Postcode

Decrypt POST-card codes, LED indexing of audio signals and BIOS passwords

Postcode program is a database with a user-friendly interface decoding POST-card codes. The program also recovers BIOS beep codes, describes the LED indexing. There is still an opportunity to view a variety of universal passwords BIOS.

POST-card (sometimes called POST-tester or POST-board) - expansion card having its own digital indicator and it will appear on the initialization code of the motherboard. At last outputted code you can determine which component has a fault. These codes are dependent on the BIOS of the motherboard manufacturer. In the absence of errors and normal POST test gives passage to your display does not change during operation of the computer value depending on the version of BIOS, for example, on most cards issued by FF code initialization is complete.

POST-tester can be configured in a variety of options. For example, POST Code Dual display indicator has two sides, there is no need to extract the motherboard for reading the information from the indicator. Also on all POST-testers installed LEDs indicate the presence of +5 V +3.3 V +12, -12, and the LED signal RESET (meaning not restart «Reset» button). Sometimes other lights are added. POST testers have different connectors for connecting, for example, PCI, ISA (older models), miniPCI (laptops) and even LPT (for motherboards that have passed POST-signal to the LPT port).

Port POST-signal output - 80h, but there may be other (by the way, some testers have a port setting), mostly 81h.