http://www.theinquirer.net/gb/inqui...ure-infamous-l3

三級緩存裡存在的一個核心Errata錯誤不但使Phenom四核心處理器無法運行在更高頻率上，也大大影響了其性能表現。所幸的是，AMD正在積極解決這一問題，而且初見成效，新處理器的性能也有望提升5-10％。
Phenom的這個bug會導致操作系統被鎖死，而且帶來了5-10％的性能損失，還嚴重制約了超頻能力，使得AMD目前只能發佈2.2GHz和2.3GHz的版本，2.4GHz或更高的只能等待。
據悉，AMD計劃通過升級微代碼消除這一問題，完成時間應該不會晚於明年一月底，因為AMD要在那時候發佈Phenom 9900 2.6GHz，之前還會有不鎖倍頻的黑版Phenom 9600。
已經發佈的Phenom 9500/9600實際上同樣存在這一bug，但影響並不明顯。如果用戶不想留著這種隱患，AMD也提供裡解決方法，就是把修正代碼整合在主板BIOS裡，更新後即可擺脫惡夢。
At the same time, problems with the OS freezing were solved by a BIOS fix inside the motherboards that actually reduces performance between five to 10 per cent, since that BIOS update did nothing but ordered a processor to avoid that ill-fated corrupted cache data.
The problem with L3 cache caused performance reduction on all clock speeds and yes, Phenoms 2.2 and 2.3 GHz are affected as well, but it was really noticable at 2.4 GHz. BIOS run-around caused a 2.4 GHz part producing performance of 100-200 MHz slower parts. Of course, standard disclaimer in some rare-found, practically laboratory-only instances applies here.
We managed to learn that AMD was able to fix that problem through a micro-code update that is being prepared as we speak, and this micro-code update should be implemented in every Phenom from 9600 Black Edition and beyond. If that does not happen, micro-code should come no later than Phenom 9900 (2.6 GHz) in late January.

B1 B2 Errata列表
http://www.amd.com/us-en/assets/con..._docs/41322.pdf