Tips for Safety Operation with BIOS Setup

Operation with BIOS Setup is connected with some risk as a system may be unstable or not operate at all because of failed or negligent changes of parameters. There are several helpful tips which allow minimizing the risk:

  • Try not to experiment with BIOS on computers which process or store important information. Think about backup of valuable data before setting or overclocking by using BIOS.
  • Before changing parameters always remember or better write down their former and new values. This will allow you to return the former condition of the system if it is unstable with new settings. You may also make photos of screens with BIOS Setup.


You may use BIOS profiles for saving parameters on newer motherboards.

  • Do not change parameters, the values of which are unknown for you.
  • Do not edit several parameters which are not connected with each other in a single session. It will be very difficult to determine which of changed parameters had caused the problem.
  • Do not overclock your computer without special preparation.

Unfortunately, it is not always possible to foresee everything in real life, and it happens that after all changes of BIOS settings stops normally operating or does not operate at all. If the reason is only in wrong setting of BIOS parameters, the system may be restored in several ways:

  1. If you can enter BIOS Setup after rebooting the computer, it is necessary to set the former values of edited parameters. All changes must be written beforehand.
  2. If you have not written all changes, you should not change all the parameters. In this case you may try to restore the system by booting default parameters by pressing “Load Fail-Safe Defaults”. Then you should reset the system for optimal operation.
  3. Sometimes the computer may even not turn on because of wrong BIOS settings. In this case you must reset all BIOS settings.