the code of version 5004 is more credible ,POST card self-test is more detailedUser's guide of four-bit code POST card This User's guide is fit for the common computer post card (the PI0050) and the note book computer post card (M04). 四位代码形电脑主板故障诊断卡使用说明〔There are editions in Chinese for you to choose〕可选配中文说明书● Not only diagnose the trouble of main board but also the trouble of the POST card, keep users from misunderstanding .● More compatible with main board PIV, end the history that the POST card is unable to work as the main board update constantly.● You can consult the code that has run; Press the switch once and the code pauses● It do no harms to device while insert the card wrongly with a speaker on the card to remind you there is an error, SMD device that protect your hands.● Test the speed of PCI and ISA bus of the computer, you will get the result as soon as you test it. It can help you not suffer losses when you buy the computer, and also help you sell the computer that has a fast bus speed at good price. . CatalogueI、Front View 2II、Implication of word/number of four-bit code POST card 3 III、Flow chart 4 Ⅳ、Distinguish true and false 7Ⅴ、OBLIGATORY CONTENT 7 Ⅵ、Description of LED displays 8 Ⅶ、Error code table 8 Ⅷ、Description of beep code 30 Ⅸ、 Frequently-asked questions 34I、Front View This card named M04 is fit for notebook computer.This card that named PI0050 is fit for common computerII、Implication of word/number of four-bit code post cardword/NUMDescription0---Start automatic diagnosis after it displayed for about half a second1---The first function symbol of main menu ,then enter code consulting function after it displayed...