After the laptop is turned on, the computer is still running on power, and the internal heat sink is running, but there is no display or prompt on the screen, what should I do in this case? The following is an introduction to the reasons and solutions for the laptop’s failure to turn on.
1. motherboard failure, memory failure
If there are two memories, it is recommended to unplug one memory, keep one memory for a power-on test, if it does not work, plug in the other memory separately for a power-on test, if both do not work, then it may be a motherboard problem.
2.Graphic card, screen cable failure
If you have set the boot music, if the boot can hear the sound entering the system, it means that the graphics card or the screen cable is faulty or the cable is loose.
For the above hardware failures, the vast majority of people can’t handle it themselves, so it’s recommended to take it to a repair point for repair.
3.Hardware loose
If the memory or graphics card is loose, especially if the memory is the most likely to be loose, try plugging it back in.
4.Mainboard BIOS error
The motherboard BIOS is wrong; you need to clear the BIOS, complete the discharge operation, and reset it.
We can try to see if the hardware is loose, and the motherboard clears the BIOS.
1.Memory re-swappable
After shutting down the laptop, disassemble the bottom D side of the laptop, plug the memory back in, if it doesn’t work, use an eraser or a paper eraser to wipe the gold finger part of the memory, then install it back, try to power on, of course, if there are two memory alternately, please attempt to power on the single one.
2.Clear CMOS battery, discharge
Remove the bottom D side of the laptop intact, and after seeing the motherboard, find the battery, which is a round thing wrapped in plastic next to the motherboard. Remove it at the connection port.
After removing it, wait for 5 minutes, then put the battery back, finish discharging the laptop’s motherboard CMOS battery and BIOS reset.
There is also a case where the monitor background is black after powering on, but it shows letters or has a “_” symbol, then this may be as follows.
1.System failure
The reinstallation of the operating system is sufficient.
2.Can’t recognize the hard drive
The hard disk may be wrong, try to see in the BIOS is denied to the hard drive, if not recognized, indicating that the hard disk failure, can only replace the hard disk.
3.System boot issues
Use software to fix the system boot.
4.The first boot item is not set on the primary hard disk.
If you have two drives, the primary drive is not set as the first boot item.