Check F2 bios under the Processor information; it appears they have been limited to 2 cores per processor, which would be the reason you are only seeing 8 threads.   Change the setting to ALL.  Under logical processor, make sure hyperthreading is enabled as well. Regards,
Hi friend.  I have R410 and install 2 CPU of X5570 and RAM at 32 (8x4GB) Some body can tell me, Something wrong?  Why show only 8 thread in Task manager. And how can i fix it.  Best Reagrds Joe
Why R410 CPU 2 x X5570 show only 8 thread in Task manager