Reprinted: IT023.COM (computer online)
When repairing a computer, we often encounter BIOS error prompts when booting. If we are familiar with the causes of these sounds, it is very convenient for us to troubleshoot the computer and solve the problem in the shortest time.
1, the continuous short tone of "Didi ..."
Generally speaking, there is something wrong with the power supply of the host. However, sometimes the output voltage of power supply is low, and the host does not give an alarm. On the contrary, the hard disk will be lost, the reading performance of the optical drive will be poor, and it will often crash. When these situations occur, it is best to check whether the output of each voltage is low. When +5V and+12V are lower than 10%, the above problems will appear irregularly. Because the power supply has voltage output, it is often mistaken for a motherboard problem or a hard disk problem, which wastes a lot of time. The low output voltage is caused by the capacitance loss of the output part or the leakage of the filter capacitor. When the DC component decreases, the high-frequency AC component in the power supply increases, which will interfere with the normal work of the motherboard, leading to system instability and prone to crash or blue screen phenomenon.
However, in this case, on some motherboards of Intel and Gigabyte, if the system continuously beeps, it is not a power failure, but a memory failure alarm, which needs attention.
2. The voice of the ambulance "Woo-hoo-hoo-hoo-hoo-hoo-hoo-hoo-hoo-hoo-hoo-hoo-hoo-hoo-hoo-hoo.
This situation is the system alarm sound of CPU overheating, mostly because the CPU radiator inside the host has dust, or a new CPU fan has been replaced. Because the installation is not in place, the contact between CPU radiator and CPU is not firm, and there is a certain space or sundries inside, which leads to the heat emitted by CPU can not be released normally. The CPU will reach 80-90℃ when it is turned on. If it is a CPU below PIII, because the temperature test of the CPU is collected by the temperature probe near the CPU, there is a certain error between the displayed temperature value and the actual temperature value of the CPU, which is about 10-20℃. The temperature sensor of the CPU of PIV is integrated inside the CPU, so the CPU temperature displayed by the system is more accurate. Generally, as long as the host is turned on, the CPU temperature prompted by the system is around 50℃, which is normal.
3. "Di's continuous long sound ... Di ...".
This is the sound of memory alarm, which is generally caused by loose memory, poor contact between the memory gold finger and the memory slot, oxidation of the memory gold finger, failure of a memory chip, etc.
4. "Di ... Di" is a continuous title.
This is a video card alarm. Generally, the graphics card is loose, the graphics card is damaged, or the power supply of the motherboard is partially faulty.
5. Nothing happened after two long tones of "DuDu". After a while, you will hear the floppy drive "squeak".
If an image is displayed, you will be prompted that the system will boot from the floppy disk and is reading the floppy disk. If there is no floppy disk in the floppy drive, the system will prompt that the system cannot be started without floppy disk, and the system hangs.
6. When the three keys "Caps Lock", "Num Lock" and "Scroll Lock" are pressed in the WIN system, the PC speaker of the host computer has a key tone similar to "Di".
For example, Sandi's PV40ML is a prompt function of the motherboard, prompting the user to change the input state of the keyboard, which is not a fault. But because some people don't understand the falsehood, they think there is something wrong with the motherboard.
7. A short "beep"
Under normal circumstances, this is the prompt sound when the system passes the self-check and the system starts normally. However, when some motherboards pass the self-test, there is no such prompt sound and no sound. It should also be noted that some motherboards may take a long time to self-check, and it will take five or six seconds to hear the beep, which requires a little patience.
You can judge what the problem is according to the length and frequency of the alarm.
The general meaning of the award BIOS ringtone is:
1 short: the system starts normally. This is what we hear every day, which also shows that there is nothing wrong with the machine.
2 Short: General error, please enter CMOS settings and reset incorrect options.
1long1short: Error in RAM or motherboard. Try to change your memory. If it still doesn't work, we will change the motherboard.
1 long 2 short: monitor or graphics card error.
1 Length 3 is short: keyboard controller error. Check the motherboard.
1 length 9 short: the Flash RAM or EPROM of the motherboard is wrong, and the BIOS is damaged. Try changing the flash memory.
Constant ringing (long sound): The memory module is not tightly inserted or damaged. Reinsert the memory stick. If it still doesn't work, you need to change a memory.
Non-stop ringing: the power supply and monitor are not connected to the graphics card. Check all plugs.
Repeated short tone: power problem.
No sound, no display: power problem.
The general meaning of AMI BIOS ringing is:
1. A short sound, memory refresh failed. The memory is badly damaged. I'm afraid I have to replace it.
2. Two short tones, memory parity error. You can enter CMOS settings and turn off the memory parity option, that is, set it to disabled. Generally speaking, however, memory chips have parity, and parity is turned on under CMOS settings, which is beneficial to the stability of microcomputer systems.
3. After three short sounds, the system basic memory (1 64Kb) failed to be checked. Replace the memory.
4. Four short tones, system clock error. Repair or replace the motherboard.
5. Five short sounds, CPU error. But it is not necessarily the fault of the CPU itself. It is also possible that there is something wrong with the CPU socket or other places. If this CPU is normal on other motherboards, the fault must be the motherboard.
6. Six short tones, keyboard controller error. If the keyboard is not plugged in, it is very simple, just plug it in; If the keyboard connection is normal but there is an error prompt, try a good keyboard; Otherwise, there is something wrong with the keyboard control chip or related parts.
7. Seven short tones, system real mode error, unable to switch to protection mode. This is also the fault of the motherboard.
8. Eight short tones, indicating memory reading and writing errors. The memory module on the video card may be damaged. If the memory module is pluggable, just find out the bad chip to replace it, otherwise the graphics card needs to be repaired or replaced.
9. Nine short sounds, ROM BIOS check error. Try to change a good BIOS of the same type. If it proves that there is something wrong with the BIOS, you can try to recover it by rewriting or even hot plugging.
10. Ten short tones, register read/write error. Only the motherboard can be repaired or replaced.
1 1 .11 short tones, cache error.
12. If you can't hear the beep and see the screen display, first check whether the power supply is connected properly. Maintenance is often easy to neglect, and the test is started without connecting the motherboard power supply. Secondly, it depends on whether there are any missing components, such as CPU and memory chips. Similarly, unplug all the cards in question and try only the video card. Finally, find the jumper on the motherboard to clear the CMOS settings, clear the CMOS settings, and restore the BIOS to the factory state. If the monitor, graphics card, wiring are all right, and the CPU and memory are all right, after the above steps, the microcomputer still doesn't display or ring, so it can only be the problem of the motherboard.
BIOS alarm sound of POENIX (boss used to have many POENIX, but now it has been acquired by AWARD).
1 Short system started normally.
1 short 1 short 1 short system power-on initialization failed.
1 short 1 short 2 short motherboard error.
1 short circuit 1 short circuit 3 short circuit CMOS or battery failure.
1short1short4shortrombios check error.
1 short 2 short 1 short system clock error
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 1 short basic memory address line error
1 short 4 short 2 short basic memory check error
1 short 4 short 3 short EISA sequencer error
1 short 4 short 4 short EISA NMI port error.
2 short 1 short 1 short prefix 64K basic memory error
3 short 1 short 1 short DMA register error.
3 short 1 2 short main DMA register error
3 short 1 3 short main interrupt processing register error
3 short 1 4 short slave interrupt processing register error
3 short 2 short 4 short keyboard controller error
3 short 1 3 short main interrupt processing register error
3 short 4 short 2 short display error
3 Short 4 Short 3 Short Clock Error
4 Short 2 Short 2 Short Shutdown Error
4 Short 2 Short 3 Short A20 Gate Error
4 Short 2 Short 4 Short Protection 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 Clock Error
4 Short 4 Short 1 Short Serial Error
4 Short 4 Short 2 Short Parallel Port Error
4 short 4 short 3 short digital coprocessor error