Can’t Turn On Computer What To Do

Can't Turn On Computer What To Do

Even the most cautious users will one day still have to enter the computer’s base system on their own. To be afraid, to do something wrong. this is normal, which cannot be said about the manifestation of a backlash. the frivolity of newcomers with impatience driven to experience the microsystem in practice. However, both some and other users may have a question: “The computer does not enter the BIOS: what to do,” even when the “same” service key for invoking the base microsystem of the computing device is used to enter. It will be interesting to everyone, and even to you an advanced user!

Introductory Theory

Let’s leave a sad story about what BIOS is and why it is needed at all. You need to know one thing. the BIOS, this is not the place where you can thoughtlessly conduct experiments. Before you change any parameter or make a certain change in the operation of the microsystem, you need to understand that the result may turn out to be deplorably unexpected. Therefore, turn on the brain and get down to business.

Energy “CMOS trouble”. the battery has run out

The person in charge is smiling. Although it is not a fact that when the situation “The computer does not enter BIOS”, a knowledgeable user immediately draws attention to the battery that keeps the CMOS memory chip, so to speak, in good shape.

Sometimes an advanced computer technician goes in a roundabout way. trying to flash BIOS or exposing the system to a kind of software “shock therapy”, loading various DOS utilities and trying to revive the “mother instinct” of the control system load.

In fact, the first thing to do when the problem we are considering is to replace the CMOS battery and manipulate the BIOS reset to the default values.

Where is the “main” battery located and how to reset the BIOS?

The location of the battery may depend on the modification of the computing device, its type and other design features of the device. If we talk about laptops, then often access to the battery is incredibly difficult, since the battery is often hidden deep in the bowels of a compact device. However, referring to the material of the article, which is here , You will be able to reset BIOS settings without carrying out the difficult process of dismantling the laptop case frame.

In the case of stationary computers, everything is much simpler. disconnect the power cable from the system unit, remove the protective cover and without much stress, immediately find a large “tablet” type battery. Naturally, it is necessary to dismantle it and before putting a workable battery in its place, close the contacts of the battery socket with any metal object (static, you know!). After that, proceed to the “reset user settings” operation.

The mechanical method. closing special connectors with a jumper or clicking on the “Clear” button

Some manufacturers supply their motherboards with a special button, clicking on which allows you to clear the CMOS memory and return the BIOS settings to, so to speak, the original state. factory. However, most motherboards are equipped with a more ascetic reset mechanism. three contact breakers, the location of which can easily be calculated by the “CLR CMOS” marking.

So, in order (by default we de-energized the computing device and removed the protective cover):

  • Typically, the pin reset mechanism is in close proximity to the CMOS battery. However, in the photo below, the jumper is located elsewhere on the board.
  • The working position of the jumper is “1-2”. move the contactor one position forward / backward, in accordance with the markings printed on the motherboard. Regarding the graphic example (above the figure). this is the position “2-3”.
  • Wait a couple of minutes and install a new battery in the battery connector.
  • If the motherboard is equipped with a special button, activate it.
  • Close the cover and connect the power cable to the system unit.
  • Turn on the computer.

If everything went well, which is called “Hurray,” then pressing the “necessary” button will lead you to the interface of the basic settings, no. we continue to search for the reason.

Keyboard “passions”, or Why can not I go into the BIOS of a computer?

Sometimes, especially with regard to portable electronics, the culprit of “uncontrollability” is the keyboard module itself. Make sure that not one of the keys is stuck, that is, it is not in a closed (pressed) state.

Perhaps some kind of adverse incident will come to mind that happened the day before. a spilled cup of coffee, for example.

In any case, it’s worth trying the option “connecting an external keyboard via a USB connector”.

If the prerequisites turned out to be correct. you need to replace the keyboard module. For desktop computers, the most acceptable verification scheme is to connect a known-good keyboard to the PS / 2 connector.

A difficult case. “hard” problems

The inability of the computer BIOS to start the system or to complete the full initialization process can be caused by a malfunction of some hardware component of the computer. Most often, the reason lies in the incapacity of the hard drive. By the way, do not neglect the importance of (issued by the BIOS system) sound signals. You can find out more about beep codes. here . This kind of knowledge greatly simplifies the process of finding a specific fault.

It is not uncommon for a favorable boot script to violate a malfunction of the front connection panel, to which external audio and other peripheral devices are connected. Try disconnecting the connection cable from the external controller from the motherboard.

Check if the “computer does not enter BIOS” problem has been fixed, if not, disconnect the hard drive and restart the computer. In the end, if possible, experiment with RAM slots. check their performance, so to speak, by alternating connection. All of the above also applies to laptops. Perhaps information from this article you will be most welcome.

In addition to the above

So, with the basic methods of eliminating the reasons when the computer does not enter BIOS, you, dear reader, have familiarized yourself. We can assure you that the described troubleshooting algorithm is the most optimal. However, if your BIOS simply flew away, then you still can not do without flashing the CMOS chip (see the article, which is located here ) Safe repair to you!