EXTERNAL POST motherboard tester BY PARALLEL PORT - 4-digit display

For DESKTOP or PORTABLE PCs, parallel port interface.
Compatible with the vast majority of motherboards, including the latest (Socket A, 478, 775, 939, 754...). Compatibility more important on desktop PCs than laptops.
This tester will enable you to quickly diagnose the origin of a motherboard failure without having to open the cover of your computer. This model allows you to break down your motherboard's self-test step by step. It also has a self-test function to check that it's working properly. Error codes are displayed visually. Method: Turn everything off, remove all components from the motherboard, insert the tester into the parallel port, and connect it to a USB port using the supplied cable, then start up, inspect the voltage diodes and validate the voltages, inspect the code obtained and refer to the manual, or to the manufacturer's bases, turn everything off. Insert the components, then start
Inspect the code obtained and refer to the manual, or to the manufacturer's databases.
Using the control buttons:
When the tester has finished its test phase, you can use the 'up' and 'down' buttons to navigate between all the stages that made up the POST test, and thus obtain the test result at each stage. The first two digits indicate the sequence number of the test, and the last two the error code obtained.
In addition, when pressed at the same time, they enable the tester to perform a self-test, guaranteeing its correct operation.