[Problem] Phenom X3 8450e recognised as two core

[xtrabit racing]

Hi guys. Just replaced my Athlon 64 X2 5400+ cpu with triple-core Phenom X3 8450e. But at task manager, i see only two cores. Updated bios, same. Using W7 sp0 :)

Searched, but nothing :(

MOBO is Asus M3A78-EMH HDMI

Will W7 SP1 help me? Or just reinstalling os? Any ideas?

[codger]

Have you tried running msconfig, boot, advanced, select number of processors and restart?

[Alwaysonacoffebreak]

It's very uncommon but check your BIOS if your 3'rd core is even unlocked. There have been cases when it hasn't been unlocked on the setup yet.

Why I say uncommon is because the x3's are usually Quad-core chips with 1 core locked down due to instability or other reasons AMD saw necessary.

[xtrabit racing]

Have you tried running msconfig, boot, advanced, select number of processors and restart?

WOW! Thanks. That!