How to reset bios to factory settings. Restoring BIOS settings to factory defaults. Reset BIOS settings
Every computer wizard involved in setting up and repairing a PC has repeatedly encountered the fact that the computer starts to behave inappropriately or does not boot at all, giving out various errors and frantically beeping the system speaker. In such a situation, it is often necessary to resort to the least impact - resetting the BIOS, or rather, even resetting the CMOS parameters. Any professional specialist knows at least 3 ways to reset BIOS settings to factory settings.
Method one. Program.
Very often I have to turn to this method when the computer starts to “pin” and “flatten”, the OS starts to swear different mistakes and hang. It helps to return the parameters to the factory settings, that is, to default. To do this, when you turn on your computer or laptop, press several times (to be sure) on the button Delete. For laptops, the F2 button is used for this. So we get into the holy of holies, into the BIOS settings. There you need to search for sections for something like Load Defaults. For example, I will give the two most common BIOS. The Award-Phoenix BIOS has two items in the main menu - "Load Fail-Safe Defaults" and "Load Optimized Defaults":
In fact, they are almost identical. I usually choose "Optimized Defaults". In the AMI-BIOS, in the "Save and Exit" section, there is an item "Load Setup Defaults":
We select it and we get a warning window in which we must select "Yes". After the reboot, we get a virgin clean CMOS =).
Method two. Jumper (Jumper)
Each motherboard has a special jumper responsible for resetting the BIOS to factory settings. It is usually signed by CLR_CMOS or CCMOS. It is usually located somewhere near the battery on system board. Here he is:
You just need to pull the jumper from a pair of contacts and move one contact to the side. That is, he bridged the first and second contacts, but you need to switch it so that it closes the second and third.
Sometimes you may encounter something like this:
Here you need to bridge the contacts with a screwdriver or something similar.
After the necessary contacts are closed, turn on the computer, wait a couple of minutes and turn it off again. We return the jumper to its place and turn on the device.
BIOS reset!
Available to the user a large number of various settings that relate to the operation of the computer. Therefore, if they are used inaccurately, the computer may start to work unstable or not start at all. In this case, you need to reset the BIOS to factory settings. In this article, we will tell you how to reset BIOS settings to the factory and thereby correct unstable job computer.
Reset BIOS settings via BIOS Setup
The easiest and safest way to reset BIOS settings to factory settings is to use special option in the BIOS settings themselves, that is, in BIOS Setup. In any BIOS version there is always an option that allows you to restore the factory settings, you just need to activate it, confirm the reset and exit the settings with saving the changes. After rebooting the computer, it will start working already at the factory settings.
Using this method, you do not risk damaging your computer, so it should be used whenever possible. The rest of the reset options are associated with some risk and if they are performed incorrectly, something can be damaged. Therefore, they are only for emergency cases when the computer does not turn on.
Therefore, if your computer boots and you have the opportunity to enter the BIOS, then you must reset the settings through the BIOS Setup interface. To do this, find the menu item that resets the BIOS settings to default. Usually such an item is located in the section " Exit"(Exit) and is called" Load Setup Defaults"(Load default settings).
For example, in the case of PhoenixBIOS, you need to open the section " Exit"And select" Load Setup Defaults"
And then exit the BIOS with saving the settings by selecting the item " Exit Saving Changes"And clicking on the button" Yes".
Some BIOS versions have two options to restore default settings. For example, in the screenshot below, you can select " Load Fail-Safe Defaults" and " Load Optimized Defaults". Both of these options work in the same way, they load the default settings. Only the first option loads a more secure profile that the computer should work with anyway, while the second option loads a profile with optimal settings.
On modern motherboards with the UEFI BIOS there is also always an option to return the default settings. But, due to the bright and non-standard interface, it can be more difficult to find it. For example, the screenshot below shows UEFI from ASUS. Here to return to default settings you need to click on the button " Default"At the bottom of the screen or press F5. Then you need to exit using the option " Save & Exit"(Save and exit) or press F10.
Also on this board from Asus, you can first go into advanced settings by clicking on " Advanced Mode"Or pressing F7. After that, you will need to go to the "Exit" section (Exit), activate the option " Load Optimized Defaults"And exit using the option" Save Changes & Reset».
There are many different versions of BIOS and UEFI, so your interface will be different. But, in general, the reset procedure is always very similar and should not cause you any problems.
Resetting BIOS settings using a jumper
If the computer does not boot or you do not have access to the BIOS, then you can reset the settings using a special jumper on the motherboard. Such a jumper is on any board, but it can be located in different places and can be signed differently. For example, it might be called CLRTC, CLR_CMOS, JCMOS, RESET CMOS, CCMOS, CONFIG, BIOS CONFIG etc. Therefore, if you do not have sufficient experience, then it is better to first read the instructions from the motherboard. Such an instruction should come with the board, and it can also be downloaded for free on the board page from the manufacturer's official website.
In order to reset the BIOS settings using a jumper, you must turn off the computer and turn it off completely. Then remove the side cover system block and find the jumper on the motherboard. To reset the jumper, you need to move it to another position for a few seconds and then return it back. If there are only 2 contacts for reset and there is no jumper, then these contacts just need to be closed for a few seconds.
In addition, some expensive ones may have a special button for. This button can be located directly on the board or can be placed on back side computer, on the panel with ports.
If there is such a button to reset the settings, it will be enough just to turn off the computer and press it for a few seconds.
Resetting BIOS settings with a battery
If you are not sure that you have found the right jumper, then you can simply disconnect the battery on the motherboard. By disabling it for just a few seconds, you will reset the settings and return the BIOS to factory settings. This option is quite simple and works in any case.
In order to disconnect the battery, as in the previous method, you must first turn off the computer and turn it off completely. After that, remove the side cover and find the battery on the motherboard. This is a small CR2032 type battery, as a rule, it is located closer to the bottom of it.
Next, you need to remove the battery with a screwdriver, wait a few seconds and install it back. This must be done as carefully as possible in order not to damage the motherboard. If the screwdriver comes off the battery, then you can knock off small components on the board, which will inevitably result in the need for repair.
The abbreviation CMOS stands for Complementary Metal-Oxide-Semiconductor. This is a tiny storage device that is used to store BIOS or UEFI settings. These settings are responsible for how your computer will boot, various low-level settings for the processor, memory, buses, and overclocking.
You may need to reset the CMOS memory after an unsuccessful attempt to overclock the computer, or when the computer simply does not boot as a result of something you did wrong in the BIOS settings. Resetting the CMOS will simply return all settings to their defaults and everything will work. If you built your own computer, then you know exactly how it is done, but for people who bought their own device, such a task can be difficult. In this article, we will look at how to reset the computer's CMOS memory.
HOW DOES CMOS MEMORY WORK?
The CMOS memory that stores the BIOS settings is volatile. It is powered by a special battery built into the computer motherboard. This was not done in vain. The default BIOS settings are stored in non-volatile memory and are never changed. All changes made by the user are stored in volatile memory.
The correctness of these settings is very important, because they determine whether the computer will boot or not, and as a result, you can change them or not. And if the user made any mistake in the settings, it is enough just to de-energize the memory and the settings will return to the default value. Everything is simple. And now let's see how to do it.
HOW TO RESET THE CMOS MEMORY VIA RESET?
If your computer case has a Reset button, then you can reset the CMOS settings using it. It can be used not only to restart the computer, but also to do so. Just follow these steps:
- Turn off your computer;
- Unplug the computer from the mains, you can unplug the cord from the power outlet or power supply connector on the back of the computer;
- Find the Reset or Clear button near the Power button on the front of the computer;
- Press and hold the button for five to ten seconds, then release. If the button is very small, you will have to use a needle or pen;
- Connect your computer to the network and start.
Basically, that's all. This set of actions is enough to reset the settings in most cases. You can also start the BIOS by pressing Del or F2 before starting the boot and select the option Load Optimized Defaults this would be ideal.
RESET CMOS BUTTON ON THE MOTHERBOARD
Most modern motherboards have a dedicated CMOS reset button. It can be accessed after you open the computer case cover. It may be called CLR, CLEAR or RESET. The procedure is almost the same:
- Turn off your computer;
- Press the power button several times to discharge the capacitors on the motherboard;
- Disconnect the computer from the mains or remove the power supply cable;
- Find the button on the motherboard. If you can't find it, see the manual for your board model. IN different models they are located differently;
- Hold down the button and do not release for five ten seconds;
RESETTING CMOS BY REMOVING THE BATTERY
If your board does not have Reset buttons, and this situation very often happens with laptops, then you just have to remove the CMOS battery. This battery powers the memory when the computer is not connected to the network. Removing the battery is equivalent to forcibly clearing the memory. How to reset cmos on a laptop:
- Turn off your computer;
- Disconnect the computer from the mains;
- Press the power button several times to discharge the capacitors;
- Find the battery on the motherboard. Usually it is a coin-sized CR2032 battery. You can find it near the PCI Express slots;
- Remove the battery, you may need to press a sharp object on the retaining element or pull it out from under the latch. Act carefully, do not break the structure;
- Wait a few minutes and then put the battery back in the same way as it was installed before;
- Plug in the power and turn on the computer.
RESET CMOS USING THE JUMPER
Among other things, the motherboard has a special jumper with which you can reset the settings:
- Turn off your computer;
- Unplug it from power;
- Press the power button several times;
- Open the computer case and locate the CMOS reset pins on the board. Usually, these are two or three pins put together and signed with CLEAR CMOS or CLRPWD;
- For a three-pin configuration, move the plastic jumper so that the center pin is shorted to the pin it was previously disconnected from. With two-pin, simply disconnect the contacts.
- Wait a few minutes and then return the switch to the position it was in before;
- Turn on your computer.
CONCLUSIONS
In this article, we looked at how to reset cmos on the motherboard, as well as using reset buttons on the hull. If you forget your password or mess up your BIOS configuration, it's easy enough to restore everything. I hope this information was helpful to you. If you have any questions, ask in the comments!
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Greetings!
BOIS stores information and manages the underlying hardware that is installed on your computer. The BIOS is also responsible for the correctness of the time displayed in the operating system.
Why reset BIOS settings
You may need to reset the BIOS settings to default in the following situations:
1) You have installed any additional hardware on your PC, but it refuses to be detected by the operating system, or there are problems with its operation: the hardware disappears from the system from time to time, the system freezes, etc.
2) In an attempt to "overclock" your computer, you have set options in the BIOS that are not actually supported by the hardware installed in your PC. As a result, the computer did not turn on at all.
3) You have updated the BIOS, and in this situation it is recommended to perform a factory reset.
4) There was a need to reset the password that is requested when the computer is turned on (before the actual boot of the installed operating system).
This material will describe in detail and demonstrate with specific examples how to reset BIOS settings to default (default) on a personal computer and laptop. We will consider resetting the settings both from the BIOS itself and by directly switching the contact / battery on the computer's motherboard, which powers the BIOS chip and does not allow you to "forget" the saved settings.
Reset BIOS through the corresponding menu item
The easiest and most logical way to reset BIOS settings is to use the menu item that is available in the BIOS settings itself.
It should be noted that this item is available in almost all versions and variants of BIOSes, however, its name and location may vary.
To guide you, I will show you specific example the location of this item in a typical BOIS.
To enter the BIOS settings, you must straightaway after turning on (even before the operating system itself boots), press the key several times Del on the keyboard of a personal (stationary) computer, or another key if it is a laptop. The most commonly used key to enter the BIOS on laptops is F2.
In the once popular and widely used BIOS version, this item was located in the main menu:
Load Fail-Safe Defaults- Reset BIOS options and settings to default. In this mode, all computer components will undergo a complete test. It is recommended to resort to it before installing the operating system and if you suspect that some component is intermittent, for example, a die random access memory.
Load Optimized Defaults- if you select this item, then the BIOS settings and parameters will also be reset, but with an emphasis on optimization. In this mode, some components will pass a “stripped down” test, which will make the computer boot up faster.
If we talk about laptops, then everything is somewhat more complicated. In them, the BIOS menu interface can be heavily redesigned and stylized under the company's brand.
For example, in an HP laptop, the BIOS looks like this. Here, the settings are reset by selecting the item Restore Defaults.
The name of the item that resets the BIOS settings may be different, namely: Load Setup Defaults, Load Optimized Defaults, Reset to Default, factory default, Setup Defaults and consonant. The location may also differ, most often this item is in the tab exit.
Based on the foregoing, you will need to find this item in your BIOS version (including UEFI) and click on it. Navigation in the BIOS is carried out with the keys arrows, and key selection Enter.
After resetting the settings, the computer will either restart or you will need to exit the BIOS with the settings that were reset to the default.
If you do not have access to the BIOS due to set password, or the computer refuses to turn on at all after "experiments" with the BIOS settings (as an option, in an attempt to overclock the computer), then it will suit you next way reset settings.
Reset BIOS via jumper on motherboard
Most computer motherboards have jumpers that physically consist of pins and, if necessary, are shorted using nozzles (jumpers). Closing/opening certain jumpers configures certain PC parameters.
By closing the jumper, which refers to the BIOS, the settings will be reset to the default option.
To reset the BIOS using a jumper, do the following:
Unplug your computer from the electrical outlet by unplugging the cord from the outlet. After that, you need to arm yourself with a screwdriver and unscrew the screws that hold the side cover of the computer.
Having gained access inside, you will need to find a jumper on the motherboard located there, which is responsible for resetting BIOS settings and parameters. This jumper in most cases is located near the battery, which powers the BIOS and prevents the settings from being forgotten.
As a guide, the jumper is often signed accordingly: BIOS RESET, CMOS RESET, CLEAR CMOS, and the text can be abbreviated, for example, CLR_CMOS.
The jumper itself can consist of two or three pins. If there are three pins, then move the jumper to the next pair of pins, and if there are two, then you should borrow the jumper from another place on the motherboard. Just before borrowing a jumpik, remember, or better yet, take a picture of its original position.
After that, you need to hold the power button for about 10 seconds. The computer, of course, will not turn on. completely de-energized, just this procedure is necessary to reset the BIOS settings.
Having done this, return the jumpik to its original position, and then put and screw the computer cover back on, connect the power.
Done, the BIOS has been reset. Now you can reconfigure the BIOS settings, or use the ones that were set by default.
BIOS reset method with battery removal
The BIOS reset jumper is located next to the battery in most cases. This is due to the fact that the chip that stores the BIOS settings is not non-volatile. This battery just feeds the BIOS, allowing you to save the settings specified by the user, as well as maintain the built-in clock during the period when the computer is turned off.
After pulling the latch, carefully remove the battery for a few minutes, and then return it to its place - the BIOS settings and parameters will be reset.
It should be noted that in rare cases the battery is non-removable. Take this fact into account if you see that the battery is very firmly seated in the slot.
Summary
Now you know when it is worth resorting to resetting the BIOS, and how this can be done. The first method is universal, while the second and third are more suitable for stationary personal computers. Laptops also have a battery that powers the BIOS, but getting to it is often much more difficult.
If after reading the material you still have questions, then do not hesitate to state them in the comments.
BIOS is a program in the permanent memory of the motherboard, the main purpose of which is to store basic settings computer and preparing the device for operating system could start and take control of the computer.
The need to reset the BIOS for an ordinary user is very rare. The main reasons for which you need to reset the BIOS settings include:- Incorrect BIOS setting, due to which the computer does not boot, there is no way to enter the BIOS menu to cancel the settings made.
- Replacement of computer components (processor, RAM, video card), in which the current settings do not allow loading the operating system.
- IN Computer BIOS A password has been set that cannot be recovered.
- Complete reversal of all BIOS changes.
- go to the BIOS settings the next time you start the computer by pressing the "Del" or "F2" button;
- select "Reset to setup defaults";
- wait for the reset operation to finish.
- disconnect the computer from the network;
- open the case of the system unit;
- on the motherboard, find the BIOS reset connector;
- set the jumper to BIOS reset mode;
- return to original position.
- remove the BIOS battery from the motherboard;
- press the computer power button several times to discharge the capacitors, which can power the BIOS chip with residual current;
- replace the BIOS battery.
After the BIOS settings have been reset, a dialog menu will appear at boot prompting you to press F1 to enter the BIOS and further configure the settings, or F2 to automatically load the default settings.
