Pentium 4 3.4 GHz 2 MB L2 cache 800 FSB SL8Q5 R0 stepping 90nm manufacturing 77 watts at idle (Speedstep to 2.4 GHz) 158 watts w/processor fully loaded (3.4 GHz) Xeon 3050 (Core 2 Duo E6400) 2.13 GHz 2 MB L2 Cache 1066 FSB SL9TY B2 stepping 65nm manufacturing 81 watts at idle (Speedstep to 1.6 GHz) 110 watts w/processor fully loaded (2.13 GHz) Motherboard: Intel S3000AHV Operating System: Windows Server 2003 SP1 x86 Other than the processor, same hardware