700mhz wall on HD4850 is smashed.

[gurusan]

How much voltage to get to 920 on the core?

Nice going! How much are you feeding the core? and what would you consider safe for 24/7 with water?

Mixture of pencil and bios modding for:

1.18V idle
1.48V load

I set .94v in the bios for the idle state so that it would stay at a low vGPU when not in use
I think 1.5ish under water would be fine if you keep it at a low idle voltage like I did so that it's not always getting 1.5v