in fact an a64 CAN run ddr-1066 modules... my 4400+ never wanted to pass 1066... with same sticks, BUT
my 5000+ NON-BLACK ran ddr-1156. on 5-5-15, it were crucial ballistix ddr-800 modules, but in this proc they even ran with two sticks of corsair dominators 1066 paired. was never a problem on this clocks and timings.
i believe it has do with the quality of the IMC... from what ive heard a 3.4ghz overclock is pretty good for an 5000+... maybe it is a little gem..
an upgrade to an 955 would double to quadruple your performance in applications, dont know how much it will bring you in games, but after i upgraded from a 3.4ghz a64 to an 3.8ghz ph955, my physics feel so fluid, i will never run a dualcore again, if its possible. if you have the money, get it.
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