As POST checks your computer, it looks to a record of data stored in CMOS RAM that tells what kinds of components
are in your PC. Specifically, it records what type of video card, floppy drives, hard disk, memory and so forth are
contained in your PC. POST will test your computer based on what it believes is in your PC ... if the information is
missing or incorrect, the PC may not be able to recognize or use certain components in your system. It's important to
keep a record of what specifically is inside your computer, and that you have a record of what is written into CMOS
RAM.


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