1, graphics driver version and video card is not compatible
Graphics driver version is very many, not the latest graphics driver is suitable for your graphics card, some old graphics instead of using the older version of the driver more stable, such a situation is recommended to download the display when the graphics driver, or to the official graphics card website to download the appropriate driver.
2, the graphics card itself has problems
Some graphics cards are not installed when the driver seems to be normal, and a gold drive on the installation of a flower screen, restart, blue screen and other phenomena, for graphics problems, we need professionals to repair, if necessary, replace the video card.
3, the choice of driving
It is recommended to install the driver with Microsoft Signature Authentication, which will be more compatible with the Win7 system.
4, some non-public version of the driver will automatically overclocking the graphics card
At this point if the video card itself is not good enough to run in the overclocking environment then there will be a constant reboot or video card overheating restart phenomenon.