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The computer can't be turned on, and there is a sound:
1 Short: The system starts 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 CMOSThe setup and reset the incorrect options.
1 long and 1 short: There is 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: 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 FlashRAM or EPROM error, BIOS corruption. Try a different block of flashram.
Constant ringing (long sound): The memory module is not plugged in tightly or is damaged. If it still doesn't work, you can only replace a memory module.
Ringing: The power supply and monitor are not properly connected to the graphics card. Check all the plugs.
Repeated, short ring: Power issue.
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The reason why the computer starts up is non-stop: 1, the hard disk rings (high-speed moving disks will make noise when starting), 2, all the fans on the machine (high-power fans are usually the biggest cause of noise), 3, the memory, the motherboard is not properly set, and the motherboard speaker cord is short-circuited. (Except for the memory is not plugged in, all other noises can start the machine).
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Analysis: Sometimes the computer boot can not enter the system is generally caused by software or hardware failure, the reasons are many and very complex, it may be system file corruption, it may be virus infection, or it may be a problem with the graphics card or memory.
1.Restart the computer, if you can enter the system normally, it means that the last time it was only an occasional program or system error, it does not matter.
2.If you can't enter the system normally frequently, press F8 immediately after booting to see if you can enter the safe mode or configure the correct mode for the last time, if you can, enter and exit, and then restart to enter the normal mode. If you have security software, you can use 360 Security Guard and 360 Antivirus in safe mode to check and kill all the things.
3.If not, press F11 after rebooting to see if there is a one-click ghost, and if there is, a one-click restore (I used to do a one-click backup).
4.If there is no one-click restore, use the system USB flash drive to reinstall the system. After booting up, press the del key (notebooks are generally F2 or according to the bottom line of the screen prompt characters) to enter CMOS, and set the U disk as the first boot item.
Reboot into the boot menu of the USB flash drive, select Clone Installation, and then follow the prompts.
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See what's going on.
Most people have told you about the analysis of what something.
As for the situation of 'ringing', I will tell you about the following common situations.
1. Memory module contact problem.
I also feel this very deeply. My computer's (i.e. the device I'm talking about now) memory modules are often covered in some dust and a little loose, and sometimes I accidentally bump into the computer, and the memory sticks inside will 'deng' out.
Now, sometimes it is not possible to plug it back, and you need to use an eraser to wipe the surface of the memory module to clean the dust.
2. System guidance problems.
However, this problem is generally not a big problem, and it will show two strings (or strings) of English instructions that no problem was found in the system, and. It's usually not very loud, it's quiet.
3. The motherboard battery is dead.
If the battery is empty, just buy one. It is the same as the remote control or mobile phone and other situations where there is no battery (I don't mean that the motherboard battery is the kind of No. 5, No. 7 or lithium battery), be careful when changing.
4. Problems with power supply.
This is a bit troublesome, because my previous computer was bitten by a mouse, and as a result, it bit the wire inside the power supply, and it couldn't be turned on and kept ringing. Although I was able to connect the cable, I bought a new one and installed it myself for safety reasons.
These are all four points summarized by experience, I hope you are useful.
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Most of this is caused by poor hardware contact, and it is likely to be related to recent weather changes.
First unplug all the wires plugged in behind the host, press the power button 15 times, this is to discharge static electricity to the host, sometimes the weather changes will have static electricity to cause this problem.
Plug those threads back in as they were, turn on the machine to see if it's normal, if not, and look down.
Discharge the motherboard, remember to unplug the power cord, otherwise the motherboard will be invalid.
Let's start with the hardware:
1 Unplug the power supply, 2 disassemble the chassis, 3 press and press the memory and cards inserted on the motherboard Generally, after doing this step, you can try to boot it again.
4. Pay attention to see if the capacitor of the motherboard has the phenomenon of bursting pulp, if so, it is best to send it for repair! Although it may still work, there are some strange phenomena from time to time, such as crashes, sudden restarts, slow running, etc.
5. Turn on the computer to see, if it is normal, pay attention to whether the CPU fan, graphics card fan, and power supply fan are spinning, or they are spinning very slowly!
6. If there is no phenomenon of pulp bursting and the fan is running normally, then it is possible that a certain part is damaged, so send it for repair!
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Reinstall the system with a disc, does the screen appear**? If you can't install the system, the hard disk may be broken.
I deduce it's basically related to your new memory...
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