In the life of any person, a moment may come when his faithful PC refuses to work more. This is not a cause for panic; in most cases, a simple computer diagnosis can solve the problem. Independently spend it will not be difficult.
The first bell about a system malfunction can be received immediately after turning on the computer. The motherboard should give a single
sound signal, which indicates the health of the system. If any malfunction is present, then there is a whole table of combinations of sound signals, which allows you to immediately establish the source of the problem. For example, 8 short beeps will indicate a malfunction of the video card, and 3 beeps will indicate a malfunction of
the memory module. Hearing uncharacteristic sounds from your system unit, you should not immediately bring it to a service center, you may just need to clean it from dust. A list of signals can be viewed on the Internet.
If the coolers on the system unit turned on, but the lights on it did not light up, no sound came out, and frightening blackness appeared on the monitor screen, then most likely you will have to change the motherboard.
If nothing happened after turning on the
system unit , then there are two possible options: either the power supply burned out, or your electric power was turned off. Replacing the power supply will not cause any special problems. This is a fairly simple process.
Computer diagnostics continues, if after turning on the system emitted one short signal, the BIOS read all the basic physical parameters, such as memory, the number of hard drives, etc., then you can be sure that everything is in order with the hardware.
Another possible cause of a PC failure is a problem in the disk system. If an inscription appears on the monitor like: “Non system disk or disk error,” then think several times before proceeding with the recovery. Incorrectly performed computer diagnostics can lead to the failure of the entire system as a whole, as well as to the loss of all personal data located on the hard drive.
First, you must enter the BIOS and check if the hard drive is detected. To enter immediately after the start of the download, press the "del" key. The BIOS structure is diverse, but the very first menu always shows all connected and involved storage media, current time and date. If the hard drive is listed there, then a simple computer diagnosis will not help here. You will need to use various applications that help you diagnose your computer. The program scans the disks and finds “bad” sectors in them, which are then restored.
If the system has booted, but the quality of its work does not suit, then the computer diagnostics will help in time. There are a huge variety of applications, such as Tun eUp Utilities or Norton Disk Doctor, which are able to quickly and accurately
check hard drives, system, registry and other areas for problems and errors. Modern programs that diagnose a computer can run in the
background and in most cases do not require user participation.
Summing up, it can be noted that not every malfunction in the PC should provoke a trip to the service center. Timely computer diagnostics will help you save your time and money.