You have chip set cooling, good!, what i meant was that most DS3 boards cannot go to or over SB. If yours does, your lucky. And if your happy with that O/C then by all means do it
There is a "dead zone" between 400-420fsb that even tho you show a higher oc, your benchmarks are the same as they were for 400fsb... Its kinda like "clipping" your amplifier.. You turn up the volume, but nothing gets louder past a certain point... So unless you really think you can get over 420fsb, I wouldn't worry about anything but 400fsb..
BTW I found with 2 different cpu's that 401fsb posts, but 400fsb won't... So if 400fsb doesn't post, try and increase it to 401fsb..
I plan on buying another E4300 .. I want to compare my E4300 with the newer week 2 production E4300's... So I will test both cpu's on the same GA-965P-S3, ram, hdd, etc.... I know my mobo can hit 400fsb with the E4300, so maybe I can see if a larger % of the E4300's can too... I think the oc on an E4300 is more chipset dependent then anything.. Maybe I can show some evidence to support that idea, or show that it is possible to see 400fsb on newer 4300's..
I'll let you know the results....