Asrock Z77 Extreme4 - Offset mode issues

[Kinsy]

Feel like a nubje asking about this but...

2500k, Z77 Extreme4 - first Asrock board, not a bad board.

Manual voltage at 1.3v, 4.5ghz is no problem running Prime95. Switch to Offset Mode and it's a different story. I have to go with around -0.030v, resulting in 1.36v to get it to boot. Once I'm in Windows I can adjust the offset to get it to 1.3v and it's fine.

I've been playing with adaptive turbo voltages but these haven't helped. What am I missing?

 

[Kinsy]

Played with LLC and got nowhere.

However turning off C states sorted it. I don't really want these to be off though. Any way around this?

 

[Kinsy]

No it will enter idle without them - just won't step inbetween 1600mhz and 4700mhz with them off.

It's either there a) isn't enough voltage to at any of the between multipliers or b) when the mutliplier jumps up to 45/47 the board can't ramp the juice up fast enough. Since I've played with LLC extensively & tried the turbo mode offset voltage (its at +0.043v atm) I'm not sure what else I can do!