Gigabyte does not enter BIOS black screen. How to enter BIOS? (all options)

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After publishing a series of materials about overclocking computer components We began to receive questions from readers revealing ignorance of basic things related to configuration System BIOS plat. We mentioned that you should approach overclocking already having initial theoretical knowledge in this area. However, apparently, many PC users are interested in getting a free performance boost (and more).

This material is intended to help beginners navigate basic system setup.

This article will talk about quite simple concepts related to working with motherboard firmware configuration. To begin with, let's decipher the abbreviation BIOS - Basic Input/Output System ( basic system input/output). This is a kind of software written into a chip with non-volatile memory, which allows you to carry out initial initialization of PC components and configure their operating modes. The BIOS contains the microcode needed to control the keyboard, video card, drives, ports, and other devices. For the average BIOS user is identified with a visual shell, which allows you to change computer settings if necessary.

We also note that the answers to most of the questions raised in this material can be found in the motherboard manuals. Alas, few users who want to know everything at once pay attention to the brochures supplied with these products. Sometimes the manuals are quite sparse, but nothing prevents you from familiarizing yourself with those devoted to other lines of boards from the same (or another) manufacturer - the basic BIOS options are standard, and what is applicable to one firmware is often suitable when working with another. The mastery of this material is facilitated by knowledge in English- a banal translation of terms will help you navigate the search for the necessary parameters.

What types of BIOS are there?

The differences in firmware come down not only to the abundance of settings and adjustment ranges of individual parameters. First of all, this is the microcode of a certain developer, which ultimately determines the visual shell. For example, the BIOS of ASUS motherboards is based on code from AMI (menu with blue symbols on gray background), most manufacturers use Award/Phoenix (blue background, yellow letters). Recently, extensible firmware interfaces EFI (Extensible Firmware Interface), distinguished by an extraordinary graphical interface, have become widespread. They allow navigation using not only the keyboard, but also the mouse, and menu items have become even more intuitive.

How to get into BIOS

To enter the BIOS, you must press the corresponding button on the keyboard while initializing PC devices (going through the POST procedure). If the motherboard firmware is based on microcode from AMI, it will be F2, Award - Del. In order to get into the BIOS of some laptops, you will need to activate the F8 key. However, even if you don’t know what microcode the board’s firmware is based on, during the device initialization process, a hint message will definitely appear on the screen (for example, Press F2 to Enter Setup - “Press F2 to get to the settings section”). If the monitor does not light up in time, after turning on the PC, regularly and often press the required button or, if you are not sure which one, try Del, then F2.

Selecting and changing firmware settings

BIOS settings are controlled exclusively from the keyboard. To move the cursor, use the arrow block (Up, Down, Right, Left). To change the desired parameter, highlight it with the cursor, press Enter and select one of the available modes. If Board BIOS is based on microcode from AMI, for the same purposes you will have to use the “+” and “-” buttons. Setting certain values can be done directly from the numeric keypad (for example, if you need to change the frequency system bus from 266 to 320 MHz, hovering the cursor over the appropriate position, enter 3, 2, 0, then Enter). To go up one menu level, press the Esc key, exit the BIOS - perform a similar operation in root directory. Often it also contains explanations of options for managing firmware settings. When exiting the BIOS using the Esc key (without saving the settings) or F10 (with saving the settings), a window will definitely appear asking Do you want to exit/save the settings? To confirm, press the Y (Yes) button, to cancel - N (No).

BIOS Basics in Pictures

The system is undergoing initialization procedure (POST). To get into the BIOS, in this moment you need to press the Del key (this is indicated in the lower left part of the screen)

Basics BIOS menu one of the motherboards manufactured by Gigabyte. Below are brief tips - descriptions of the purpose of individual keys

The section devoted to fine-tuning the operating modes of the main system components (processor, RAM) can be called differently. IN in this case This MB Intelligent Tweaker(M.I.T.)

Standard CMOS Features- menu item available in BIOS any fees. Allows you to set the date and time, as well as view a list of FDD, IDE and SATA devices connected to the system

Advanced BIOS Features, or Options, is one of the most important sections related to system configuration. In our case, it is possible to control boot priority, individual CPU technologies and the visual design of the splash screen

In chapter Integrated Peripherals implemented on motherboard function blocks ( LAN card, audio codec, IEEE 1394, USB ports, IDE and SATA controllers), their operating modes are set

Power Management Setup- control computer power, turn on/off without using a button Power system unit

In subcategory PnP/PCI Configurations has nothing interesting for the average user. System addressing settings are hidden there

Chapter system monitoring - PC Health Status. Allows you to track temperature regime operation of PC components, main supply voltages, control the number of revolutions of system fans

In this BIOS management parameters important for overclocking a PC are concentrated in one section. Things may be different with the settings of boards using firmware from AMI - similar options are sometimes located in different subcategories of the main menu

BIOS updates - is it worth doing?

Manufacturers at the time of announcement a certain model motherboards do not always have time to develop optimal firmware for it. Therefore, over time they are released BIOS updates, available for downloading from the official websites of manufacturers. A list of improvements that a particular firmware version has is often given in the description. Is it worth constantly updating? Motherboard BIOS fees? If the PC works well, and overclocking the components is not limited to the board, then there is no need to do this. The firmware should be changed only if there are significant changes in certain parameters, expansion of functionality, and sometimes the introduction of support for new processor models.

Information on how to update the firmware is also available on the manufacturers' websites. Owners modern products they do this directly from within the OS, using specialized utilities. To update the firmware of older boards, you need to get a disk drive. When upgrading the BIOS, be extremely careful - power loss, premature pressing of Reset button before the operation is completed, and the motherboard will have to be sent to a service center. There may be freezes caused by defects in utilities from manufacturers. So don't overdo it in pursuit of every new one. BIOS version, after all, they do not seek good from good.

After changing the settings, the computer does not boot. What to do?

A typical situation that accompanies the activities of overclockers is the inability to boot the PC after installing it in BIOS incorrect parameters. Many modern motherboards implement reset technologies in such cases. However, they do not always work, and not all boards are equipped with them. But this is not a reason to get upset, panic and say that the computer is broken. Any motherboard has a special jumper for forced reset all installations to Default mode, often referred to as CLR_CMOS (or Clear CMOS). Its location must be indicated in the board's instruction manual. The jumper may take the form of a special button located on back panel (similar solution found on top ASUSTeK boards), or be soldered in the area where the battery is located. If it has three contacts, two of which are closed by a jumper (a similar circuit is used in most products), you need to move the jumper from one position to another for a few seconds while the computer is turned off (say, 1-2 → 2-3) and back. Sometimes a jumper has only two contacts (often found on Gigabyte boards), then they need to be connected with a conductive object (for example, a screwdriver).

If after resetting the system goes through the POST initialization procedure, but does not boot into the OS, make sure that the hard drive is displayed in the BIOS and is listed as the first number among the available boot devices. At using HDD with an IDE connector on modern motherboards, you will probably have to configure the operating mode of the external controller (Configure SATA Interface as IDE). After carrying out the described manipulations, the system should boot successfully, except in cases where the OS fails (such complications are possible, especially when playing for a long time with memory timing settings, but they occur extremely rarely).

Basic BIOS sections - where to look for what

It is absolutely not necessary for a novice user to thoroughly study every item of the firmware in order to configure the system. Therefore, we will briefly talk about the main features available in the BIOS of all boards.

From the basic sections we highlight Standard CMOS Features, Advanced BIOS Features And Integrated Peripherals. The first one displays current date and time, amount of RAM, a list of IDE- and SATA-compatible system devices. You can also change the clock settings through the OS, so the value of this section lies in the initial diagnostics of the PC: it monitors which drives, hard disks are connected and determined at the hardware level and which are not. In Advanced BIOS Features (or the Boot menu, if the firmware is based on code from AMI) the boot sequence priority is set. There are cases when the operating system on the HDD is not initialized only because the FDD containing the floppy disk or the CD-ROM with the boot disk is selected first in the list of devices. Until you remove the media, don't expect to see the OS. Immediately install the hard drive first - you will never go wrong. The Integrated Peripherals section is interesting because it allows you to disable controllers soldered on the motherboard, thus managing the functionality of the PC. If there is no sound in your system when the speakers are connected correctly, check whether the audio codec is activated (the submenu value should be Enabled or Auto). The situation is similar with network controller, IEEE 1394, etc. Pay attention to the paragraphs dedicated to USB. Be sure to activate the appropriate controller and enable USB keyboard and mouse support. Depending on the positioning of the motherboard and its features, the Advanced BIOS Features and Integrated Peripherals sections may contain different system settings. You should pay attention to a brief study of the settings proposed in them.

Of the sections available in the BIOS of most boards, we will also highlight the sections for system monitoring (PC Health Status), power management (Power Management Setup) and configuring data bus addresses (PnP/PCI Configurations). The last two are of no interest to most. The most valuable thing for the average user is the monitoring section, which displays the temperatures of the main PC components (CPU, chipset) and the current voltages supplied by the power supply, and also has the ability to control the fan speed. However, you should not trust these sensors unconditionally - their readings can be inaccurate.

Settings that determine the performance of the PC and the operating modes of the main components are located in one or more adjacent subsections of the BIOS. It is possible that they may not be there at all - don’t expect to find them on a cheap motherboard for office computer options for seriously increasing supply voltages, setting RAM timings, and controlling CPU parameters. We talked about the relevant points in more detail in the materials devoted to overclocking a PC, so we won’t dwell on them now.

Most of the settings that can be changed through the BIOS can be changed using specialized utilities install directly into the OS. However, this method is often inconvenient - every time you boot the computer you need to launch additional software and activate certain settings. When you reinstall the system, they will be lost. Therefore, if you want to be on friendly terms with your computer, you will have to study the motherboard BIOS.

Afterword

Perhaps this material does not describe all the nuances of working with the BIOS that beginners would like to know. However, do not be upset if you have not found the answer to your question - first of all, remember where the instruction manual for the motherboard is located, and carefully study the section on firmware. If there is no brochure or the description is too sparse, you can download an extended version from the official website of the motherboard manufacturer for a specific product, or simply search good guide from a third party manufacturer. It is likely that the settings mentioned there will be largely similar. If you are not sure, ask again on specialized forums of thematic resources, although we do not see anything wrong with studying the BIOS on your own by trial and error. The “magic” CLR_CMOS jumper for resetting settings is available on any board, and it is almost impossible to damage any component without radically changing the power parameters (for example, increasing the voltage on the processor by 80% of the nominal value).

If, after carefully examining the BIOS of the motherboard installed in your PC, it suddenly turns out that certain settings are missing, do not be upset. On Gigabyte products, to activate the section responsible for fine-tuning the memory subsystem and CPU operating mode, after entering the BIOS you need to press the key combination Ctrl+F1. In other cases, it is quite possible that some options really are not there. A similar situation is typical for budget motherboards. In their firmware, sections on fine tuning and power management of PC components are either very scarce or completely absent. However, it is likely that the required parameters can be changed from under the operating system using specialized utilities.

A few words must be said about the new interface - EFI - which will replace the classic BIOS. Undoubtedly, a pleasant graphical shell will appeal to some users, but the convenience of its implementation should be judged only by testing the corresponding products. In the meantime, experienced overclockers are quite satisfied with the available capabilities, in which a complete setup of the motherboard BIOS to optimize the parameters of all components and overclock the PC takes from several tens of seconds to a minute. Too fast? Not at all. Learn the basics of working with firmware configuration, expand own knowledge, and it is possible that over time you yourself will become specialists in this field.

In the course of writing the above publications, I touched upon the topic of how to log into Boot Menu which is what I want to tell you about next. In general, I’ve been thinking about writing something like this for a long time. my friends asked me a lot of questions on this topic, but as they say, somehow they never got around to it.

And so the Boot Menu is a certain option that was created in order to make it easier for the user to perform the most common actions without entering the BIOS or UEFI settings, as is convenient for you. Her GUI looks like a window with a menu of different sizes, from small words to the size of the entire screen, depending on the device manufacturer. Loading Boot The menu occurs directly during the startup or reboot of a computer or laptop, and in order to appear in it you must press a certain key at intervals of about once every second or two. There are also laptop models that have a specific button for this action.

Entering the Boot Menu BIOS on desktop computers

The easiest way to find out hotkey motherboard to enter Boot Menu BIOS During the first few seconds of turning on the computer, you need to look at the bottom of the screen. Most manufacturers write in this place which buttons are responsible for loading the BIOS or Boot Menu. The option showing . must be enabled in the BIOS settings.

MSI motherboards

MSI motherboards run on system software from the company American Megatrends Inc. (AMI BIOS/UEFI have heard this, yes). Hotkey to enter Boot Menu They have a button "F11".

Gigabyte motherboards

Gigabyte once worked with software from AWARD Software International Inc. (AWARD) and now it has switched, like the previous one, to AMI BIOS. Then and now, the “F12” key was used to enter the menu under discussion.

Motherboards from Asus, Intel, AsRock, ECS and FoxConn

Asus works with AMI and uses the "F8" hotkey to enter. Boards from Intel operate on Phoenix-Award BIOS and the treasured button to enter the menu is “F9”. The following is a list of not the most famous manufacturers, however, I included them in the review; they may be useful to someone. Companies such as AsRock and ECS work on software from AMI and the hot key for entering the Boot Menu is “F11”. There is also a company like FoxConn whose hotkey is "Esc". Well, it seems like we’ve sorted out desktop computers.

How to get to the Boot Menu on a laptop

When entering the Boot Menu on a laptop, things are a little different. The whole problem is that during startup, information about hot keys for entering the required menu is not displayed on the screen with the logo. Therefore, in this case, you should refer to the device documentation.

Asus laptops

Laptops from Asus in older models they have installed system BIOS Phoenix-Award and, in order to get to the device boot menu, press the "F8" key. New models run on the AMI system and use the "Esc" button to enter.

HP laptops

I also use the “Esc” key to enter the treasured menu using gadgets from HP. But they have a slight difference from the previous device. In order to get to the Boot Menu, press the "Esc" key and immediately after it "F9".

Samsung laptops

The "Esc" button is also used in laptops from Samsung. In order to enter the device launch menu, you need to press the "Esc" button but only once then when the laptop boot screen appeared.

Laptops Lenovo, Dell, Acer, Toshiba and Fujitsu

Such famous laptop manufacturers as Lenovo, Dell, Acer, Toshiba and Fujitsu use the "F12" hotkey to enter the Boot Menu BIOS. In addition, Lenovo laptops have a menu from which you can also enter device boot mode. It is called “Novo” and in order to get into it you need to press the button of the same name located on the body of the gadget.

MSI and Sony laptops

Unlike others, MSI decided not to change anything in its gadgets and left the same hotkey as on motherboards for desktop computers. In order to get to the required menu on MSI laptops, press the "F11" button. And finally, the last participant in the review is Sony, which uses the “F11” hotkey to enter the Boot Menu.

More articles that may be of interest:

In the section on the question How to enter the BIOS on the GIGABYTE H170M-D3H motherboard asked by the author Caucasian the best answer is In what situations does it become necessary to enter the BIOS:
Overclocking your computer. Using BIOS you can specify not standard frequencies and voltages for the processor, memory and other components. This way, you can improve the performance of the processor and the entire computer.
Selecting a disk to boot the operating system. In the BIOS, the user can specify the drives from which the operating system should boot. In this case, it is possible to specify several drives from which loading is possible. In this case, the BIOS will try to load operating system from the first drive, and in case of failure will move on to the next one.
Enable or disable integrated components. Some integrated components (for example, sound card) can be disabled and enabled via BIOS.
Setting the system date and time. Through the BIOS you can specify the system date and time. When you reset the BIOS settings, the date and time information is also reset, after which you need to set the system clock again.
Computer status monitoring. Through the BIOS you can access some data about the state of the computer. For example, you can view the processor temperature.
Enable or disable some specific computer features.
How to enter BIOS
So, how to enter BIOS?
In order to enter the BIOS, you need to press a special key on the keyboard while the computer boots, almost immediately after pressing the power button.
Most often, when the computer boots, a message appears on the screen telling you which key you need to press. This message looks something like this: “Press Del to enter Setup” and appears at the bottom of the screen immediately after the computer starts booting. In most cases, in order to enter the BIOS you need to press Delete. Therefore, if when you boot your computer you do not see a message about which key you need to press, then try Delete first.
How to enter BIOS
However, it is not always used Delete key. Sometimes in order to enter the BIOS you need to press other keys or even key combinations.
Keys that are most often used to enter BIOS:
DELETE
F10
F11
F12
F1
F2
F3
Esc
In addition, on some PCs, the following key combinations can be used to enter the BIOS:
Ctrl+Alt+Esc
Ctrl+Alt+Ins
Ctrl+Alt+S
Ctrl+Alt+Del
Ctrl+Alt
Fn+F1
Ctrl+Ins
Ctrl+Alt+Enter
After you have entered the BIOS, you can navigate through all its items. Let's look at the main keys that are used for control in the BIOS:
Arrows – move up, down and sideways;
F1 – open partition using;
F6 or F9 – set standard BIOS settings;
F10 – save all changes in settings and exit BIOS;
Enter – enter the selected menu;
Esc – back or exit. Using this key you can go back to the previous screen. If you are on the first screen, you can close the BIOS using the Esc key;
Plus and minus keys – Change value. Use the +/- keys to change the selected value;
Tab – select a value;

Once again I encountered the glitches of my mother Gigabyte boards(before this there were problems with timings on expensive memory), in this case the GA-EP45-DS5 board.

Such a large, beautiful board, with “golden” radiators and heat pipes, with high-quality capacitors, a large number of USB and SATA connectors, in general, everything about it is good, but you can’t go into the BIOS!

I did it this way and that, but it didn’t work out quickly, I had to practice.

When loading, press the Del key as usual. The diagnostics are running and the result is a black screen with a cursor.

Of course, I googled it, the problem with the inability to enter the BIOS of a Gigabyte board is quite common (judging by the questions on various forums and groups) and the solutions are different, now I’ll try to group everything and give you a selection of tips from the network, also from my practice, and I’ll tell you how I got everything -we managed to get into BIOS Gigabyte EP45.

How to enter the motherboard BIOS on a computer:

1. When the computer starts, as a rule, a picture of the brand of the installed motherboard or BIOS manufacturer is displayed and you can see the control keys (for example, entering BIOS setup- DEL, recovery mode F9, menu for selecting the disk from which the computer will boot this time F8 or F12 and so on). We need to clearly identify the keyboard button to enter the BIOS (usually Del, but there may be another one, for example F2) and press it several times, we don’t have to rush too much, but we also can’t hesitate, otherwise we will reboot and try to press again.

2. It happens that the USB keyboard does not have time to initialize (determine itself) and pressing the Del or other key does not do anything, as the most reliable option in this case, use a keyboard with a PS/2 connector
or try switching your USB keyboard to another USB port and press the BIOS entry key a little later, not immediately when the computer starts (give time for the keyboard to be detected).

3. It happens that a buggy and “sick” screw does not undergo normal initialization and the boot process is delayed or even freezes and does not reach the BIOS entrance, so you can try disabling all SATA and USB devices(except for the keyboard, of course) and try to enter the BIOS without them.

4. It may be worth starting by resetting the BIOS settings to the default settings; for this, a jumper (jumper) on the motherboard is used - it is more correct to find this specific jumper in the instructions for the motherboard. Or you can do it simpler - unplug the computer's power cable and remove the BIOS battery, then close the contacts (where the battery was installed) to discharge the capacity and reset the BIOS settings.

5. Replacing the battery sometimes helps (here you need to take into account that if step 4 did not help, and the BIOS keeps the settings, date and time of the computer when the power cable is unplugged, then you don’t need to change the battery yet), on the other hand, if the battery is old, then You can replace it, it’s not very expensive, and you won’t have to go through the trouble of setting up the BIOS again in six months.

6. I read that some craftsmen tried to change the video card to another or use the built-in one, it helped someone, I tried it, in my case it did not help.

7. They say that if you connect the monitor via a DVI cable (not VGA or HDMI, just DVI without adapters), then it starts to enter the BIOS (this did not help me).

8. If all of the above did not help, then the next step is to restore the BIOS or, better yet, immediately update to a new version (if there is one) or downgrade the version if new version No BIOS.

The last point helped me.

It turned out that I had the BIOS version EP45-DS5 F13a, and it Beta!

I went to the website of the board manufacturer, Gigabyte, and found a list of BIOSes. It turns out that we have nowhere to go up, we can only go down.

I took the flash drive, cleaned it, it was in FAT32, just what I needed, downloaded and unpacked the contents of the motherboard_bios_ga-ep45-ds5_f12 archive into it, we need the ep45ds5.f12 file - in fact, it is the file with the BIOS.

After downgrading the bios, everything worked out, I was able to enter the settings the first time!

Great, the problem is solved, you can continue with the setup

You have boot CD-DVD disc and you want to install an operating system on your computer, in order to do this you will need tune accordingly BIOS and boot from disk. We can also use the device selection in the boot menu, but this function is not always present, for example. on old motherboards. There is also no universal button for logging in. BIOS or boot menu . Many motherboard manufacturers assign different keys.

The surest way to identify such keys is to read the documentation for this laptop or computer, but no matter what key it is, you must always press it at the very beginning of loading. As soon as you turn on your computer, it automatically starts, located in BIOS program BOOT-ROUTINE, which in turn calls the subroutine POST(English) Power-On Self Test), it checks the processor, RAM(RAM), HDD(HDD), motherboard elements and other major peripherals. One short the signal indicates that such a self-test completed successfully. This is what the passage might look like POST:

The most common key to enter the BIOS is DEL, we will give other options below. On the screen you see the following invitation: " Press DEL to run Setup", i.e. press the key DEL to log in BIOS. Also during the passage POST A graphical splash screen may be displayed that indicates the name of the computer or motherboard manufacturer.

List of the most common keys to enter the boot menu:

Acer- Esc or F12 or F9; Asrock- F11; Asus- Esc or F8; Compaq- Esc or F9; Dell- F12; ECS - F11; Fujitsu Siemens- F12; Gigabyte- F12; HP- Esc or F9; Intel- F10; Lenovo- F12; MSI(Micro-Star) - F11; Packard Bell - F8; Samsung- Esc; Sony Vaio- F11; Toshiba- F12

The menu for selecting boot devices looks something like this:

You just need to choose from the list required device and press Enter.

List of the most common keys to enter BIOS Setup : ABIT-Del; Acer(Aspire, Altos, Extensa, Ferrari, Power, Veriton, TravelMate) - F2 or Del; Acer(old models) - F1 or Ctrl+Alt+Esc; ASRock- F2 or Del; ASUS-Del; BIOSTAR-Del; Chaintech-Del; Compaq(Deskpro, Portable, Presario, Prolinea, Systempro) - F10; Compaq(old models) - F1, F2, F10 or Del; Dell(Dimension, Inspiron, Latitude, OptiPlex, Precision, Vostro, XPS) - F2; Dell(old models) - Ctrl+Alt+, or Fn+Esc, or Fn+F1, or Del, or Reset twice; ECS (Elitegroup)- Del or F1; eMachines(eMonster, eTower, eOne, S-Series, T-Series) - Tab or Del; eMachines(some older models) - F2; Foxconn-Del; Fujitsu(Amilo, DeskPower, Esprimo, LifeBook, Tablet) - F2; GIGABYTE-Del; Hewlett-Parkard(HP Alternative, Tablet PC) - F2 or Esc, or F10, or F12; Hewlett-Parkard(OmniBook, Pavilion, Tablet, TouchSmart, Vectra) - F1; Intel- F2; Lenovo(3000 Series, IdeaPad, ThinkCentre, ThinkPad, ThinkStation) - F1 or F2; Lenovo(old models) - Ctrl+Alt+F3, Ctrl+Alt+Ins or Fn+F1; MSI(Micro-Star) - Del; Pegatron- F2, F10 or Del; Samsung- F2; Sony(VAIO, PCG-Series, VGN-Series) - F1, F2 or F3; Toshiba(Portege, Satellite, Tecra) - F1 or Esc.

AMI BIOS - changing device boot priority.

When changing settings and navigating the BIOS menu, use the Enter, +/-, and arrow keys on your keyboard. Use the arrows to move to the tab Boot and select Boot Device Priority:

Here we will see boot sequence: floppy drive first ( Floppy Drive), then hard drive ( Hard Drive ), and the third device is turned off ( Disabled). If you want to boot from a disk, then you need the first device in this list to be a CD-DVD drive. Use the arrows to switch to the first device ( 1st Boot Device), press the key Enter and in the menu that appears, select CDROM. Booting from a flash drive is done in the same way.

To exit the BIOS while saving the settings you made ( Save and Exit), press the key F10 and confirm ( Ok) key Enter.

Phoenix-Award BIOS - changing device boot priority

Select from the menu Advanced BIOS Features and enter ( Enter).

Here, if we want to boot from the drive, we need to make sure that this device came first on the list. Use the arrows to switch to the first boot device ( First Boot Device) and change to CDROM. Then exit, saving the settings you made ( Save and Exit), by pressing F10.

Error sounds when passing Post

During the initial self-test of the system (pass Post) errors may occur. If they are not critical, then after withdrawal specific message The computer will continue to boot. If serious errors are found, computer system will try to inform the user about them, but often it is impossible to display such information on the screen.

In this case, you will need to be guided sound signals(they are supplied by the system speaker, speaker, upon completion of the procedure Post). Using them, the system reports the results of self-testing. Below is list of such signals For different versions BIOS ( BIOS). Therefore, if your computer beeps, then you can easily determine if your PC is faulty.

AWARD BIOS signals:

No signals

Continuous beep- the power supply is faulty.

1 short- no errors found.

2 short- minor errors found.

3 long

1 long and 1 short- problems with RAM.

1 long and 2 short- problem with the video card.

1 long and 3 short- an error occurred while initializing the keyboard.

1 long and 9 short- an error occurred when reading data from the permanent memory chip.

1 long repeating- memory modules are installed incorrectly.

1 short repeating- problems with the power supply.

AMI BIOS signals:

No signals- the power supply is faulty or not connected to the motherboard.

1 short- no errors found.

2 short- RAM parity error.

3 short- an error occurred during the operation of the first 64 KB of main memory.

4 short- the system timer is faulty.

5 short- the central processor is faulty.

6 short- the keyboard controller is faulty.

7 short

8 short- video memory is faulty.

9 short

10 short- it is impossible to write to CMOS memory.

11 short- external cache memory (installed in slots on the motherboard) is faulty.

1 long and 2 short- the video card is faulty.

1 long and 3 short- the video card is faulty.

1 long and 8 short- problems with the video card or the monitor is not connected.

PHOENIX BIOS signals:

1-1-3 - error in writing/reading CMOS data.

1-1-4 - error checksum contents of the BIOS chip.

1-2-1 - the motherboard is faulty.

1-2-2 - DMA controller initialization error.

1-2-3 - error when trying to read/write to one of the DMA channels.

1-3-1 - RAM regeneration error.

1-3-3

1-3-4 - error when testing the first 64 KB of RAM.

1-4-1 - the motherboard is faulty.

1-4-2 - RAM testing error.

1-4-3 - system timer error.

1-4-4 - error accessing the I/O port.

3-1-1 - error in initializing the second DMA channel.

3-1-2 - error initializing the first DMA channel.

3-1-4 - the motherboard is faulty.

3-2-4 - keyboard controller error.

3-3-4 - video memory testing error.

4-2-1 - system timer error.

4-2-3 - line error A20. The keyboard controller is faulty.

4-2-4 - error when working in protected mode. The CPU may be faulty.

4-3-1 - error when testing RAM.

4-3-4 - real time clock error.

4-4-1 - Serial port testing error. The error may be caused by a device using this port.

4-4-2 - error when testing the parallel port. The error may be caused by a device using this port.