RAM slot on the motherboard
RAM slot on the motherboard
You're seeing a mismatch between the physical RAM slots on your Gigabyte B450M S2H board and the reported usage in tools like CPU-Z or Task Manager. This could be due to incorrect settings, a faulty connection, or a misconfiguration in the system. Check the RAM modules for proper installation and ensure both the board and software are correctly recognized.
The BIOS reports the slot count as a simple value. It's conceivable that Gigabyte acquired the BIOS from another model, such as the Gigabyte B450M DS3H, made minor adjustments, and then released it, though they may have overlooked updating the physical slot count.
Task Manager would likely be the first to point out the error, probably aligning with what @mariushm mentioned
Task Manager isn't considered the most reliable method available. Simply disregard it, since it clearly isn't communicating correctly with the operating system.