We ordered a G3 but got a G4 instead. DL380 G3 (No EM64T) running CentOS-3 i686 # cat /proc/cpu processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Xeon(TM) CPU 3.06GHz stepping : 9 cpu MHz : 3051.915 cache size : 512 KB physical id : 0 siblings : 2 runqueue : 0 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm bogomips : 6094.84 DL380 G4 (With EM64T) running CentOS-3 i686 (not using 64Bit) # cat /proc/cpu processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.20GHz stepping : 1 cpu MHz : 3200.267 cache size : 1024 KB physical id : 0 siblings : 2 runqueue : 0 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm lm bogomips : 6383.20 Perhps the lm flag? Otherwise, the model number (4). cpufeature.h seems to define the lm flag as X86_FEATURE_IA64 but I though that was EPIC... John. William Warren wrote: > considering those are xeon and not xeon "D"'s they are 32 bit. > > Robin Mordasiewicz wrote: > >> Ho can I tell if a new xeon is 32 bit or 64 bit ? >> > -- John Newbigin Computer Systems Officer Faculty of Information and Communication Technologies Swinburne University of Technology Melbourne, Australia http://www.ict.swin.edu.au/staff/jnewbigin