In the process, the computer sometimes there are various problems with the image on the monitor.
The problems may be in the program, and in hardware, for example, a video card overheating or malfunctioning drivers.
To solve the problems, various tests are carried out with the help of special programs.
Testing also performed to determine the overall system performance.
If the video card is made on ATI chip orNVIDIA, then it is possible to carry out the test using ATITool program. This program has several advantages over its competitors, except that it's free, it allows you to check the computational capacity of the video card in high temperatures, it is stronger than any heating demanding to program the system.
Download and install ATITool. By running the program, you will see information about the current state of the video card. Click the Show 3D view.
This opens a window 3d render with a rotating cube,in this case, will be given information about the current and average FPS rate. The program should operate in this mode for 15 minutes. During testing care should be taken processor temperature, if the rate exceeds 85 degrees, then the test should be discontinued, the temperature considered normal in the range 65 - 75 degrees. Its increase is likely, says a dried thermal grease under the cooler. If you see a lot of yellow spots, then the graphics card is overheating or power supply has insufficient capacity. If during the test the temperature rises above the critical level, and the number of spots is not more than 3 - 5 pieces, then the video card is in good condition.
Click Scan for Artifacts button at the same time willthe next test is started with the same rotating cube. This test detects the number of errors in the video. If during the time of the meeting (10 - 15 minutes), the error will not be detected, then the graphics card is working properly.