5870 Overclocking (Voltages)

[Skeng]

Hi i've overclocked my 5870 to 1Ghz and It runs understress at a nice 69 degrese with a nice 70% fan speed.

Lately I've been trying to see how far I can push the Mhz before it wont run properly and I've only managed to get it to 1010Mhz (core clock) and for (memory clock) 3015Mhz. I was hoping to increase the voltages but MSI afterburner only allows me to go to 1.35Volts is there anyway I can increase this?

 

[muppetkiller]

I have my volts at 1.275 and clocked at 1000/1300.
I would not go any more then 1.35 volts as you could risk damage to your 5870.