Need MSI OC HD4850 voltmod

[q head]

I have modded the bios on my MSI using RBE and have been able to get 700/1100 stable on the 1.2v bios max. I would like to bring it up to 750 since the OC edition cooler is pretty nice(copper base,four heat pipes, aluminum fins). I lapped the HS and also increased mounting pressure so my temps are now 52C max load with fresh as5. I have searched for 4850 volt mods but only found them for the 4850 vanilla. I googled this and came up with no answers too :( I do have some EE knowledge so if you have any suggestions i would definately appreciate it.

btw this is the version i want to volt mod if you look at the pics of the board it is way different than the others..
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127401

[mattkosem]

It looks like your card uses the same PCB as the 4830 that icewaere was modding on page 52 of the 4850/4870 vmod thread (http://www.xtremesystems.org/forums/showthread.php?t=190990&page=52). Check the correspondence between him and ceemic on that page and the next one for details.

--Matt