7 Replies Latest reply on Feb 5, 2010 6:24 PM by Ytterbium

    Determining 64 bit capability from processor ID?




      I am trying to figure out whether a Xeon processor is 64 bit capable.  I have used the dmidecode software to get the processor ID and other info as below.  I don't see "64" appearing anywhere, so I assume it is 32 bit only?  Can anyone confirm or deny this?


      Thanks very much in advance.


      Processor Information
              Socket Designation: Microprocessor
              Type: Central Processor
              Family: Xeon
              Manufacturer: Intel
              ID: 0A 0F 00 00 FF FB EB 3F
              Signature: Type 0, Family 15, Model 0, Stepping 10
                      FPU (Floating-point unit on-chip)
                      VME (Virtual mode extension)
                      DE (Debugging extension)
                      PSE (Page size extension)
                      TSC (Time stamp counter)
                      MSR (Model specific registers)
                      PAE (Physical address extension)
                      MCE (Machine check exception)
                      CX8 (CMPXCHG8 instruction supported)
                      APIC (On-chip APIC hardware supported)
                      SEP (Fast system call)
                      MTRR (Memory type range registers)
                      PGE (Page global enable)

                      MCA (Machine check architecture)
                      CMOV (Conditional move instruction supported)
                      PAT (Page attribute table)
                      PSE-36 (36-bit page size extension)
                      CLFSH (CLFLUSH instruction supported)
                      DS (Debug store)
                      ACPI (ACPI supported)
                      MMX (MMX technology supported)
                      FXSR (Fast floating-point save and restore)
                      SSE (Streaming SIMD extensions)
                      SSE2 (Streaming SIMD extensions 2)
                      SS (Self-snoop)
                      HTT (Hyper-threading technology)
                      TM (Thermal monitor supported)
              Version: Not Specified
              Voltage: 1.7 V
              External Clock: 100 MHz
              Max Speed: 2000 MHz
              Current Speed: 1700 MHz
              Status: Populated, Enabled
              Upgrade: ZIF Socket
              L1 Cache Handle: 0x0700
              L2 Cache Handle: 0x0701
              L3 Cache Handle: Not Provided



      Also, if this is helpful, it is running linux, and cat /proc/cpuinfo gives (for one processor):


      processor    : 1
      vendor_id    : GenuineIntel
      cpu family    : 15
      model        : 0
      model name    : Intel(R) Xeon(TM) CPU 1700MHz
      stepping    : 10
      cpu MHz        : 1695.423
      cache size    : 256 KB
      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 mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
      bogomips    : 3389.28