I have the dual 1.25 MDD, the HS Appears to be extruded.

Right now I can still boot Mac OS 9.22

If I found 1.42 cpu's for this thing, wonder if Mac OS 9.22 would have any issues?

all i saw on ebay was this one running @ 1.40

http://www.ebay.com/itm/PowerMac-Mac-MDD-G4-DP-Dual-1-40GHz-CPU-Processor-820-1470-A-/400328914870?pt=CPUs&hash=item5d357677b6