X850XT - your best overclock? volt bump?

[rox1co]

i'm currently running my X850XT at 575/600

i wanna see if i can run it any higher, is there a way to bump the Voltage? wut program could i use? i'm using ATI Tool but i don't see that option unless i'm blind, wut about on ATI Tool (Memory Timings), anything i can change?

also on this part (pci-express clock), can i bump that up any higher? if so, to wut

 

[Mayhs]

i managed to hit a 620/630 once and it was stable for a few hours...now when i try and do it it only lasts for around 20-30 mins...

a stable oc for me whilst gaming is 560/600 - 570-610.....then i dont gain much performance/not worth the heat/not worth volt modding to make it run faster...you have a nice oc there too

 

[rox1co]

i'm just curious to see how far i can push this baby yanno

i can't push my CPU anymore ... makes me sad, but i think i need better ram (DDR500 upgrade later)

anyways, is there a program i can use to bump my GPU Voltage? i don't see it anywhere in my Bios or ATITool

 

[contaminant]

I play it safe with 555/600 clocks. I could probably do more but I don't need the extra heat or performance. As for changing voltage IDK, never needed to.