If you have a squeak when you turn on the laptop, the reasons for this may be different. We will try to figure them out. Computer equipment is often subjected to various breakdowns. The fact is that a laptop consists of a large number of subsystems that are interconnected, but their elements are not heavy-duty and durable.
A task
If the laptop does not load, it is important to determine the cause of this situation. Hardware developers have foreseen this. A special mechanism was created to determine the cause of the breakdown and localize it. It just lies in the special signals issued by the computer. So, if you hear any sounds from the laptop, this is good news, indicating that the device is inconclusive. If the laptop does not turn on, it is too early to panic. Almost any damage can be fixed. Certain malfunctions can be fixed on their own, for others it will be necessary to involve a wizard.Input device
If you have a squeak when you turn on the laptop, the most common reason for this is the key sinking. It is caused by clogging or spilled liquid. As a result, contact closure occurs. It can be considered a good option if moisture remains exclusively on the keyboard without penetrating the case. In the latter case, the problems that have arisen can be much more serious.
Temperature
If the laptop does not boot, the reason for this may lie in the cooling system. Its clogging with debris or dust, as well as mechanical damage caused by shock when the device falls, cause the CPU to overheat. If the cooling system is used for heat removal from the graphics card, it is also capable of deteriorating.RAM
If you have a squeak when you turn on the laptop, the reason for this may lie in the damage to RAM. As a rule, in such cases we are talking about the violation of the contact between RAM and the motherboard. The less common reasons for the appearance of extraneous sounds when turned on include incorrect settings in the BIOS, failure of the motherboard.What does the signal mean?
If you squeak when you turn on the laptop, there may be several reasons. The sound comes from a small tweeter. It is located on the motherboard. He is called a speaker. The device looks like a small barrel. Its main purpose is fault reporting. There is information in the sound that describes the nature of the breakdown. If you know the BIOS manufacturer, as well as determine the tone of the squeak and the duration, it is easy to find out which component needs repair. To find out about the BIOS, you can use the documents for the device.
Display
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, , , . , , , . . , , . . , . , , . 60 % – . . 10 % - . . 10 % south bridge. Another 20% are problems of a different kind. To find and eliminate them, device diagnostics is required. Most often, the matrix of the screen remains operational. Its damage is possible due to mechanical damage or liquid splashing on the screen.
Varieties of signal
We figured out the display, and now back to the sounds made by the laptop. Each signal carries information about the cause of the malfunction. Sound decoding may vary depending on the BIOS manufacturer. Let's consider them in order. The quotation mark will indicate the sequence of signals.DELL. «1-2» . «1-2-2-3» BIOS. «1-3-1-1», DRAM. «1-3-1-3». «1-3-3-1» . «1-3-4-1», «1-3-4-3» «1-4-1-1» , .
AMI BIOS. 1 . 3 , . . 1 1 . 8 , . 1 8 , , . . 10 CMOS. . .
1 4 . , , . 1 3 . EGA-VGA. 2 . , . 4 . . 11 . . 1 2 . Mono-CGA.