2-4% probably isn't enough.

It's weird, when I oc my E6750 via FSB to 3.2, it won't post but when I OC to 3.4 via FSB it boots into Windows but isn't stable. So this weekend I will be working to stabilize things.

Please add any other input you might have.