When I checked from BIOS it is showing only 2 Active Cores. If I am not wrong it was showing earlier 4 Cores. How can I verify that my motherboard is OK. I updated the BIOS but still I see only 2 Cores. This is my first 4 CORE Desktop so I have no clue. can anyone pls help. This box automatically reboots sometimes and some times I had to reset couple of times. I assembled this Desktop.