Thanks Antari

I started to doubt about the P5K deluxe... but then i realize is the batch, week or luck...

primed vcore=1,5 (450x8) 3 minutes one core failed
primed vcore=1,5 (400x9) 10 minues one core failed

I tested lots of configs, ram separate, then drop it to DDR2 800, well days testing with no luck, needs more vcore

I think i will need 1,525 to stable...

And the last one that killed me was to see that hole between (464x7) and (490x7) i was expecting to do 3,4Ghz at least with (x7) but very unstable and then when i could boot, loose the cores....

So....

Thanks for all
Best regards
Sergio