Gigabyte GAMING OC 8GB overclock - undervolting issue/question

[TheShaman]

I am trying to change setting for doing overclock and undervolting.

Read a lot document and sample but having issue with under volting. This model a bit different than standard models. Please look the screenshot from taken polaris bios editor. Which areas should i change for over clock and undervolting


http://i67.tinypic.com/5xpwfn.png

It shows Vram Mhz Timing value until 0:1500. Some post in forum says copy 1750 to 2000 but it is not available at this model.

Best Regards