My laptop turned on and suddenly beeped the alarm, what s going on

It's the hardware that's broken.

1 Short: The system boots normally.

1 Long 1 Short: There is an error in the memory or motherboard.

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

1 Long 3 Short: Keyboard controller error.

1 long 9 short: The motherboard BIOS is damaged.

Constant ringing (with long, intermittent sounds): The memory module is not plugged in tightly or damaged.

Keeps ringing: The power supply and monitor are not properly connected to the graphics card. Check all the connectors.

Repeated, short ring: There is a problem with the power supply.

Motherboard Failure Warning Sheet for AMI BIOS.

1 Short: The memory refresh failed.

3. Short: The basic memory of the system (the first 64KB) fails to be checked, and the memory needs to be replaced.

4 Short: The system clock is wrong.

5 Short: Processor (CPU) error.

6 Short: Keyboard controller error.

7 Short: The system is in real mode and cannot be switched to protected mode.

8 Short: Displays a memory error.

9 Short: BIOS test error.

1 long and 3 short: memory error.

1 long 8 short: the display test is wrong, the display data cable is not plugged in well or the graphics card is not plugged in firmly.

It should be noted that in practice, it is found that most often encountered by many users of this kind of black screen failure is due to the intermittent horn alarm sound emitted by the memory module is not plugged in or damaged.

If dust enters, you can remove the memory module to clean the memory slot or memory, or plug it in another memory slot, or try to change the memory.

Depending on your motherboard model, some of the two sounds are normal.

If there is a hardware problem, send it for repair, and don't move it by yourself during the warranty period.

Hardware issues. Computers that are in poor use or have been used for a long time should be cleaned first. You can use a brush to gently brush off the dust on the motherboard and peripherals.

If the dust has been cleaned off or is dust-free, proceed to the next check. In addition, because some plug-in cards or chips on the board are in the form of pins, vibration, dust, and other reasons often cause pin oxidation and poor contact. You can use an eraser to remove the surface oxide layer, and after replugging it, turn on the machine to check whether the fault has been eliminated.

1. Since your machine is Dell's, Dell has a warranty for free replacement, and you can make good use of this warranty.

You don't tell the engineer that your machine has this kind of problem, they can't be detected if they don't come to the door, but Dell's ** engineer can't detect your problem, and your machine is used normally, he won't send someone to repair it, because the person who comes to repair it won't detect it.

The next time you tell him that your problem is still the same, and the computer often doesn't turn on or often has a blue screen, in short, tell him that your machine can't work properly now, and ask him to send someone.

2. Dell has no display alarm 7 sounds when it is turned on, which is a problem with the display components, from the screen cable to the screen cable interface. Generally, it is the motherboard screen cable interface - > screen cable - > screen cable interface on the screen, and there are problems with the three parts.

Since there is an alarm sound, it can be judged based on the following situation.

a:ami bios

1 short beep: Memory refresh failed.

2 short beeps: Memory ECC verification error.

3 short beeps: The self-test of the system basic memory (the first 64KB capacity) fails.

4 short beeps: The system clock is wrong.

5 short beeps: CPU error.

6 short beeps: Keyboard controller error.

7 short beeps: The real mode of the system is wrong and cannot enter the protection mode.

8 short beeps: Displays a memory error (e.g. displays memory corruption).

9 short beeps: Motherboard FlashROM or EPROM verification error (e.g. BIOS corrupted by CIH virus).

1 long and 3 short beeps: memory error (e.g. memory chip corruption).

1. Long and 8 short beeps: The display system is tested incorrectly (such as poor contact of the display data cable or graphics card).

award bios

1 short beep: The system starts normally.

2 short beeps: General error. You should go to CMOSTathe and reset the incorrect options.

1 long beep 1 short beep: There is an error in the memory or motherboard.

1 long beep 2 short beep: Wrong monitor or graphics card.

1 long beep and 3 short beeps: The keyboard controller is wrong.

1 long beep 9 short beeps: motherboard flashram or EPROM error (e.g. BIOS corrupted by CIH).

Non-stop long beep: The memory is not plugged in properly or the chip is damaged.

Non-stop ringing: The display is not connected to the graphics card.

Repeating a short "beep": The power supply is faulty.

No beep sound and no display: the motherboard power supply is not connected, or the power supply is damaged.

The reason for the alarm when the computer is turned on: a memory problem.

Troubleshooting:

1. First clean up the memory module, remove the memory module (use your fingers to pull the card of the memory slot to both sides), wipe it with an rubber band, and then reinstall the memory module (align the memory module with the bayonet, hold both ends of the memory module, and press it down slightly). Turn on the computer to see if it can start the computer. Most of the computer beeping problems can be solved.

2. If the first step is still invalid, then you can only replace the memory slot first, see if the slot is broken, and then reinstall the memory.

3. If the problem of Changming cannot be solved, it means that the memory module has been damaged and needs to be replaced.

Note: There are many alarm sounds when the system starts: for example, one long sound and two short sounds indicate an error in the monitor or display card; Repeated, short beeps indicate a power supply problem.

1 Short: The system boots normally. This is something we hear every day and it also shows that there is nothing wrong with the machine.

2 Short: General error, please go to CMOS setup and reset the incorrect option. 1 long and 1 short:

There was an error with the RAM or motherboard. Try to change the memory, if it still doesn't work, you have to change the motherboard. 1 long and 2 short:

Wrong monitor or display card. 1 Long 3 Short: Keyboard controller error.

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 damaged.

If it still doesn't work, you can only replace a memory module. (One of the most common problems) keeps ringing: The power supply, the monitor and the graphics card are not properly connected.

Check all the plugs. Repeated short rings: Power supply issues.

No sound, no display: Power issue.

Check the memory module, use the eraser to remove the gold finger, if it is two different specifications of memory, it is recommended to replace the next one.

Change the slot, use the eraser gold finger, and if it doesn't work again, reseat the graphics card again.

Of course, if you don't plug in the memory, it will ring, and most of it is a problem with the memory. A few may be graphics cards. Let's check them all out.。。

If you don't plug in the memory, it will sound an alarm, or it will just be broken.

If you don't plug in the memory, it rings, that's the problem of the motherboard.

You judge that the memory module problem is right, I don't know how you cleaned it up, I said the operation method, first unplug the memory module, wipe off the gold finger with alcohol, and then scrape off the memory slot with a thinner metal, if it doesn't work again, it is the memory module is broken, go to the ** business for a change.