Dual Core running as single after Repair

[teriyaki]

Due to a corrupt system file I did a repair using Recovery console. PC came back up with a few problems. Uninstalled most applications and Service Pack 2 and reinstalled. I have now noticed that my Athlon XP2 dual core processor is only running as one processor. In device manager it shows both processors and when the PC boots up it recognises that its a dual core processor. Yet when I run the Athlon utility that reports back processor information it only shows the one processor. Tried uninstalling the processors through device manager but nothing happens.
Does anybody have any ideas how to fix this before I do a reinstall of windows?

Cheers,

 

[rexter]

You need to check Windows Task Manager in Performance if it is infact 1 or 2 CPU is active.

Download and install AMD Athlon 64 X2 Dual Core Processor Driver and AMD Dual-Core Optimizer. see if that help.

 

[imthinking]

Also make sure you download the Microsoft dual core update here:http://support.microsoft.com/?id=896256.