What s the matter with the alarm sound when the laptop is turned on?

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, your problem is still the same, and the computer often doesn't boot up, or often has a blue screen.

Tell him that your machine is not working properly 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 alarm sound of the laptop may be due to the bad sector of the hard disk, and the alarm sound occurs due to the abnormality of reading data, which may be due to the lack of memory due to too many programs running at that time, or it may be a problem with the mouse interface.

1. If it is constantly ringing and it is a long sound, it means that the memory module is not plugged in tightly or damaged. If it still doesn't work, you can only replace a memory module. If it keeps ringing, the power supply and monitor are not properly connected to the graphics card, and all plugs need to be checked.

2. If it is refreshed at the same time when the machine is booted, only the first time it appears, and then it does not appear, then it is very likely that there are too many self-starting programs at boot, or the computer is infected with a virus, which causes the machine to run overloaded with CPU and memory during that period of time, so there will be an alarm sound.

3. The computer has been reinstalled in the system, and no virus has been detected, after disk scanning, there is no error, or the mouse has been replaced, and there is still an alarm sound, the slow startup is related to the configuration of the computer, click to refresh in the system, then the computer has completed the self-check, if it is in the system on the desktop click refresh will "drop" a sound that is related to the system, it is normal.

First, record the wavelength of the warning sound, and then turn it off first. Repairs are being carried out. Different noises, representing different faults, can be solved according to the sounds:

Short: The system boots up normally.

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

1 long 9 short: The motherboard BIOS is damaged.

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

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

1 Long 3 Short: Keyboard controller error.

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.

Laptops, also known as "laptops, laptops, handheld computers or laptops", are characterized by their small size, which is more portable than PCs, and is a small, portable personal computer. The current trend is to be smaller and lighter, but more powerful.

The answer may be that the hard disk has a bad sector, and the reading data is abnormal and this alarm sound appears. It is also possible that there are too many programs running at that time, resulting in an alarm sound caused by insufficient memory. It's also possible that there is a problem with the mouse interface.

If it is the first time that the simultaneous refresh occurs when the machine is booted and does not appear later, then it is very likely that there are too many auto-startup programs at boot, or viruses, causing the machine to run overloaded with CPU and memory during that period of time. An alarm sounds.

Either way, it's based on the following premise.

1.The system was reinstalled and no virus was detected.

2.The machine was scanned and there were no error cases.

3.The mouse has been replaced, and the alarm still sounds. The slow boot is related to the configuration of the laptop.

Also, click refresh in the system, then the computer has completed the self-test, if it is in the system on the desktop click refresh will "drop" a sound, then it is related to the system, it is normal.

Question: The alarm screen does not light up when the phone is turned on.

Dear Lenovo customers, hello.

One: "Didi." Continuous short tones.

In general, it is common for the host computer to have a power supply problem. However, sometimes when the output voltage of the power supply is low, the host does not report it.

However, there will be a situation where the hard disk is lost, the reading performance of the optical drive is poor, and it often crashes. When these situations occur, it is best to check whether the output of each voltage is low, when +5V and +12V are less than 10%, the above problems will occur from time to time. Because the power supply has a voltage output, it is often mistaken for a problem with the motherboard or the hard disk, and a lot of time is wasted.

When the DC component is reduced, the high-frequency AC component in the power supply increases, which will interfere with the normal operation of the motherboard, resulting in system instability, and it is easy to crash or blue screen.

Two: "Tick." Backbite. 's continuous, spaced long tones.

This is the sound of the memory alarm, which is generally due to loose memory, poor contact between the gold finger of the memory and the memory slot, oxidation of the gold finger of the memory, and failure of a chip in the memory.

3. "Tick." Didi" is a long and short continuous chirp.

This is a graphics card alarm, usually the graphics card is loose, the graphics card is damaged, or the power supply part of the graphics card of the motherboard is faulty.

The specific model brand of the notebook, if it is Dell's machine, 7 sounds indicate that it is mostly a problem with the motherboard bridge chip. If you can't figure it out yourself, find a good technical maintenance test machine to take a look.