Originally Posted by WiIdfire
Ok in the same boat as many others here, out of the box my top card is unstable. Having read everything and fiddled for a few days I can make it stable but at a cost of noise. Basically what happens in heaven is that when the card hits 65degrees it drops the voltage from 1.175 to 1.162 and shortly afterwards crashes with the usual error message.
If I drop the speed from 1137 to 1111 the card still drops to 1.162v but the benchmark can now complete, with a maximum temperature of 73-74degrees. Note no amount of changing the maximum power changes this at 65 degrees the voltage always drops.
If instead of dropping the speed I up the fan profile so that it is hitting 80% at 70degrees the card now tops out at 63degrees under load and the voltage under load stays at 1.175 rather than dropping to 1.162, at this setting I don't crash at stock speeds. but it is quite a bit noiser and unfortunately it's a sort of whiney drone that's actually more annoying then the jet engine from my old GTX480.
Now it is my understanding that these cards are supposed to drop speed themselves when they hit 70degrees mine doesn't do that instead it seems to drop voltage at 65degrees which is crazy. When working hard you tend to need more voltage not less.
If my card is typical in this respect it looks like the max power doesn't really work properly as even set at 117% it was never getting above 103 but was still dropping voltage when 65 degrees was reached.
I'd suggest that the bios on the card needs sorting as all the elements don't seem properly controlled, if the card wants to drop voltage under load when it's hitting a temperature point surely it should also slow down a bit at the same time as the two should be linked.
For now I've just dropped from 1137 boost clock to 1111 with the max going to 1215 rather than 1241 under load, this seems rock solid at the 1.162 volts and around 72degrees at stock fan settings. Just about silent too and to be honest absolutely fine for any game I play.
It's hard to judge accurately what percentage of people are having issues because I assume most like me only came looking when they found they had a problem, but the issues seem pretty widespread and seem to effect other overclocked cards too, not just the really highly clocked Asus ones.
Now to keep it or RMA it that's the question, at current prices non top ones are just about what I paid for the top one so it's not a case of send it back buy a non top one and save a packet for the same performance. There is the obvious problem of resale value but I've never sold an old card yet, they sort of pass on down through the family so I'm not that concerned there either. I assume Asus will release a new bios that will probably alter the overclocked settings in some way to make all the cards stable, hopefully soon. So it really comes down to a question of how cheated do I feel that something I've bought doesn't do what it says on the tin against the hassle of returning it and getting an alternative that may also have issues.
What we really need is a statement from Asus as to their intentions and soon.