ASUS Z77 Motherboards - Official Support Thread

[Raja@ASUS]

Thanks for the reply. I got a 0xD1 Bluescreen at 4.8Ghz and more Vcore didn't help, temps were still below 80C, so I wanted to try some VTT/VCCIO.

Am I understanding you correctly that a VCCSA increase of 0.01V will also lead to a 0.01V VCCIO increase?

Yes, offsetting that will affect both rails by the same value. On IB increasing this voltage seldom makes a change.