I did a bit of searching on the site as well as google and from what I can gather, I cant change clockspeeds in my HIS 6850's bios using RBE. But from what i can gather in a few other threads, I can increase my voltages via the "GPU Registers" option in RBE. I had a few questions before I try this: 1. Is that the only place I change the voltage? Do I leave all the voltages in the clockspeeds themselves be? 2. Does this require a different hash? Or does that only apply when changing the clockspeed? I removed my clockspeed limit using Afterburner so i have no issues setting clockspeeds using CCC, i just wanted to bump my voltage up since i'm on water. EDIT: Hmm i'm skeptical, i didnt see the CHIL chip on the card when i looked and its also not like this http://www.techpowerup.com/reviews/HIS/Radeon_HD_6850/images/front.jpg It's the same color, and came with that same heatsink, but the vrms didnt have a heatsink on them. If it cant be modded i guess i'm not heartbroken, at 1030/1230 and it seems to be stable so far.