Advice 1: How to enter the BIOS on a laptop Lenovo

BIOS is the basic structural system of the computer, whose task is to test the computer's hardware before the operating system starts. The BIOS usually looks like a text table. Navigation through the table is accomplished using the menu keys. BIOS setup Lenovo notebook allows you to change the connection settings of the devices as well as choose the source for booting the operating system of the computer.
How to enter the BIOS on a laptop Lenovo
You will need
  • instruction manual for Lenovo notebook.
Instruction
1
Connect the laptop to the mains. If during operations, with BIOS suddenly lost power, it may have a negative impact on further operation of the computer.
2
If no instructions for the laptop Lenovo, you will have to go online and find out the necessary information on the website of the manufacturer (http://www.ibm.com/ru/ru/). This can be done in online mode and download the user manual in the form of the expanded PDF file. To read this manual, your computer must be equipped with a special program, such as Adobe Reader (http://www.adobe.com/ru/) or Foxit PDF Reader (http://www.foxitsoftware.com/).
3
If, for technical reasons, the Internet is impossible, you will have to act independently. Turn on the computer and watch for the appearance of the information on his screen. Usually to facilitate the user's life at the beginning of the laptop for a couple of seconds (the time until the BIOS conducts a test poll devices in the computer) there is a hint in the form of the name key or combination of keys that you must press and hold until until the laptop will not work in the BIOS table.
4
Note the symbols F2 and F12. These keys on laptop Lenovo designed to interrupt testing devices and prevent loading the operating system.
5
Press and hold the F12 button on the keyboard. So you indicate your wish to enter one BIOS partition, which is called Quick Boot. This small but very important part of computer architecture is designed to prioritize boot the computer. Going into the priority table, you can change the order so that after a successful working BIOS the computer is first turned, for example, CD-rom, then to a USB port and then to the HDD. Such an operation with a load line characteristic of the reinstallation of the operating system on the laptop.
6
Press F2 to enter the main BIOS menu. Here, the experienced user gets access to the settings of a large number of parameters of various devices. Unlike a normal PC, in the BIOS of the notebook also allows you to:

- set the security system;
- to change the nature of the work of the touchpad;
- to adjust the output image on the display;
- calibrate the battery and view the serial number of the device, its motherboard and other equipment.

Advice 2: How to install the BIOS yourself

BIOS is the basic software that allows you to interact with your computer without accessing the disk. Here are the codes through which you can manage all the system devices, ports and drives. The BIOS is sewn into the ROM chip (ROM) on the motherboard. In most cases, when the system starts copying data from ROM to RAM speed which is much higher.





Standard BIOS, running smoothly. However, in situations where the microcode is insufficiently worked out, there is a discrepancy of the motherboard and integrated devices, there is more modern equipment, there is a need to set the BIOS again.




What it takes to install the BIOS again?


For flashing the BIOS will require special utilities developed by the manufacturer of the motherboard or other companies. With these products, all necessary installation firmware stored in the CMOS chip. It is advisable to use the "native" utilities that are available on the CD that came with the motherboard, since they are fully adapted to the specific equipment and eliminate the possibility of occurrence of faults or errors.



As CMOS in modern motherboards is something more than a flash-memory with firmware and settings, in order to properly install the BIOS, you should find a file with its corresponding version of the program-flasher.



By the way, flash the BIOS from Windows is better, because it's more convenient. The same operation from DOS takes a lot of time, will require some ingenuity, though, and is more reliable. Moreover, there will have to create a boot floppy with the program flasher and firmware BIOS.



And a few important nuances. Before starting work it is important through the program-flasher to backup the current BIOS to external media. This will allow you to go back to the old version in case of failure.



It is necessary to ensure stable power due to the "battery backup". Otherwise, sudden surges will drive all the work.



When flashing BIOS from Windows will have to close all active applications and disable antivirus program.

What we should be ready, if you want to install a new BIOS?

Even a small mistake in flashing the BIOS can cause serious complications. Therefore it is necessary beforehand to prepare for their elimination. In particular, when power failure or system hang will have to use a programmer. Although in this case it is advisable to apply to specialists.



If you do not fully complete the BIOS firmware, it is rational to apply the following method:



  1. Remove the CMOS with the same serviceable enabled motherboard.

  2. In the nest laid a few strands, through which subsequently will be easy to remove the chip.

  3. Install corrupted CMOS.the corrupted counterpart.

  4. Run the IOS firmware

  5. When the motherboard produce the reverse exchange of chips.




If the BIOS is password protected then you can go in several ways:



  1. reset CMOS with a jumper on the motherboard;

  2. reset CMOS by removing the usual batteries;

  3. to use the engineering password as specified in box;

  4. password hack is a special software.


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