G460 turned on and heard the fan turn, and after a drop sound, it didn t respond, what was the pro

Depending on your situation, the temperature may be too high, and the laptop is automatically protected, so it is recommended that you open it to clean up the dust or check if there is any problem with the motherboard parts.

Dear Lenovo users, hello!

It is recommended that you perform a reset operation, the specific steps are to unplug the power cord, remove the battery, and keep pressing the power button for 15 seconds, if it still can't be solved, it is recommended that you contact our service station for testing and maintenance, service outlets query link:

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Think Forum.

Lenovo Community.

Needless to say, it is the problem of memory, you use an eraser to erase the gold finger of memory.

Or try it out in a different slot.

If you can, you can change another memory module and see if you can!

What should I do if the computer does not respond when it is turned on? Don't panic yet, teach you how to quickly troubleshoot and solve it in one minute!

Answer: The self-test two short sounds reflect that there is a problem with the motherboard, but the problem is not big, the system can be solved by automatic adjustment, but it is best to restore the BIOS system: turn off the power, remove the button battery of the motherboard, switch the jumper pins next to it for 5-10 seconds, and then put it back in place, and restart it. Here's what some computer ringing alarms mean:

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 CMOS setup and reset the incorrect option.

1 Long 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 2 Short: Wrong monitor or graphics 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.

Ringing: The power supply and monitor are not properly connected to the graphics card. Check all the plugs.

Repeated short rings: Power supply issues.

No sound, no display: Power issue.

Remove the motherboard battery and install it, see if there is a response to this boot, the motherboard itself is more likely to have problems, take it directly during the warranty period, if you want to find someone to repair, I recommend sending it directly to the electronic city for maintenance, because if you ** let people come to repair, whether you repair or not, the service fee for the door-to-door service you are going to pay.

There's too much computer dust....The CPU is in poor contact, take the CPU out and put it on. Remove the memory module, use an eraser to remove the gold finger (golden contact piece), do not touch it with your hands, before installing...Ok, problem solved....

If the memory module has static electricity, just use an eraser to wipe the gold finger.

If you can't turn on the machine,It means that there is a problem with the motherboard or power supply,,You can turn on it for a while now.,It's really caused by poor contact.,My old computer is like this.,When you can't turn it on, take two shots of the case when you can't open it.。。。

It may be that the memory and graphics card strip are loose or the gold finger is oxidized, unplug it after shutting down to check whether it is normal, and you can use an eraser to wipe the oxide layer.

Motherboard issues. The electrical performance of the motherboard is oxidized, resulting in no reaction when the first power is turned on!

Does the monitor contact good? You should first tighten the cable of the monitor!

There is a sound when you boot up, how far has it been turned on? Windows does not boot normally? If you start Windows normally, you can be sure that it is a problem with the monitor!

If you can, you can try to change your monitor to another host and find out why!

Electronic components are not easy to regain moisture for a long time, and there will be some small failures!

If the monitor is not very good, I don't use the computer for a day or two, the monitor is very dark when I turn it on, and when the power is turned on for a while, the monitor will slowly light up I have often encountered this situation before, so after I turn off the computer, the power strip will not be powered on to avoid this situation!

A sound doesn't mean that windows started normally, but it just passed the self-test.

This estimate is a problem on the display side. You can find the reason from 2 aspects: first press the num lock key of the keyboard, if there is a response, the computer has started normally, and if it does not respond, it means that it has not started normally or has crashed; Also, check if the 2 wires of the monitor are in good contact, and further that is to replace the monitor.

If you hear a ticking sound, it means that the computer host is turned on, but the monitor does not respond, it may be that there is a problem with the graphics card or the monitor data cable is not connected properly.

The first time to detect that all the hardware is normal, the second time to detect that the graphics card is not loaded, enter the biose to restore the factory settings when it is turned on, and reinsert the graphics card should be able to solve it, such as the integration says only restore it.

If the monitor is on, if not, the plug-in board is loose, as long as there is a boot sound, the computer is not broken.

First of all, if the computer BIOS has a "dropping" sound, it means that the motherboard has been turned on. But also confirm the following actions:

1. Whether the keyboard light numlock and caps lock are lit when pressed; -- Lights up to prove that the computer has been turned on.

2. Whether the monitor is connected normally; --Check the monitor switch and connect the computer data cable.

Interchangeable monitors for testing. (May be used for a long time, the internal components are aging) 3. There is an error inside the BIOS, which may be caused by the graphics card (**2A, 2E). - Turn on the chassis and reseat the graphics card after powering off.

And remove the motherboard battery buckle to clear the motherboard CMOS settings. After that, it is re-energized and restarted.

The problem that the display may not be able to!!

In this case, it is likely that the hardware self-test caused by poor memory contact cannot be done, so the machine cannot be turned on, and the solution is to take out the memory, wipe it clean and reinsert it.

Memory is one of the most important components of a computer, and it is the bridge that communicates with the CPU. The running of all programs in the computer takes place in memory, so the performance of the memory has a very large impact on the computer. Memory, also known as internal memory, is used to temporarily store computing data in the CPU and exchange data with external memory such as hard disks.

As long as the computer is running, the CPU will transfer the data that needs to be calculated to the memory for calculation, and when the operation is completed, the CPU will send the result out, and the operation of the memory also determines the stable operation of the computer. Memory is made up of parts such as memory chips, circuit boards, gold fingers, etc.

That means the computer is fine!

If you can start the self-test, it means that there is no problem at present, and then continue to add an accessory and open it again, no problem and then add it until you find the problem, if you pull it out, it is likely that the things on the motherboard are broken, and the motherboard needs to be repaired.

First of all, if you suspect a problem with the motherboard, please check whether the capacitor on your motherboard has burst, a little bit.

The second is the power supply problem, if the power supply and the motherboard interface is not connected well, this will also happen!

Two possibilities:

1。Power supply problems, generally the internal protection of the power supply. The causes are short circuit, overvoltage, overpressure.

2。Motherboard problems, the motherboard has a short circuit, or the memory, CPU, graphics card network card, etc. have a short circuit, causing power protection.

Solution: Replace, find a good power supply to replace the power supply, if the problem is solved, it is a problem of the power supply, if the fault is still there, the motherboard problem (CPU, memory, graphics card, network card) and so on. It can be replaced sequentially.

The problem of power supply, or the problem of poor heat dissipation caused by the inflexible rotation of the power supply fan, it is recommended that you troubleshoot it step by step

1. Check whether there is a problem with the power supply, short the gray wire and green wire in the 20 pins of the power supply, and see if the power supply is started. If it doesn't start, the power supply is bad.

2. Motherboard, plug in the power supply, unplug the switch wire, (unplug the restarted, hard disk light, and power supply, etc.).

Short the power sw with a metal short. (That is, the two pins that plug in the switch) to see if the computer starts, if it starts, the motherboard is OK, not start, the motherboard is a problem. (Send for repair).

If it can be started like that, it can't be started when connected to the switch, and the switch is a problem.

Check it in detail, whether you are a desktop or a laptop, first give you a simple test method, first replace the memory module to see if it can be turned on, if it can't be turned on, please try another method.

Plug in the power and press the power button, and then continue to tap the upper and lower case keys, if there is a case indicator, and the screen is not lit, this is a problem with the display (including the graphics card on the motherboard, the monitor and the display cable,) If there is no case indicator, it means that the motherboard is broken, take it to repair....

There's ash in it, take it apart and blow it, and rub the memory stick.