Although all manufacturers of computer components strive to make their products as reliable as possible, so that in the face of fierce competition, gain a foothold in the market, this is not always possible in full. The cause of periodically occurring malfunctions can be internal defects of microcircuits, poor-quality elemental base, flaws in logic circuits, etc.
Perhaps every computer owner knows the problems with the video card. If we analyze the percentage of calls to service centers, it becomes obvious that this kind of malfunction is almost a third. The problem with the video card can manifest itself in completely different ways. So, for example, an error in the GPU operation makes it impossible to launch three-dimensional applications, and damage to memory cells leads to stripes on the screen. Of course, to accurately determine the cause of the problem with the video card should be considered comprehensively.
Alas, laptop owners are also at risk. Problems with a laptop video card are as common as in full-fledged personal computers. In addition, a negative additional factor is added in laptops - the effect of high temperature.
A malfunction occurs as follows (one of the most common cases). After turning on the computer again, on the screen, in addition to the usual picture, extraneous stripes or dots are displayed. They are present both in the BIOS windows, and everywhere in the operating system. Look at the photo - on it we give an explanatory screenshot.
Problems with the video card - this is not a reason to panic. Sometimes the reason for their occurrence is commonplace. So, if extraneous stripes are displayed on the screen, you should turn off the computer's power, open the system unit cover and find the video card. This is a large board in which the wire from the monitor is connected. You must carefully inspect the corresponding connector on the motherboard and the sliding contacts of the video adapter. If the video card is loosely fixed in the connector, which is typical for a bolt-free connection (in some cases), it’s enough to accidentally slide the case slightly so that the hard “monitor-video” cable partially pulls the card out of the socket, breaking the electrical contact. We return the card to its place and fix it. Usually, performance is restored.
Also, problems with the graphics card may occur due to insufficient cooling.
productive graphics processor. In this case, the stripes appear after a while. It is required to remove the cooling system of the video adapter, clean it and replace the thermal grease.
The cause of the abnormal operation may be the chip blade (poor-quality BGA-soldering). Especially some of the video cards manufactured by NVidia have become famous for this. Worth mentioning is the infamous 9600GT. In this case, the so-called roasting can restore functionality.
In addition, a low-power power supply that does not produce the necessary current can also lead to stripes on the screen. It is useful to carefully examine the electronic elements soldered on the video card. A swollen capacitor may well lead to malfunctions.