Hello there, I am the Expert that will be helping you today. My name is damnor01.
Welcome to
Fixya.
Heat is an important factor. Your computer system is getting too hot, the culprit is more than likely the Central Processing Unit.
Clean your computer of all dust pay attention to the CPU cooler and install some fans in your computer system.
120mm fans are quieter than 80mm fans and they provide greater airflow. Install the biggest your chassis can support.
Also see my published guide entitled
How to install Graphics Drivers, Nvidia and AMD Radeon!!! as you may need to install the latest drivers for your graphics card.
You may also want to scan your computer for viruses as they are known to overload a computer system bringing it to it's knees.
Fixya offers such services!
Thanking kindly
damnor01