HP laptop power on the power button turned on and it didn t respond, what s going on?

There are many reasons why the boot screen does not respond, the common reason is that the memory is broken or the memory slot is soldered, and then there is a problem with the power supply chip of the motherboard, and the BGA (north and south bridge, graphics card, network card, etc.) packaging chip is damaged by virtual soldering, which will cause the boot screen to not light up. It is recommended that you send it for repair and testing.

In Beijing, I will help you to test for free to make sure, and it can be repaired on the same day.

If you are not in Beijing, it is recommended that you find a reputable and skilled repairer to help you overhaul.

Mine is the V3000 series,,The graphics card is broken,,Replace the motherboard.。。

Where did you buy your computer, go to the after-sales service center, is the battery broken?

It should be a cockroach that has bitten the battery!

Is there a sound? Is the power light also off?

1. Check whether all the plugs of the power supply and the wires on the adapter of the notebook are firmly inserted into their respective sockets, if not, it means that the contact with the power supply is poor, just press the plug down again.

2. If the indicator light is not yet on, on the premise of ruling out the power adapter, it must be that there is a problem with the power chip of the motherboard or a short-circuit breakpoint, and the motherboard is not powered on.

3. If the indicator light responds but the screen is black, it may be a problem with the graphics card or memory.

4. There is no display when the boot is normal, check whether the power cable, switch, and data cable of the display are correct, and it is also possible that the display is damaged.

Summary. Hello,Pro,The power button of the notebook can be lit,The fan also turns,But the screen has been on a black screen,Pay attention to whether the hard disk light is shining,If it is shining,It means that the notebook is entering the system,The screen is not lit may be a screen problem,You can try an external monitor,If the hard disk light is not on,You should consider the motherboard problem,You can short the BIOS jump pin on the motherboard (or disconnect the battery that supports BIOS on the motherboard,Plug it up later)Try。

Hello,Pro,The power button of the notebook can be lit,The fan also turns,But the screen has been on a black screen,Pay attention to whether the hard disk light is shining,If it is shining,It means that the notebook is entering the system,The screen is not lit may be a screen problem,You can try an external monitor,If the hard disk light is not on,The key should be rotten to worry about the motherboard,If the manuscript leaks can be short-circuited on the motherboard BIOS jump pin (or disconnect the motherboard to support BIOS's electric rotten pants pool,Plug it up later)Try。

Dear, you can check from the following aspects if you can see the motherboard information. Then consider hard disk or system failures to consider hardware failures, and the weather has been humid recently. I don't know if I'm going to test it.

1. Check whether the power adapter is faulty. Replace the adapter. 2. Whether the fan works after turning on and whether the motherboard has power.

Detect the motherboard and consider the power connector fault. 3. After turning on the machine, listen carefully to whether there is a prompt sound for entering the system. If so, consider the fault of the monitor cable and replace the cable.

4. Consider the failure of the screen background lamp. Replace the lamp. 5. Consider screen failures.

Replace the screen. 6. Motherboard failure. Repair the motherboard.

1. If there is a problem with the connection of the monitor, check whether the monitor is connected correctly and whether the switch is turned on. 2. If there is a problem with the computer, observe whether the computer has a boot sound and whether it starts normally. 3. Check if there is a problem with the memory, you can try to replace the memory module, or check whether it is loose.

4. There may be a system problem, you can try to reinstall the system to solve it. 5. Display failure, if the above reasons are eliminated, it is clear that the display is faulty, and it is recommended to send it for repair.

When the power light flashes for two or three seconds, it means that the computer is not turned on at all, according to this phenomenon, there are the following reasons:

1. The power adapter (charger) is broken, resulting in no power supply for the computer, but the computer battery supplies power to the motherboard for a short time. Use a multimeter to check the voltage at the output plug of the power adapter, and if the voltage is too different from the voltage marked on the adapter or there is no voltage, try replacing the power adapter. If the output voltage of the adapter is normal, check it as follows.

2. The power interface of the computer is in poor contact or damaged, when the adapter is normal, the computer should have a power indication and charging indication when plugged into the computer, if the computer is not displayed when plugged into the external power supply, it is a problem with the power interface or the power control of the motherboard, which can only be sent for repair.

3. The motherboard has a short circuit and causes the power supply to protect the shutdown, this situation is the most serious, and the probability of replacing the motherboard CPU is greater, and the reason for this situation is that the computer fan is bad and causes heating and does not shut down.

4. If there is a spare battery, you can change to a normal battery with electricity to try to turn it on. In this way, it is possible to determine whether the problem is before the host power supply or after the power supply. If only the power adapter is broken, it is the easiest, you can replace it, and other faults can only be tested and repaired by a professional repair shop.

This answer applies to most computer models such as the HP Star 14DR.

The power supply of the monitor is not in good contact, resulting in a black screen and the screen cannot be displayed. First of all, it is normal for the computer host to flash the boot button. In this case, if the computer monitor does not display the screen, do not directly judge that it is the problem of the computer host.

Sometimes the power supply of the monitor is not in good contact, and a black screen will appear, causing the illusion that the computer cannot be started. The way to identify this is to see if the monitor is on. If it doesn't turn on, plug it in again to fix the problem.

The computer is implanted with a Trojan horse, the system files are corrupted, and it cannot be turned on. The second case is caused by Trojan horses. People have the impression that Trojan horses can cause computer freezes, programs that cannot be run, or files that are lost, but some Trojans can directly attack computer systems.

Once the system files are corrupted by the Trojan horse, it will cause the computer to fail to boot properly. There are two ways to go about this. One is to enter PC Safe Mode before booting up your computer and restoring your system.

The second is to directly reinstall the system once and for all, but the premise is that there are no important files in the computer. The memory of the host computer is loose, and the computer cannot be turned on normally. Generally speaking, computer memory modules are not easily damaged, but memory modules are sometimes loose.

Once the host memory module is loose, the computer will not boot up, causing the display to go black. However, if the memory module is loose and cannot be turned on, the host will emit a screeching sound. If this sound appears, there is no need to think about it.

Turn on the host and reinsert the memory module, but pay attention to prevent static electricity in the process of reinserting the memory module.

There are several scenarios where a black screen can be on your computer:

1. The newly added hardware equipment is not compatible with the old or loose or other incompatible hardware is inserted;

2. During the computer networking, the Trojan virus was infected and an incompatible driver was installed;

3. The virtual memory set by the computer is insufficient;

4. The hardware settings are overclocked;

Solution: 1. Check and replace incompatible hardware, or use the original accessories;

2. Select the system with the right hardware and reinstall it;

3. Install the physical memory size of the computer, reset the virtual memory and select the location;

4. Reset the normal operation frequency of the hardware.

Boot the computer and keep clicking the F8 key to enter the system operation menu, select "Safe Mode", if you can enter successfully, click "Start", "All Programs", "Accessories", "System Tools", "System Restore", "System Restore Dialog Box" appears, and select "Restore my computer to an earlier time". In this way, you can use the built-in system restore function of the Windows system to restore to a restore point when the computer was able to boot normally.

If the laptop boot screen does not respond, it is recommended that you take out the memory and wipe the gold finger, which may be due to poor memory contact that causes the notebook to not display normally.

This may be that the memory is not lit up, or the memory is damaged or in poor contact, which can be solved by checking or replacing it.

It could be a system problem, or it could be a computer motherboard and hardware problem, and you can rule it out by reinstalling it.

It is estimated that the motherboard test did not pass, restart the computer, keep pressing the F8 key, and use the "last correct configuration" to see if you can enter the system.