LPT port 4 bit diagnostic card for Desk pc and notebook

pc mainboard diagnostic POST debug analyzer card : LPT port 4 bit diagnostic card for Desk pc and notebook

SPECIFICATION:
(1) It is fit for both laptop and desktop with the parallel port (LPT) to which POST codes is output.
(2) The value of four-bit-code PC Analyzer's "initiative code" is specified and it is "0000" or "FFFF"."initiative code" is clear at a glance. While the value of conventional two-bit-code PC Analyzer's "initiative code" is uncertain and man is unable to distinguish accurately by unaided eye.
(3) Court defects by difference sounds coding with build-in speaker?
(4) It can diagnosis the motherboard signal which show the problem of CPU, Memory, display card and so on?
(5) You can thumb through the codes that has gone. If you press the switch the code pause ,If you press the switch again ,the code continue?
(6) Fully compatible with any kind motherboards which has the Printer port for notebook and desktop.