That is a nice oc paymon, but I'm with Enigma. I wouldn't run a sweet sl6rs or sl6s2 over 1.7 volts. You already have a killer multivid chip, and i wouldn't want to kill it over a few MHz. Of course you can do what you want, but I'm not that brave either.
What kind of oc do you have at lover vCore?
Skeetman