http://www.lostcircuits.com/cpu/P4-373e/8.shtml
this link shows the Clock generator of P5AD2-E.
There is an issue says that the clock gen of P5AD2 and P5AD2-E is different.
I checked mine and is the same (ICS 954123BF).
Oneyedk,can you check your Clockgen?What type and number is?