MVKTech - NiBiTor v1.9b released...
 

MVKTech has just released a new version of NVIDIA BIOS Editor (NiBiTor) software. This tool allows users to tune and edit the NVIDIA GeForce BIOS. This to gain some extra performance and stability on the NVIDIA GeForce graphics cards.

Changes in this Version
Fixed bug no voltage selection after extending
Fixed FX5900 OEM speeds
Corrected Quadro FX3400 & FX4000 detection
Fixed 6600 speeds
http://www.mvktech.net/content/view/851