First off, I have the p8p67 pro. And yes, I have all cores enabled in the bios.
So when I first installed Windows on my new sandy bridge setup, the task manager and cpuid both showed my 2600k as having 4 cores / 8 threads. But now cpuid is only showing 2 cores / 4 threads with hyperthreading enabled. When I disable hyperthreading, cpuid shows 4 cores / 4 threads. Both coretemp and realtemp will give temp readings for 4 cores when hyperthreading is disabled, and only 2 cores when hyperthreading is enabled. To make this even more weird, windows device manager shows 8 cores with hyperthreading enabled under the CPU collapse.
So essentially Windows device manager is the only thing correctly reporting my CPU when hyperthreading is enabled. Cpuid, coretemp, the taskmanager, and realtemp only show the 2600k as having 2 cores. Even prime 95 is sharing this phenomena - only loading 4 cores whether or not hyperthreading is enabled.
What is going on????
So when I first installed Windows on my new sandy bridge setup, the task manager and cpuid both showed my 2600k as having 4 cores / 8 threads. But now cpuid is only showing 2 cores / 4 threads with hyperthreading enabled. When I disable hyperthreading, cpuid shows 4 cores / 4 threads. Both coretemp and realtemp will give temp readings for 4 cores when hyperthreading is disabled, and only 2 cores when hyperthreading is enabled. To make this even more weird, windows device manager shows 8 cores with hyperthreading enabled under the CPU collapse.
So essentially Windows device manager is the only thing correctly reporting my CPU when hyperthreading is enabled. Cpuid, coretemp, the taskmanager, and realtemp only show the 2600k as having 2 cores. Even prime 95 is sharing this phenomena - only loading 4 cores whether or not hyperthreading is enabled.
What is going on????
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