There is no display when the computer is turned on, and the motherboard has a di di di alarm sound,

See if your memory is reversed?

Unplug the memory module and plug it back in. It is best to check whether the other boards are loose.

There are several possibilities, but generally these two possibilities are relatively large: 1. The memory is loose or the memory is not in good contact with the motherboard (the surface of the memory pins is oxidized), it is recommended to reseat the memory, try a few more times, if it doesn't work, change someone else's memory to try, if it doesn't work, it may be 2: The problem with the graphics card, re-insert it or try another one.

That's not called the motherboard error, that's the buzzer, I'm listed below, you can check it yourself 1 long 3 short: keyboard controller error.

1 Short, 3 Short, 1 Short: RAM refresh error.

1 long and 3 short: memory error.

Award Bios Upstairs has been introduced to me to another AWI BIOS:

1 Short: The memory refresh failed. To solve the problem, replace the memory module.

2 Short: The memory ECC verification error is incorrect. Solution: Go to CMOS settings and turn ECC verification off.

3. Short: The basic memory of the system (the first 64KB) failed to be checked.

4 Short: The system clock is wrong.

5 Short: CPU error.

6 Short: Keyboard controller error.

7 Short: System? b style='color:black;background-color:#99ff99'>'s J sauce beetle Huang Rui Xie Bad Award; J Jian?

8 Short: A memory error is displayed. Note: The memory of the graphics card is referred to as the video memory.

9 Short: ROM BIOS check and error.

1 long and 3 short: memory error.

1 long and 8 short: A test error is displayed.

Phoenix Bios (the previous owner had many Poenix on it, which has now been acquired by Award).

1 Short: The system starts up normally.

1 short, 1 short, 1 short: The system power-on self-test initialization failed.

1 Short 1 Short 2 Short: Motherboard error.

1 Short 1 Short 3 Short: CMOS or battery error.

1 short, 1 short, 4 short: ROM BIOS verification failed.

1 Short, 2 Short, 1 Short: The system clock is incorrect.

1 short, 2 short, 2 short: DMA initialization failed.

1 Short 2 Short 3 Short: DMA page register error.

1 Short, 3 Short, 1 Short: RAM refresh error.

1 Short, 3 Short, 2 Short: Basic memory error.

1 Short 3 Short 3 Short: Basic memory error.

1 short, 4 short, 2 short: The basic memory verification is incorrect.

1 Short 4 Short 3 Short: EISA sequencer error.

1 Short 4 Short 4 Short: EASA NMI port error.

2 Short 1 Short 2 Short to 2 Short 4 Short 4 Short (i.e. a combination of all sounds that start as 2 short): Basic memory error.

3 Short 1 Short 1 Short: Error from DMA register.

3 Short 1 Short 2 Short: The main DMA register is wrong.

3 Short 1 Short 3 Short: The main interrupt processing register is incorrect.

3 Short 1 Short 4 Short: Handle register errors from interrupts.

3 Short 2 Short 4 Short: Keyboard controller error.

3 Short 3 Short 4 Short: The display card memory is wrong.

3 Short 4 Short 2 Short: Error is displayed.

3 Short 4 Short 3 Short: No read-only memory is found.

4 Short, 2 Short, 1 Short: Clock error.

4 Short 2 Short 2 Short: Shutdown error.

4 Short 2 Short 3 Short: A20 Door Error.

4 Short 2 Short 4 Short: Protected mode interrupt error.

4 Short, 3 Short, 1 Short: Memory error.

4 Short 3 Short 3 Short: Clock 2 Error.

4 Short 3 Short 4 Short: Real-time clock error.

4 short, 4 short, 1 short: The serial port is wrong.

4 short, 4 short, 2 short: the parallel port is wrong.

4 Short 4 Short 3 Short: Digital coprocessor error.

The motherboard will not report an error, depending on how the sound is loud, and if there is an alarm, the graphics card or memory will not be plugged in.

Samsung's computer, can you touch the screen? Haha, just kidding, I think either the power supply is burned out, or the graphics card is a problem, or the memory module is loose.

Disassemble the chassis to see if the hardware and wiring are broken.