Okay, so I got my 2500K Sandy Bridge the other day and it had run fine until recently, when my system (task manager, CineBench, and CPUZ) started describing it as a 1 core 1 thread CPU. In my device manager it shows four 2500K's each working fine with no problems. I checked the BIOS of my ASRock P67 Extreme4 Mobo, and the CPU is set to full cores. Also, I ran the command -
wmic path win32_processor get name,numberofcores,numberoflogicalprocessors /format:list
The info it returned was Core i5 2500K @ 3.3 GHz
Number of cores: 1
Number of logical processors: 1
What do I do?