IBM-compatible PC POST
- verify CPU registers.
- verify the integrity of the BIOS code itself.
- verify some basic components like DMA, timer, interrupt controller.
- find, size, and verify system main memory.
- initialize BIOS.
- pass control to other specialized extension BIOSes (if installed)
Moreover, what are the steps in the boot process?
Although it is possible to break down the boot-up process using a highly detailed analytical methodology, many computer professionals consider the boot-up process to consist of five significant steps: power on, POST, load BIOS, operating system load, and transfer of control to the OS.
Similarly, what is the post process? Answer: POST stands for “Power On Self Test.” It is a diagnostic program built into the computer’s hardware that tests different hardware components before the computer boots up. The POST process is run on both Windows and Macintosh computers.
Additionally, what is the Post Power On Self Test and what can be done to troubleshoot this process?
POST troubleshooting steps. The POST (power on self–test) is a set of procedures that a computer runs through each time it is turned on. It ensures that all of the system’s hardware is working properly before trying to load the operating system. If the computer does not pass POST, it will not boot.
What is the order of boot sequence?
The devices that are usually listed as boot order options in the BIOS settings are hard disks, floppy drives, optical drives, flash drives, etc. The user is able to change the boot sequence via the CMOS setup. Boot sequence is also called as boot order or BIOS boot order.