What is Bios?

To begin with, we give a small comparison. Many probably, even if not motorists know what a starter is, and he means for a car. When we turn the ignition key on, the starter receives a charge from the battery and the starter starts to start the engine.

So, BIOS (basic input system) for the computer has the same meaning as the starter for the car. As soon as you press the button on the system unit to turn on the computer, the first step is to start the BIOS. Physically, the BIOS looks like a small chip that is soldered into the motherboard. BIOS is a computer program that contains a certain set of instructions and performs the commands it contains.

Many probably noticed that the motherboard has a flat battery that serves as a power for the BIOS and save its settings, which the person contributes. If this battery sits down or you pull it out, the BIOS settings will go down to the factory settings. The battery is very easy to determine. Usually, when the computer is turned on again, the clock is once again lost, although the last time you set the time correctly.

As soon as the BIOS starts, then on the screen you will see gray English lines on the black background of the monitor screen. They contain information about the type and clock speed of the processor, the amount of RAM RAM, sometimes displays information about the video card. Also information about the connected hard drives and drives is displayed. Sometimes it displays information about the temperature of the processor, motherboard and other devices.

The task of the BIOS basic input system is to monitor every device that is connected to the computer and monitor its operation. The BIOS controls the power supply to the devices, the fan rotation control speed, and helps detect new devices in the computer. The operation of all devices depends on the BIOS. If the BIOS is not working properly, then when the computer is turned on the fans will make noise, however, you will not see the pictures on the monitor screen. Repair and tuning of computers in the city of Volzhsky.

Another no less important task of the BIOS is to find the operating system on hard disks. After the BIOS detects the operating system on one of the hard drives, it will start downloading it and transfer control of the computer to the operating system. If there are several operating systems, then BIOS settings determine the priority of choosing the operating system for downloading.

If the operating system does not detect the BIOS, the boot will not occur and the BIOS will display a message that the boot device has not been detected.

If you have problems with the BIOS, then the computer will not turn on at all, that is, it will turn on, and the screen will be black, as it does not work for the video card. Also when problems with the BIOS are sometimes issued a blue screen with an error of 0x000000a5.

The first thing you can do yourself is to disconnect the computer from the socket and remove the battery from the motherboard. This is done in order to reset the BIOS settings, there may be a problem with this. If not, and you also have a blue screen of death with error 0x000000a5, then remove the motherboard and take it to a service center for a BIOS flashing, usually this service is inexpensive.