Locked Voltage On My GPU (R9 series) Have tried everything!

[AsraX1]

Hello everyone, i have been trying to overclock my graphics card but can only get a tiny over clock because my voltage slider is locked. Ive edited the .cfg file in MSI afterburner-didnt work. I tried using trixx-didnt work. I switched bios-didnt work. I dont know what flashing a bios would do but if it unlocks the core voltage just tell me how to do it or send me a link on how to .

PC Specs-

GPU- Sapphire Radeon R9 280 Dual OC Edition

CPU- Intel I5 4590

Motherboard- Gigabyte GA-B85-HD3

PSU- FSP Aurom S 600w- 80+Gold certified

ETC...If you need to know anything else just let me know                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             

[Naijin]

In the MSI Afterburner settings under the General tab you should have "Unlock voltage control" ticked. That way you should be able to do it in MSI Afterburner.

[AsraX1]

I have already done that, forgot to mention that in the first post.