tony, sure, but beeing cautious when raising volts is like a general thing...
everybody knows that ocing can and will damage your hardware sooner or later depending on how much you oc and overvolt it...

from what ive heard so far i wouldnt say k10 ocing requires extra caution when using high vdimm... it seems we have only 2 people with dead cpus from high vdimm... and we cant be 100% it was really vdimm what killed them.

kte, dont tell me that 900mhz mem clock was with anything higher than 333 timings!
2.9v vdimm with 444 or 555 clocks and only 900mz clocks would deserve some hehehe

how long did you run 2.9v?
is the mem still alive?
is the cpu still alive?
did you notice any degradation in memory performance?