NiBiTor (NVIDIA BIOS Editor) is a free utility to tweak your nVidia GPU bios and change the sign-on message text & color, GPU & memory clocks, hidden features like SBA (Side Band Addressing) and much more.

NVIDIA BIOS Editor (NiBiTor) supports all BIOS's on Geforce5, 6 and 7 GPU series cards, the software does not require any .dll, and will work under any version of Windows 9x/ME/NT/2000/XP.