Quote Originally Posted by grimeleven View Post
They had to mod the BIOS so it boots with lower clocks so YES it had something to do with the BIOS. There might have been stability issues but it was the memory being too high that caused the overheating on these, just by downclocking the ram it was able to cool down itself with the stock cooler, below 50c. No flickering/crashes/bugs ever running 6 months, ofc not all cards the same. Notice the difference since the 4870 http://www.driverheaven.net/reviews....842&pageid=20#

What ATI talked about stability loss is when they lowered the CORE clock, not the ram, hell i even ran it at 100mhz no problem.
No, they couldn't down clock the memory due to the flickering that was caused by the state change, I believe. They couldn't implement a bios fix for the 4800series because it wouldn't do anything to fix the flickering, since it was most likely caused by the early GDDR5 memory controllers.