Overvolting/Overclocking a Sapphire R9 270x 4gb with OC

[Christian V.]

I plan on upgrading whenever the new r9 300 series comes out so I've been trying to overclock my 270x. The only problem is, I can't seem to unlock the voltage slider in msi after burner so I can only reach a stable core clock of 1090 and a memory clock of 1475 before artifacts and questionable behavior begins to appear, so if any of you in the community know what to do, it would be great if I could get some help.

[91wow]

http://forums.guru3d.com/showthread.php?t=338906

 

It's unofficial but it works for most people

[Mr.Reggin]

http://forums.guru3d.com/showthread.php?t=338906

 

It's unofficial but it works for most people

when i do that it says access denied, when i wanna save the changed cfg file

[Christian V.]

same here

[91wow]

when i do that it says access denied, when i wanna save the changed cfg file

Im not sure then, it's how I've done it and never really had a problem with it. It might just be that your GPU just can't be over voltated.

[91wow]

same here

Not really sure then. It's worked for me in the past, i've done it on a few 7870GHz and they did it fine. Might be a hard lock down on your GPU, maybe?

[xAcid9]

Can you overvolt with Sapphire Trixx software?

[Christian V.]

No, not at all