Laptop Boot Unable to enter BIOS troubleshooting solution

Laptop boot failed to enter BIOS troubleshooting solution

Method/Step

How to enter the notebook computer BIOS: Failure phenomenon: A second-hand Compaq notebook computer, need to enter the BIOS to make some settings, but do not know the shortcut keys. Failure analysis and Processing: Most laptops enter the BIOS in different ways than desktops, and most laptops are in [F1], [F2], [F10] or [Ctrl+alt+esc] keys. Many other laptops can also set up the motherboard BIOS through a dedicated program.

Failed to boot after the CMOS is cleared: Failure phenomenon: In the BIOS modified the hard drive parameter settings, after saving reboot, in the system self-test, the speaker alarm sound, start failure. Turn off the computer, the motherboard above the jumper to clear the CMOS, and then set the jumper to the default state after the power-on, power LED is not lit, the CPU fan does not turn, the computer can not start. Fault analysis and processing: it is estimated that after switching off the computer and socket, the computer power plug due to the quality of the socket problem, still under the charged state, resulting in the elimination of the CMOS is not successful. Unplug the computer power socket, plug in again, then turn on the computer power switch, you can clear the fault.

Boot time memory detection for a long time: failure phenomenon: After the motherboard changed once, each boot memory to detect a very long time to enter the operating system. Fault analysis and Processing: memory detection is a necessary process for computer to start. It is estimated that the "Quick PowerOn self Test" item is not set to "Enable" in the BIOS so that the memory is checked 3 times. Set it to "Disable" and then save the exit so that it can be quickly tested for memory when it starts.

BIOS can not set: Failure phenomenon: After the computer boot into the BIOS setup program, in addition to setting the "User password", "Save Modify Exit" and "Do not save Exit" 3 items, the rest are inaccessible. Failure Analysis and processing: This phenomenon is estimated to be damaged CMOS, you can try to discharge treatment, if the CMOS discharge after the failure can not be resolved, you can also try to upgrade the BIOS. If the failure persists, it may be a problem with the CMOS memory and replace it.

The computer is not normal after the BIOS is refreshed: malfunction: A computer can be started after the BIOS is refreshed, but sometimes it freezes when it is not finished, or when it enters the operating system. Failure Analysis and processing: The cause of the problem should be caused by refreshing the BIOS, it is estimated that the BIOS program or BIOS version of the other motherboard is not correct. Because motherboard manufacturers often launch a chipset of the motherboard, will be introduced after the upgrade and improved version, so you can add some new features. For this upgrade and improved version, there is no significant change in functionality, so the hardware design changes are very small, the BIOS program is very similar. So, even if the BIOS is wrong, sometimes it can be started. Since the computer can also be started, you can try to enter the DOS real mode to brush the original BIOS program back, you should be able to solve the problem.