Intel Quad Zeon E5335 64bit processor?

Lewis Joshua joshua.lewis at
Tue May 8 17:27:24 UTC 2007

I wanted to run FreeBSD on a Dell PowerEdge 2900. It is running a  
quad Zeon.

Bellow is a clip from dmesg and I wanted to make sure I installed the  
correct FreeBSD version to support this system. I downloaded the  
AMD64 architecture version of FreeBSD. Did I choose the correct ISO  
to install on this server?

If so is there a central location or a good place to start reading  
about 64 bit processors so I can run this efficiently?

Also why does the first CPU show up as BSP and the rest show AP. What  
does BSP and AP mean?

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FreeBSD 6.2-RELEASE #0: Fri Jan 12 08:43:30 UTC 2007
     root at
ACPI APIC Table: <DELL   PE_SC3  >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(R) CPU           E5335  @ 2.00GHz (1997.02-MHz K8- 
class CPU)
   Origin = "GenuineIntel"  Id = 0x6f7  Stepping = 7
   AMD Features=0x20100800<SYSCALL,NX,LM>
   AMD Features2=0x1<LAHF>
   Cores per package: 4
real memory  = 2147123200 (2047 MB)
avail memory = 2061676544 (1966 MB)
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
cpu0 (BSP): APIC ID:  0
cpu1 (AP): APIC ID:  1
cpu2 (AP): APIC ID:  2
cpu3 (AP): APIC ID:  3

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