Is the OS stored on the motherboard?
Windows and other operating systems and files are always stored on a hard drive, not a motherboard.
So in computers, Operating System is installed and stored on the hard disk. As hard disk is a non volatile memory, OS does not lose on the turn off.
OS compatibility (or supported operating systems) is not defined by the Intel® Xeon® processor or a server's chipset, but it is dependent on the operating systems supported by the server motherboard or system.
In a modern PC, RAM is used to hold the operating system and any open documents and programs that are running. RAM can be read from and written to. The contents of RAM can be changed at any time by overwriting it with other data and instructions.
If you make significant hardware changes on your device, such as replacing your motherboard, Windows will no longer find a license that matches your device, and you'll need to reactivate Windows to get it up and running. To activate Windows, you'll need either a digital license or a product key.
Your computer's operating system (OS) manages all of the software and hardware on the computer. Most of the time, there are several different computer programs running at the same time, and they all need to access your computer's central processing unit (CPU), memory, and storage.
The SSD has only 2 gig in use and on top of that, the OS is usually always installed on the C drive, which is not your SSD in your case. And no, a store will not install an OS to the SSD unless you tell them to because the OS is already preinstalled.
The operating system is loaded through a bootstrapping process, more succinctly known as booting. A boot loader is a program whose task is to load a bigger program, such as the operating system. When you turn on a computer, its memory is usually uninitialized. Hence, there is nothing to run.
In the event your computer requires a motherboard replacement, all data stored locally on your computer will be lost and will no longer be recoverable.
It's important to note that one must reinstall Windows when they change the motherboard of their PC. This ensures that all drivers work as expected and get optimal performance from the newly built computer system.
Can you move an OS to a new motherboard?
If the motherboard is upgraded or replaced for reasons other than a defect, then a new computer has been created. Microsoft OEM operating system software cannot be transferred to the new computer, and the licence of new operating system software is required.
BIOS access and configuration are independent of any operating system because the BIOS is part of the motherboard hardware. Irrespective of whether or not an operating system is installed, the BIOS functions outside of the operating system environment.