Editing the 9800 GTX BIOS

Ok... Well I found some stable clocks on my 9800GTX and they are 780/1940/1160. That's as high as I can go on stock, which is weird because I hear all the time of people getting to like 800/2010/1200 on stock... So I decided to mod the BIOS. I downloaded NVFlash Nibitor v4.3 and I got the BIOS on the page, but when I edit the fan settings, they only do the "If reaches 108C, fan will run 100% until below 109C." I don't get that.... There's no dynamics I can set because when I do set them, nothing happens. It's weird. Oh! And the voltage thing... It's set at 1.15v and I can't put it any higher... How do I get like 1.16v on the drop down menu so I can select it? I'll send you guys screenshots of my Nibitor screens...







Thanks for the help in advance!