What should I do if my Apple computer won t turn on?

Causes and solutions:

Step 1: First of all, according to the specific situation analysis, if there is no power response directly, then check whether there is a power supply, poor contact, hardware and other problems, go to the second step, if it is not possible to enter the system may be operating system or software problems to go to the third step.

Step 2: Check whether there is a power supply problem, first see if the power supply is not plugged in well or there is a problem with the plug, if you are using a battery, then plug it in and try again. You can go to a friend or go to a computer repair shop or sales store to find the same model of power supply to try it.

After replugging the power supply, press the power button again, and if it still can't be turned on, then press it for a while. If you change someone else's power supply to turn on, it means that there is a problem with the power supply, if it proves that there is no problem with the power supply, it may be the hardware reason, go to the fifth step.

Step 3: Go to the last correct configuration to adjust, turn on and press and hold F8, enter the advanced options page, select "The most recent correct configuration", and press Enter. If it can enter the system, it may be caused by viruses, incompatible hardware drivers with the system, or operating systems.

After entering the system, run the anti-virus software, check and kill the virus, if there is a virus, restart the computer after the anti-virus, if it is not normal, it may be caused by the incompatibility of the device driver and the program, delete the graphics card, network card and other drivers, restart it after removing the driver, if there is still a problem, then go to the next step.

Step 4: Repair and install or reinstall the system, set "Optical Drive as the first boot device" in the BIOS, then insert the system disk, and press the R button to perform "Repair and Installation". If the fault persists, just at the beginning of the system, select "One-click GOST to restore the system" or use the system disk to reinstall the system.

Step 5: Check whether there is a hardware problem, disassemble the notebook to see if the hardware is loose, generally the hardware is not plugged in well, there will be an alarm sound, the long sound continues to sound that the memory module is not plugged in tightly, one long and one short means that the memory or motherboard has a problem, one long and two short means that the graphics card is wrong. If there is too much dust inside the notebook, it is best to clean it up first.

In addition, pay attention to whether it is caused by the new hardware, if it is normal before the replacement of the hardware, and it is not normal after the replacement, then check whether it is compatible. If it can't be started at this time, it is best to send it for repair, and the professional will check whether there is a problem with the hardware one by one.

Apple computer won't turn on:Tools Raw materials: Apple MacBook Pro 13, Mac OS1, first of all, it may be a power supply problem, first check whether the power supply is plugged in or there is a problem with the plug, if it is a battery problem, it may be that the laptop is not strong enough, you can only charge it more before use, and this problem will be solved.

2. Then there may be a motherboard problem, and the motherboard problem is the main reason why the laptop cannot be turned on. It is often caused by factors such as the wear and tear of the notebook liquid, the damage to the original of the motherboard itself, etc.

3. Finally, there may be circuit failures, faults that the laptop cannot start, in addition to artificial liquid ingress and short circuits, most of them are the problems of protection circuits, startup circuits and EC peripheral circuits.

The desktop computer does not respond when it is turned on, mainly due to the following reasons: 1. The power supply of the computer host is damaged, although it can be turned on, it cannot start normally, please replace the power supply. 2. The COMS chip on the motherboard is damaged, especially after being damaged by the CIH virus, the computer cannot start normally.

3. The power light of the host is on, and there is no other alarm sound, which may be CPU damage or poor contact. 4. There is no problem with the host device itself, but the host can be powered on but cannot self-test, at this time, it may be that the motherboard or CPU has been overclocked, and the default settings of the BIOS can be restored. If you can't find a jumper to clear the CMOS on the motherboard, you can directly remove the battery on the motherboard and short-circuit the positive and negative poles for ten seconds.

5. If the network card is damaged or not in good contact, it may also cause the machine to fail to start. 6. The graphics card, memory and motherboard are not compatible, which will also cause the machine to fail to boot. 7. The memory slots and graphics card slots on the motherboard are damaged.

Hello dear kiss is very happy to answer for you how to solve the problem that the Apple computer can't turn on, the solution to the Apple computer can't turn on: 1. When the Apple computer can't turn on, first check whether the power connection of the computer is normal, after eliminating this problem, you should also consider that the power button of the computer is faulty, press and hold the power button for a few seconds, repeat several times the computer has no response, it is very likely that the power button is damaged, you need to go to the repair shop for repair; 2. If the internal parts of the computer are damaged or the hardware is damaged, this kind of problem is not possible for non-professionals to judge that there is a specific problem, and it is necessary to find a professional maintenance personnel to solve it; 3. When there is a problem with the computer monitor, do not disassemble the computer for inspection at will, and be sure to find a professional maintenance store to deal with it; 4. When the computer enters the update mode, do not turn on or off, wait for the computer to be updated, and then you can turn it on.