HELP! atypical Mac Pro Firmware

[newtech]

My Mac pro MLB has atypical firmware on it. The EFI firmware updaters wont recognise the board preventing updates. Any help appreciated.

Model Name: Mac *( should read Mac Pro )*
Model Identifier: M43ADP1,1 *(should read MacPro1,1)*
Processor Speed: 3.0 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 8 MB
Memory: 4 GB
Bus Speed: 1.33 GHz
Boot ROM Version: AAPLM431.004E.B00 *( should start MP....)*
SMC Version: 1.7f0
Serial Number: System Serial#


FTR
processors are overclocked Xeon E5340 engineering samples.