Noob ati questions. for OCing HD6850. (with afterburner)

[MustangSVT]

I am playing around with His HD6850 and so far it works fine on CCC oc wtih 850/1150. But that's max for the core so Im trying afterburner.

1.I noticed with afterburner it doesnt throttle down at all, is there a way around it?

2.even after i enable unlockvoltage and enable unofficial oc, i still cant change voltage. How do I enable this?

3.what is the safe temp for this card? ( its going past 72 and autofan is doing 47% with kombustor)

small update;
I found out that accelero is compatible with it and just installed it.
I did have to modify VRM heatsink (just cut it in about half size) but it fits!
and now with kombuster torture, temp is at 55!!! god i love this thing
and silent with 120mm fan!!

thanks

I've also noticed that after awhile (few hours of gaming (mostly sc2 these days)), CCC crashes.
game and computer is fine, but when I try to open up ccc, it gives an error and wont open.

trixx works fine and currently running testing with 1000/1150 on stock v.
mmmm tasty xD oddly, afterburner didnt work. only feature i liked is its osd in game feature.

 

[-Slacker-]

I can't get anymore speed out of my hd4770 when I overvolt it either, which is a bummer, because I've seen 4770's clocked at 1000 core and 1000 memory.

I don't think you should worry about the temps though, 72 is normal for a 6850 at 47% fan speed.

 

[RavenSEAL]

I get 920/1130 using trixx @ stock voltalge. With sapphires' cooler, 71C max on furmark, 52C while gaming.

for some reason, i can't go past 850 with afterburner, even with the unlock trick for clocks, i still have to clock manually as it won't save as a preset.

 

[MustangSVT]

I get 920/1130 using trixx @ stock voltalge. With sapphires' cooler, 71C max on furmark, 52C while gaming.

for some reason, i can't go past 850 with afterburner, even with the unlock trick for clocks, i still have to clock manually as it won't save as a preset.

can I use trixx with HIS?

and does it throttle down in desktop like ccc?