Why 2-Quad Core E5520 showing only 1 processor in XP

[idata]

We have a system running Windows XP Professional, with 2-E5520 quad core processors.

When we boot the system Task Manager/Performance tab is only showing 1 available processor (vs 8). It also behaves that way, that is 1 job takes 100% (vs 13%) of CPU. My guess is that this is a BIOS setting problem. This system was showing 8 processors in Task Manager prior to the system disk crash/corruption last week so we needed to reinstall Windows.

I am trying to help our systems guys find a solution. Any ideas as to what happened and or how this can be corrected?????

Jim S

[idata]

Make sure multi-threding is in on state in BIOS setup.

[idata]

Thanks Ravihara:

In the interim they decided to just re-image/reinstall. This solve the problem. For those that encounter this in the future I believe this link may be of help

http://www.handaware.com/multiprocessor_XP.html http://www.handaware.com/multiprocessor_XP.html

Jim

[idata]

Thanks for the link. its having worth knowing details. great.!