XP Sees only a single processor for a Dual Core Opteron. How do i fix it?
 

I actually need some computer help...go figure!

I have a Dual Core Opteron 180 running on an a8n32-sli deluxe motherboard.
The bios + POST message both show 2 logical processors as they should but XP still sees only one processor.

I go in to system Devices and then click Processors it shows Two processors. When i run apps like Cpuz or some of the AMD Tools they both report only one processor. My SMP apps run like shit compared to the other opteron 180 i got so i know SMP isnt enabled.

Things I've Done:
Fresh Install of XP
Flashed To the latest BIOS For the motherboard
MSConfig -> BOOT.INI -> Advanced to confirm /NUMPROC was not checked.

Anyone care to shed some light on this problem of mine?

Did you updated your windows xp?

XP Has been updated with over 60+ Security fixes, updates, etc.

Still got only one processor showing :(

I am Running XP Pro as well

dont you need the xp64 edition ?

You need that for using the 64 bit operations, but not necessarily for dual-core operations.



Anyway, this may be a solution?
http://support.microsoft.com/?id=896256

Looking into it but i'm not sure it will and i still have to get in contact with M$ to get the hotfix. It's weird that my other box works flawlessly