Overclocking "Bulldozer"

[nusi]

Hi,
Anyone tried to overclock AMD Opteron 62XX "Bulldozer"?

I have bunch of AMD Opteron 6220, 6234, 6238, 6276 - and I want to overclock them somehow.
How it can be accomplished on server HP DL385 G7, which software will you recommend?
OS: Ubuntu.

Thanks in advance!

 

[Patriot]

Tpc, turion power control, you can force all cores to highest turbo bins.

 

[nusi]

Thanks, I have tried it, tpc gives me +5% in performance and +10% in power. Decided not to overclock.

 

[Patriot]

Thanks, I have tried it, tpc gives me +5% in performance and +10% in power. Decided not to overclock.

What is your memory config? Is node-interleaving disabled?
Would expect 10%+ performance gain.