Introduction
This voltmod applies to all HD 4850 series cards using PCB #B50131-00.
The HD 4850 supports very limited voltage control via BIOS or software, only up to 1.20V
Disclaimer:
Performing these voltmods will void any and all warranties your video card may have.
You - and only you - are responsible for any damage caused indirectly (or directly) by these modifications.
Overview