I really need some help here guys, I am at the end of my tether with this.
I took off the Heatsink to re apply some thermal grease as it seemed to be running a liitle warm (not hot by any means around 52) & when I replaced everything the machine would not boot yet I could get into the Bios etc, I did a fresh install & everything went fine until I checked in the "Task Manager" there to my suprise it was only showing 1 core & not 2, I took the CPU back as I thought it was faulty, it was changed for me no problem, I then put the new CPU in & rebooted with still the same problem showing, I did a fresh install with the new cpu yet again but it is still only showing 1 core, core temp is not picking up the other core either.
Has anyone got any Ideas as I have just about had enough of this now.
Thanks.

I took off the Heatsink to re apply some thermal grease as it seemed to be running a liitle warm (not hot by any means around 52) & when I replaced everything the machine would not boot yet I could get into the Bios etc, I did a fresh install & everything went fine until I checked in the "Task Manager" there to my suprise it was only showing 1 core & not 2, I took the CPU back as I thought it was faulty, it was changed for me no problem, I then put the new CPU in & rebooted with still the same problem showing, I did a fresh install with the new cpu yet again but it is still only showing 1 core, core temp is not picking up the other core either.
Has anyone got any Ideas as I have just about had enough of this now.

Thanks.