asus 6800le/td no go for bios V-mod??

[LuckyBud]

Hi there,

I've an asus v9999le/td and tried to perform the bios mod. I used nbitor 2.1 but changing the Vcore Vids didn't affect anything. I've flashed it several times with diffrently modified bioses and rivatuner always shows the changes I made.
But if I proof it I still got 1.24V and my core stays at 400 . Smartdoc also shows 1.24v.
Am I doing something wrong or is it true: no go for the asus?

I need some help because I would have to remove my heatsinks from the card to do the hardware mod with the VRs and last time I removed some heatsinks from a card I broke off one of the mem chip so I had to buy this card.
I used the same glue so I don't want to try it again...

It's an asus v9999le/td Rev 1.01 with 2.2ns from samsung (I think) 400/920
Hope somebody can help with this, Thx...