None, even the simplest, Computer Engineering can't do without basic system input-output. She, like many other things in the computer field, received a Russian abbreviation based on English name. In addition, often the word meaning system is used in the masculine gender. The word "BIOS" comes from Basic Input/Output System (BIOS). It is physically represented by a microcircuit on the motherboard, in which a block of specialized microprograms is recorded.
When the computer is turned on, control is transferred to the BIOS programs, which perform basic tests of all major components, assign free IRQs to devices, and configure all hardware components. After completing all the tasks, they are polled disk drives and the download is in progress.
Extract from system block video card or a single memory module and turn on the computer: the speaker will announce a problem with the hardware with a loud squeak. This is one of the results of the work of test firmware: if there is no video card, then it is impossible to work, which is obvious, etc. In addition, the BIOS provides the operating system with the ability to access components. It should be noted that as operating systems improved, it became possible to transfer some of the BIOS functions to them. In particular, hardware configuration can be performed not only by the BIOS, but also by the system. The user is given the opportunity to make adjustments to most stages of the basic system. Currently, the classic BIOS is gradually beginning to be replaced by its successor - UEFI (Unified If the BIOS has a simple graphical shell, in which the mouse is supported, then this is UEFI (at least, this is the situation now). No wonder so many people want to know how to start the BIOS. In educational books, the study of the computer begins with this.
Frankly, without knowing how to run BIOS, full-fledged work it won't work with a computer. Before installation operating system BIOS needs to be configured. In personal computers, there has been a standard for entering settings for many years. You don't know how? You can start the BIOS in the following way: Immediately after switching on, press the "Del" button frequently. Although the fact of pressing the buttons is interrogated at a certain moment, it can sometimes be missed, so we often press immediately, without waiting for a hint.
By going into the BIOS settings, you can select the mode of operation of the USB ports, overclock the processor and RAM, adjust the boot order with various devices, tell the system how to initialize hard controller disks ( SATA mode or compatible with an IDE). This is only a small part of all the possibilities, so knowing how to run BIOS is a must.
Unlike personal computers, among laptop manufacturers, alas, there is no standardization that allows you to quickly figure out how to start BIOS. That is, pressing familiar button"Del" does nothing. Why this is done, history is silent, but an additional headache for the owners mobile computers secured.
In this case, it is recommended that you carefully read the messages displayed on the screen before starting the system boot. Often desired button indicated there. You can also try pressing Esc (Toshiba laptops), F2 (common), F3 (Dell and Sony), F10 (Compaq), and of course Del (Acer).
The forums often ask the question "how to install BIOS?". It is not entirely correct, although understandable. AT this case I'm talking about updating an existing BIOS. After release motherboard or laptop with certain versions BIOS for sale to users who have purchased the product for quite a long time (sometimes several years) is given the opportunity to download from the developer's website updated version firmware and replace the existing one. New versions can add missing options for setting parameters, improve compatibility with equipment, work more correctly, etc. The sites always contain a list of changes - you should definitely read it before reflashing The program for updating and instructions for using it are usually provided along with the update file .
BIOS is a program built into the computer. With this program, we can perform basic computer settings, for example, control the speed of fans, set a password on the computer, monitor the temperature of components, and so on.
If you need go to BIOS on your laptop or computer, then doing it yourself is very simple. To do this, turn on the computer and immediately press several times on the keyboard delete key. Press this key several times until until you see BIOS on your screen.
Look Various types BIOS like this:
I should immediately warn you that on some computers, the key to enter the BIOS may be different. For example, to enter the BIOS on a laptop, I use keyF2 , while on a computer it is buttonDEL. In your case it could be F1, F8, F10 or even Esc. It all depends on the motherboard. But most often, to enter the BIOS, you need to use the key DELETEorF2 so try those first.
Install boot from disk or flash drive
If you decide to open the BIOS, then of course it’s not just like that :) Most likely, you decided to reinstall Windows, and for this you need to boot from a USB flash drive or disk in the BIOS. BIOS may vary slightly depending on your computer or laptop! I will show you with my example, and you will already be looking for similar buttons.
Once in the BIOS, we immediately get down to business. Using the arrows on the keyboard, we move to the right until we find ourselves on the Boot tab. There we need to open boot menu device priority.
In the window that opens, put your drive in the first place. We become with the help of arrows on the first point and press Enter. In the drop-down window, it remains to select the drive and press Enter again. As a result, in the first place will be floppy drive or usb flash drive.
On my laptop, you can enter the BIOS using the F2 key. There is also a tab Boot, opening which you need to put in the first place a flash drive or drive. This is done in a similar way. You need to move the mouse cursor to the device that you want to put in the first place, and press the F5 or F6 key several times until the drive or flash drive is in the first place.
Modern BIOSes are simpler and there is a Russian interface. In such BIOSes, you can work with the mouse. This is what happened with my new computer, where it is very easy to boot from a USB flash drive or disk. It is enough to open the SETTINGS section, then the tab.
In the window that opens we will see Download priorities and Device 1,2,3,4,5 and so on. In the first place you need to put a USB flash drive or disk, depending on what you want install Windows. After that, it remains to be saved.
Fine! These are the cases regarding entering the BIOS.
Why go into BIOS?
If you had to enter BIOS on your laptop or computer, then you certainly understand why this was done. But I think that I need to mention to the rest of the users the most common causes by which this program is opened.
The fact that the first thing you do is enter the BIOS, I described above. And this happens more often very often, that is, the user enters the BIOS in most cases only in order to change the computer boot from hard drive on the normal disk or flash drive.
2. Setting a password
Sometimes, to protect a computer or laptop from prying hands, through the BIOS. A password set in this way prevents the system from booting until it is entered correctly.
3. Touchpad setup
Some users really don't like it when, by pure chance, you hit the touchpad on a laptop while typing. So, it can be completely disabled through the same BIOS.
4.Temperature check and fan control
AT BIOS You can not track some components, as well as control the speed of coolers (fans).
Thank you for your attention, I hope I answered all your questions, and you were able to enter the BIOS on your computer or laptop.
BIOS- this is the basic input / output system of a laptop implemented in the form of firmware, in this system, as the name implies, the basic software modules, which allow your laptop to perform hardware diagnostics and transfer access to the computer's hardware to the operating system. BIOS setup is done using simple interface BIOS Setup, which visually looks like text tables. This interface is invoked with a specific keyboard shortcut. While standardization has recently taken place on large stationary computers, and the BIOS call key is almost always the Del key (very rarely, the F2 key), there is considerable diversity in laptops and netbooks to this day. As a rule, the key combination to go to the BIOS settings is written on start screen, while the computer is booting up, but it happens that this does not happen.
In order to enter the BIOS Setup on a laptop, you can try the following keyboard shortcuts:
Del- The most popular key to enter BIOS Setup
Esc- Almost all Toshiba (after pressing Esc keys the computer screen will prompt you to press F1 to enter);
F1- Most Lenovo, including some IBM, HP, Dell, Packard-Bell, Gateway;
F2- Acer, Asus, Samsung, RoverBook;
F3- sometimes found in Dell and Sony;
F8- iRu, some Dell models;
F10- Toshiba, Compaq (the key should be pressed when the blinking cursor appears in the right upper corner display);
F12- Lenovo and others;
Ctrl+F2- Asus;
Ctrl+Alt+Esc- some Acer and others.
You should also try the combinations Ctrl+Alt+Del, Ctrl+Alt+Ins, Ctrl+Alt+Enter, Fn+F1, Ctrl+Ins, but these options are very rare.
Calling BIOS Setup
After the initial initialization and passing the self-test procedure, an inscription usually appears on the laptop display that indicates how you can enter the BIOS Setup. The system, for example, may issue the following message: Press DEL to enter SETUP. However, even if the prompt does not prevent you from entering BIOS Setup. After the keyboard has been initialized (you will notice this by the blinking Num Lock indicators, cap lock and scroll lock press the button that calls the BIOS bootloader several times in a row. If this does not help, then you should try other key combinations given above. In order to be completely sure, you should press the key combination several times, since after that you can be completely sure that the pressing happened exactly in right moment. It should be noted that often the initialization of the entry into the BIOS Setup is accompanied by the appearance of a corresponding inscription on the display: for example, it may be the message "Entering SETUP".
It can be seen that, in comparison with BIOS settings on a desktop computer, some laptops have:
Possibility of advanced management of password infrastructure and other security systems
Touchpad control settings
Monitor output settings
Ability to calibrate the battery
Ability to view serial numbers laptop, system board and other equipment.
At the same time, in the BIOS of laptops, there are much more modest options for setting up equipment, as well as overclocking.
No access to base system settings laptop computer today is unavoidable. Connecting new equipment, reinstalling the operating system or the overlocking process - all this implies knowing the question of how to enter BIOS on a laptop. If you are experiencing some difficulties in the process of accessing the main control system of the functionality of the laptop, then this article is written especially for you.
Introduction to the technical features of laptops
Despite significant differences both in functionality and in terms of traceable originality of structural design, modern laptops everything is also united by a certain generally accepted scenario for accessing BIOS firmware - this is the activation, defined by the manufacturer, of a special button on the device's keyboard. After that, there is a direct entry into the interface of the basic input / output system.
So, take a look at the list of key keyboard shortcuts below:
As you can see, some brands support the same "keyboard standard" (and the same login process - at the time of starting the laptop, you still need to press the "cherished button" intensively). Often, this kind of similarity is a sign of the use by different manufacturers a specific BIOS program from the same developer. However, the assignment of the duty keys through which the call is made System BIOS, still remains the prerogative of a particular brand.
Remote buttons "Novo Button" and "Recovery Key"
Some laptops are equipped with special buttons, whose main function is to start the recovery mode. However, in service menu mentioned service, there is also an option, by activating which the user freely goes to work area BIOS interface, where it can change the current parameters and settings of the laptop's basic input / output system.
Windows operating options for entering BIOS
When the eighth version of the Microsoft OS preinstalled on a brand new laptop (relevant for 10s as well) leaves no chance for the user to access the BSVV, due to its incredible download speed, the method described below will come in handy.
- Enter the Options menu.
- Go to the item "Change computer settings" in the next window.
- Now - "Update and Recovery".
- And again, the activation of the item of the same name in the window.
- Block " Special options download" - click the "Restart now" button.
- Then, "Diagnostics" - "UEFI Firmware Settings".
- Click on the familiar "Restart" button.
By the way, the details are in the pictures. . It is up to you how convenient it is to use this method of switching to Bios. However, to the settings main system control so you always get access.
Sometimes things get really complicated. The laptop stops responding to any tactile user calls, and attempts to enter the BIOS fail.
In this case, you can try to disconnect first optical drive for disks, if it doesn’t help ... remove and HDD from the depths of the laptop. Both the first and the second action must be done with increased attention and extreme caution. memory sticks and discrete graphics card can also cause "electronic frenzy".
Do everything in sequence, each time checking the result of the manipulations with the dismantling of laptop components. In most cases, after removing the hard drive, entering the BIOS becomes possible.
What to do next is the topic of another article. However, reset basic settings to the default values you will be able to execute. Not infrequently, it is as a result of such a kind of “therapeutic rollback” that everything falls into place. Then it remains only to return all the equipment to its place in the reverse order.
Battery
Finally
Well, as you can see, there are many ways to enter the BIOS settings of a laptop. Take advantage of the most suitable for you. And don't forget to do preventive maintenance on your portable device. After all, it is often digital trash and physical dust cause the above-described "electronic irresponsibility" effect. Performance and iron health to your laptop!
In most cases, it is enough to press the DEL key at the beginning of the boot. For desktop computers it is almost always the DEL key. In very rare cases, the combination Ctrl + Esc.
If you missed a moment and the computer started loading the operating system, then reboot again and press Del again. You can press more than once, but make a series of consecutive keystrokes.
The BIOS entry key (BIOS) does not depend on the operating system installed on your computer, be it Windows XP, Vista? Win 7 or other operating system.
How to enter BIOS (BIOS) on a laptop
Entering BIOS on a laptop is sometimes more difficult.
At the beginning of the system boot, at the bottom of the screen, it highlights the desired key or key combination to enter the BIOS. And when computers were slow, you could see what to press. Recent times the start of the download is so fast that although the inscription indicating the desired key is in the same place, it is usually not possible to see it in time. Try to press the Pause key at the right time to see the inscription.
If I don’t know the key for sure, then I start as usual with the DEL key, if not, then Ctrl + Esc. If this combination is not suitable, then iterate function keys top row from F1-F12. Most often, the desired key is F1, F2, F3, F6 or F8.
If you have tried all the function keys F1-F12 or F1-F10 if 11 and 12 are not.
Then go to the next keys or their combinations; these options are rare, but still Esc, Ctrl+Alt+Enter, Ctrl+Ins, Tab, Ctrl+F2, Ctrl+Alt+Esc, Ctrl+Alt+S.
If you tried everything you can, but you still couldn’t enter the BIOS, then look for the documentation for your laptop so that you know the right key for sure, and not experiment. Naturally, you can use the Internet to search desired key do not forget to indicate the manufacturer of your laptop. By specific model finding data is not always easy, but most manufacturers use one or two, less often 3 key combinations to enter the BIOS of all laptop models from this manufacturer.
Most often you need to enter the BIOS to change the priority of devices bootstrap. In many modern systems you can press F12 at the beginning of the boot, after which the device selection menu for the current boot will appear, without entering the BIOS.
