In most cases you get to reinstall Windows along with drivers for that board.
But you do run the risk that the Windows you have was locked to the old motherboard. I know you didn't know to tell all the details but prepare yourself for a fresh install and possibly having to buy a new Windows license.
Some thought that the Windows that came with the Dell was theirs to use if they installed a new motherboard but the license is tied to the machine or more specifically the motherboard. There are some thousand discussions about that so I'll stop here.
Bob
I know hardware but not soft. I am replacing mb in gx280 desktop. Question is willl I have to reload Windows or will the new mb recognize the operating system on the HD and run it instead of a new download. Thanks much.

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