Help! How do I use the other 3 cores in my i7 920?? I am only seeing core 0

[Elwin]

Hi.  Like I said, even in Task Manager all the processes are running on core 0.  I have at least 4 cores in that chip.

I'm totally at a loss, so please point me in the right direction.

Thanks for your help.

Elwin (lwin for short)

[BenYeeHua]

First, check your msconfig? It may disabled via there.
You may also using HWiNFO to see did it is still there, and there is a chance that it is broken, or just the BIOS refuse to showing/enable it, which is much harder to get it back...

[brandon02852]

Your BIOS may be configured to only allow one core.  Check your BIOS and enable all cores.