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E4420/22B Question

Question asked by MICROWAVE68 on Feb 2, 2010
Latest reply on Feb 8, 2010 by tabbott
I have a E4422B i had for quite a bit, recently the unit started developing issues with the mainboard, buying a new mainboard is not a option because of cost 
so i started to hunt for a parts unit, i found a E4420B with RF Problems so i figured i can take the mainboard from this one, it works however the serial# now doesnt match up and my 4422 only goes to 2GHz 
I tried the mainboard utility but it wont let me change the serial# or the unit model, any suggestions on how to do this ? i asume that if the flash would be cleared that the mainboard utility would let me change the model and serial # so is this assumption correct and if yes how do i do this ?