Hey so I just got my q9550 and I noticed one discrepency which is one of the cores stays the same like it's "STUCK" anybody knows if i should RMA this or thats ok??? And just to make sure plz tell me if this idle temp is ok???
I won't worry about it (Stuck Sensor or Idle Temps)...
I had a similar issue with my Q9550 for my Dad's build. It won't effect anything. It is just a sensor stock but plays no factor in the performance. Your temps are not too high to be a concern on idle. I would recommend running Prime95 for two hours an determine what you load temps are, which is much more important than idle temps.
I'd agree, your temps seem fine to me and I wouldn't worry about returning it unless it begins to cause problems which it shouldn't do. I can't recommend a good vcore value from my own experience for your processor. I would assume as low as possible whilst still being stable. However, have you read this guide from the Overclocking section of the forums?