PIII SMP

[Bob Bishop]

Hi,

At 15:10 30/7/03, John Stockdale wrote:
>Alright its been awhile since I bought PIIIs but I looked around ...
>let me just be another person to first reiterate the need that both
>processors be the exact same model, stepping, revision. This can be
>verified by one of the spec codes on the box (I forget which one).
>Different steppings = good chance that they won't work in a SMP setup.
>Also a warning I came across from the page (
>http://www.intel.com/design/pentiumiii/prodbref/ 
>index.htm?iid=ipp_dlc_procp3p+prodb_p3p& ):
>
>* Note: Pentium® III processor at 1.33, 1.20 and 1.13 GHz does not
>support Dual Processor. Please refer to the Pentium® III Processor
>Quick Reference Guide for dual processor capability listed by processor
>s-spec.

That may not be accurate/up-to-date:

>FreeBSD 5.0-RELEASE #0: Fri Apr  4 17:09:01 BST 2003
>     rb at goliath:/usr/src/sys/i386/compile/GENERIC-SMP
>Preloaded elf kernel "/boot/kernel/kernel" at 0xc0683000.
>Preloaded elf module "/boot/kernel/acpi.ko" at 0xc06830a8.
>Timecounter "i8254"  frequency 1193182 Hz
>CPU: Pentium III/Pentium III Xeon/Celeron (1130.12-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0x6b1  Stepping = 1
> 
>Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE
>real memory  = 1073676288 (1023 MB)
>avail memory = 1036320768 (988 MB)
>Programming 24 pins in IOAPIC #0
>IOAPIC #0 intpin 2 -> irq 0
>FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>  cpu0 (BSP): apic id:  0, version: 0x00040011, at 0xfee00000
>  cpu1 (AP):  apic id:  1, version: 0x00040011, at 0xfee00000
>  io0 (APIC): apic id:  2, version: 0x00178011, at 0xfec00000
>[...]
>SMP: AP CPU #1 Launched!
>[etc]


--
Bob Bishop		    +44 (0)118 977 4017
rb at gid.co.uk		fax +44 (0)118 989 4254