BIOS POST codes

About BIOS POST codes

Quite often, visitors to this resource request “How to configure the BIOS?”, “How to boot from a USB flash drive,” “BIOS Setup Setup on a laptop,” and so on.

This resource contains a huge number of options - directives that have ever been encountered in the BIOS of many manufacturers. Not to get confused in such a quantity even to a prepared person is not easy. Therefore, this summary article was written, which will write out the most popular and important items.

After the test POST-code is recorded in the Manufacturing Test Port, the procedure for testing the corresponding equipment begins. If the testing procedure fails in the Manufacturing Test Port, the POST code of the last procedure remains (which caused the error). If you know the POST code of the last procedure, you can identify the device that caused the error.
Reading POST codes can be done in several ways. If your motherboard has a built-in indicator of POST-codes, you can learn information about the POST-code of the last procedure from it. The POST-code of the last procedure performed on some systems may be displayed on the monitor screen during the POST procedure. A special expansion card can be used to read POST codes. Since the BIOS is produced by several manufacturers, respectively, each BIOS of an individual manufacturer has its own table of POST codes.