700mhz wall on HD4850 is smashed.

[DemonEyez]

160/500?

Mine is 500/750 core/mem in 2d mode. I am using the asus bios, but my HIS bios is the same as well.

He's right, the new MSI bios is version 011.004 and not 011.003 like your HIS and Asus bios.
It differs from the HIS and Asus (and other 003 biosses) that in 2d mode, the clocks are 160/500 and not 500/750. I think this is a better adaptation of Powerplay, I wouldn't be surprised if with this new 004 bios, the card only uses around 25W in idle mode

Just flashed the MSI 011.004 bios into my Asus. Just like the Asus 011.003 bios I can still run 700/2300 without errors/artefacts.
Right now I'm modding the MSI bios for higher 3D clocks, just to see if I can do 705MHz on the core.