Most of us are using computers or laptops, do not think about how these electronic devices work.The developers of modern software designed operating system understandable to all interfaces.But sometimes there are times when the most incompetent user to have to deal with concepts such as re-installation "OSes" or adjustment of the system.The basis for linking all the elements of a computer and controlling his work is BIOS.He is responsible for everything from the temperature of the CPU and the correct boot and finishing maintenance programs when the hard disk and random access memory.At the slightest failure BIOS will detect the problem and will provide an opportunity to fix it.Therefore, without his "consent" to carry out any changes in the computer will not turn.
primary boot
In English the acronym BIOS stands for "Basic Input Output System."This set of firmware, responsible for supervising the operation of the processor, graphics card, RAM, hard disk and connected devices.
the first time it was used by specialists from IBM, and he called the primary boot loader.Its main function - is testing and adjustment of the equipment, as well as the loading of the operating system.Given that the BIOS is responsible for booting, all of its program elements should be available immediately after power-up, so they are not stored on the hard drive and stored in the memory of one of the microchips located on the motherboard.This chip even has its own power from the constant element of 5V, also located on the "motherboard".
Types BIOS
Bios in the laptop is no different from the computer.Today, there are three main types of primary downloaders:
- AWARD;
- AMI;
- UEFI.
first two nothing special, except for the menu view, no different, have only English interface and control keys.They are used in almost all brands of computers and laptops.UEFI - a completely new kind of BIOS, with a graphical user interface, as well as the ability to control via "mouse."Used since 2011 only in the latest models of computers and laptops.More experienced users know that enter into the primary boot loader on a PC is easy enough after power press F1 or F2, both the laptop Lenovo.Enter BIOS on laptops from other manufacturers is also easy, but not having the manual need the model name and version.
Given that the electronics market today orgy Chinese laptops of various brands, their bootstrap algorithms are different.Login BIOS Lenovo, for example, is fundamentally different from the procedure on the Toshiba or Asus, which uses keys F12, Dellete or Esc.
How Lenovo laptop to enter the BIOS?
Laptops of this brand have gained wide popularity in our country.Affordable price and reliability make them indispensable both for work and entertainment.Of course, sometimes it is necessary to carry out the necessary settings or reinstall the operating system.But how to enter into the Lenovo laptop BIOS, know not all.This is due to a variety of models, most of which, like G500, G505, G510, B590 and V580c, let you enter the recovery environment or BIOS by pressing the keys F1 or F2.On some models built before 2010, you need to combine multiple buttons, such as Ctrl + Alt + Ins.
If during system startup, press and hold the F12, the menu appears Quick Boot (subsection BIOS), allowing to set the boot order and choose for her the appropriate resource (HDD, CD-rom or USB).
What not to do on their own?
Now that you know how to Lenovo notebook computer to enter the BIOS before you make any changes, will not be superfluous to know a few rules in order not to damage it:
- not connect the power of the laptop and disconnect it,It is in the BIOS.
- Do not experiment with changing the settings and, in particular, to independently produce "overclock" the processor or graphics card.Such an operation at the slightest mistake will cause damage to the device.
- not recommended to change the system date.This will lead to a conflict with the operating system.
Having basic knowledge in the use of computer programs and following these simple rules, we can without any problems on their own to make the settings of your notebook.
