The computer won t show what s going on with the computer not displaying

Common computer start-up alarm sounds.

award bios

1 Short: The system starts normally. Shows that there is nothing wrong with the machine.

2 Short: General error, please go to CMOS Setup and reset the incorrect options.

1 long and 1 short: There is an error in the memory or motherboard. Try to change the memory, if it still doesn't work, you have to change the motherboard.

1 long and 2 short: The display or graphics card is wrong.

1 long and 3 short: The keyboard controller is wrong. Check the motherboard.

1 Long 9 Short: Motherboard Flash RAM or EPROM error, BIOS corruption. Try a different block of flash ram.

Constant ringing (long sound): The memory module is not plugged in tightly or is damaged. Reinsert the memory module, or replace the memory.

ami bios

1 Short: The memory refresh failed. Replace the memory module.

2 Short: The memory ECC verification error is incorrect. In CMOS Setup, you can solve the problem by setting the memory option for ECC check to disabled, but the most fundamental solution is to replace it.

Memory. 3 Short: The basic memory check of the system fails. Change memory.

4 Short: The system clock is wrong.

5 Short: There is an error in the CPU.

6 Short: Keyboard controller error.

7 short: The real mode of the system is wrong and cannot be switched to protection mode.

8 Short: A memory error is displayed. If there is a problem with the display memory, try changing the graphics card.

9 Short: BIOS chip check and error.

1 long and 3 short: memory error. If the memory is damaged, it can be replaced.

1 long and 8 short: A test error is displayed. The monitor cable is not plugged in properly or the graphics card is not plugged in properly.

There are several possibilities:

1.The power supply is insufficient (the current general power supply W is not enough.) ）2.The memory is loose and there is too much dust (the machine is used for a long time and caused by large dust, you can take the memory down and wipe it with new banknotes, and the motherboard and memory should be cleaned.) ）

3.The motherboard battery is low (take the motherboard battery off and discharge.) ）4.Motherboard failure (carefully check whether the capacitor pot is broken, burned out, whether the north and south bridge chips are burned, if there is a heat sink on it, take it down, you can also use the method of sniffing).

5.Whether the motherboard has lightning strikes or electric shocks. (Look carefully at the motherboard.) ）

I've been across this phenomenon as well.

1.Check the memory module, memory incompatibility sometimes causes this problem.

2.Put the power on, then take the motherboard battery down and put it down.

3.Check whether the CPU heat dissipation is normal, this phenomenon may also occur if the CPU temperature is too high.

4.Check to see if your graphics card is in good condition or plugged in.

Reinsert the memory once, and if there is a PCI device, if there is one, also reinsert it once.

If your computer is turned on, there are three possible reasons why your monitor won't show up: the first reason. That is, your monitor and the host are not connected properly, and they are taken off, or the monitor is not plugged in, and the connection cable between the host and the monitor is faulty, and it cannot be displayed.

Plug the connection cable again, or replace the cable. The second reason. It's a problem with the graphics card, when the gold finger of the graphics card (that is, where the graphics card has a copper sheet) is oxidized, there will be a problem of poor contact between the graphics card and the graphics card slot, so it causes a black screen, Jianyi, open the chassis, take off the graphics card, use an eraser to align the gold finger, wipe it on both sides a few times, and then plug it back, reboot it is OK, if you do this, you can't turn it on, which is the display is broken, and it is OK to replace the graphics cardThe third reason:

If there is a problem with the display itself, such as a problem with the internal components of the display, which causes it to be unable to be displayed, it is recommended to repair the display.