Complete code summary of computer motherboard fault diagnosis card

Complete collection of computer motherboard detection card codes:

Generally speaking codes:

FF, 00, C0, D0, CF, F1 Or nothing means that the CPU failed

C1, C6, C3, D3, D4, D6, D8, B0, A7, E1 means that the memory failed

24, 25, 26, 01, 0A, 0B, 2A, 2B, 31 means that the graphics card is no more than

C1, C6, C3, 01, 02. This combination of cyclic jumps is mostly due to I/0 failure or BIOS flashing

Extended information

Motherboard fault diagnosis card: It uses the test results of the BIOS internal self-test program in the motherboard to display them one by one through codes. Combined with the code meaning quick lookup table, you can quickly know where the computer fault is. Especially when the PC cannot boot the operating system, the screen is black, and the speaker does not beep, using this card can further reflect its convenience, allowing you to get twice the result with half the effort.

The BIOS performs self-tests on the system's circuits, memory, keyboard, video part, hard disk, floppy drive and other components every time it is turned on, analyzes the hard disk system configuration, and configures the basic I/O settings Perform initialization and boot the operating system after everything is normal. Its distinctive feature is that the critical components are tested first based on whether the monitor can display.

Failure of a key component forces the machine to shut down. If there is no cursor on the display, there will be no response on the screen. Then, test the non-critical components, continue to run the faulty machine, and insert the card into the expansion slot when the monitor has no display. According to the code displayed on the card, refer to which BIOS your machine belongs to, and then find out the cause and location of the fault represented by the code, you can clearly know where the fault is.

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