The computer does not turn on: the problem is in the power supply
All PC malfunctions falling under the “computer does not turn on” category boil down to one single problem: it is impossible to download any of the known operating systems to the computer, including the MS-DOS boot disk and the secure MS Windows product. The “symptoms” of this problem are as follows:
the monitor remains dark;
PC does not respond to user actions;
after trying to turn on the PC, it screams frighteningly or reports an error.
If you are familiar with all of the above, then it is entirely possible that the problem lies in the power Continue reading
PC system unit: device and the role of the motherboard
System unit: internal content
The main component of any computer is thePC system unit, since it is in it that all the important elements and nodes are located, due to which the PC is able to fully function. The system unit is a metal box (case), “stuffed” with certain content. In particular, the system contains:
electronic circuits that control the operation of the PC (RAM, or OP, processor, motherboard, device controllers, and so on); Continue reading
What to do if the keyboard does not work on the computer
Why the computer keyboard does not work
Each computer user may have a keyboard problem, and in this case, you need to find the answer to the question: why the computer keyboard does not work and how to fix it. There are many different reasons that cause the keyboard to malfunction, but all of them can be divided into two categories: software reasons and hardware reasons. In simpler terms, either the keyboard itself is faulty, or the problem is caused by a failure in the operating system settings. Consider the most common “symptoms” of a problem. Continue reading
Why slows down video on a computer
Most often, malfunctions in the operating systems of Windows XP, Windows 7, Windows 8 are the result of hardware violations or software failures. The most common problem that users face is incorrect display and slowdown when playing videos. In this article we will talk about this problem and find out why the video slows down on the computer.
This is manifested in fading and jerking, and often extraneous “artifacts” appear on the screen. Sound in this case can be ahead of the picture or vice versa late. This problem is observed regardless of the quality of the video being played, whether it be HD or the simplest and most common SD quality format. Continue reading
Hard Drive Problems: Causes and Solutions
The hard drive is designed for long-term storage of files. Problems with a hard drive can lead not only to unstable computer operation, but also to the loss of important and sometimes irreplaceable information.
One of the causes of a HDD malfunction is natural aging. Like any mechanical device, a hard disk has a certain resource of work. For example, discs manufactured by Seagate can withstand up to 50,000 on and off cycles.
Hard drive failures can occur due to overheating. HDD temperature should not exceed 55 degrees. You can check it using special utilities. For example, the AIDA program. If the temperature of the hard drive is higher, additional cooling must be installed. In this case, keep in mind that low temperature is no less dangerous. It should not be lower than 20 degrees. Continue reading
