This thread is not updated any more so I'm not posting more unlocking results, I have more 550's to show, mostly 0925, APMW, BPMW, CPMW and APMW are not unlocking very well, more they come more they fail to unlock, BPMW is better batch so far and the last one I have tested yesterday (CPMW) is a REAL BEAUTY!!! I'm in love with this cpu! Test configuration is from my Athlon II X4 620 thread, just switched cpu's to try it in the same watercooling conditions as 620 currently...

http://valid.canardpc.com/show_oc.php?id=737861

http://i34.tinypic.com/9kq91i.jpg

This is only idle stable but most of the successfully unlocked 550's that I unlocked were overclocking around 3800 idle stable with that cpu vid, so this one is my precious!

My personal X4 550 record is going down for sure
http://valid.canardpc.com/show_oc.php?id=678870