Originally Posted by 7ranslucen7
Just wondering, does the "ausum" switch actually do anything other than bump the default clocks? I seem to overclock just fine 1.25v @1000 core without it using ab.
You should use the AUSUM switch, because on BIOS 1, you will have throttling because of PowerTune!
**Really important read for everyone here
*** This is well explained in Anand 6990 review, for those that want to read more about TDP, throttling, Powertune, and differences between BIOS 1 and BIOS 2 on the 6990.
BIOS 1 (default BIOS, non-OC) = TDP limit of 375W, and THROTTLING with PowerTune will occur if you go over that
. There is automatic throttling that will kick in in Furmark, or if you go over the max TDP.
BIOS 2 (AUSUM or OC BIOS) = NO TDP LIMIT = NO THROTTLING = NO POWERTUNE!
Major difference! So be really careful if you try to OC. Don't go over 1.3v and with a waterblock only.
So don't raise your voltage too much with stock air cooler or you will burn your card to dust! Just do this with a waterblock! Anand were able to reach a TDP of around 675w on OC BIOS!!!!!!
And that's a big advantage compared to the Nvidia 590, since that Nvidia card is full of OCP and throttling, even in games, at driver levels.
MUST read before you OC that card!
Thread starter, you should put those links and pics in the first post!
http://www.anandtech.com/show/4209/a...e-card-king/18Edited by Levesque - 4/3/11 at 6:24am