Windows 7 doesn't detect either CPU.
Windows 7 doesn't detect either CPU.
Check for necessary drivers and software updates on your PC to ensure Windows 7 can detect your Intel X5450 CPUs. Since the motherboard is Intel S5000 PSL and you have 16GB DDR2 RAM at 332MHz, verify that the BIOS supports your CPU models. Also, look for any firmware updates or BIOS patches that might resolve compatibility issues. If the problem persists, consider running a system diagnostic or consulting the manufacturer’s support resources for CPU-specific fixes.
Ensure you're using Windows 7 Pro, Enterprise, or Ultimate on both systems.
I don't see a precise match but it seems W10 handles CPU limits differently—it doesn't restrict the count of physical CPUs, though it does affect core usage.
I discovered the confirmation, my earlier thought was incorrect: https://books.google.ro/books?id=Bc2bAwA...&q=windows 10 physical processors