One difference between a personal computer (PC) from the laptop - is the presence of some additional features to adjust the operation of all hardware components.Manufacturers of portable computers do everything possible to reduce the percentage of applications to their users service centers, but in the field of stationary technology developed completely opposite situation.The reason for the injustices - historical.The first PCs were rather expensive devices and their users, for the most part, these enthusiasts.It's now support call for help has become commonplace, and at the dawn of computing such a service was available only to a few.The desire to figure in the PC and access the settings caused the visiting computer's BIOS setting options of components.Here it was subsequently implemented the ability to disperse (unofficial improve performance).Many motherboards have special copper soldered pins, findings which, being closed jumpers in a certain order, allows you to set the desired frequency and multipliers, as well as the ability to reset the BIOS allowed jumper.
Basic Input Output System (BIOS) is a small firmware, located in one of the chipset of the motherboard.Each time you turn on your PC, this program is run, test components, their configuration, and performs control to the loader.Users can make their own adjustments, this process, for example, set the frequency, voltage adjust, boot priority, set a password, and so on. In the PC to enter the settings you need to press DEL immediately after switching on.Errors in the settings, for example, the inflated rate, may make it impossible to start the computer (and even after the black screen).In this case, you need to reset the BIOS.Now he is gradually replaced by a new decision - UEFI, but that's another story.
on modern motherboards still have these pins, but with each new generation socket (CPU socket) they are becoming smaller.It is quite natural: CPU manufacturers are increasingly blocking overclocking, and the work of other components is adjusted automatically (or with minimal adjustments by the BIOS).But one thing has remained, as before, that the pins, which are used to reset the BIOS.They are installed on most boards, but there are options with a small button.
which requires resetting the BIOS?Two main reasons: the need to reset the password to the factory settings.Making changes in the BIOS, it should be understood that what is done.Otherwise, very easy to get an inoperative system and will have to completely reset the BIOS.All these settings are stored in the BIOS chip due to button-type battery on the board.The closure of the jumper pin (or any other metal object) should be short-lived.This chip loses all settings made by the user, returning the BIOS to its original state.If you want to reset the BIOS, it can be easy to do, because the very possibility is provided by the motherboard manufacturer.
Also reset, the update may be required after flashing BIOS with a newer version.Despite the fact that after such a reset operation changes to the settings is possible in the BIOS, hardware reset jumper preferable.In some cases this is the only way to ensure stable operation of the computer after the BIOS update.
Procedure reset as follows: turn off the computer - to find the desired board pins (they are signed, for example, Clear CMOS) - shorting link or a metal object 1-5 seconds - will return the jumper to its original location - turn on the computer.What exactly needs to be close, you can see the manual for the motherboard.
