computer keeps crashing for no reason

Quincy_3

Commendable
Jun 30, 2016
11
0
1,510
Hello everyone,
About 6-8 months ago i built my own pc for the first time and havnt had any issues except for some recent ones. originally i used to only run one monitor via VGA and once i got some money in my pocket i upgraded my set up. Now i run two monitors, one VGA and one HDMI. Whenever my computer sits idle it wont crash at all, but for example, when i run google search on one screen (full screen) and have something else on the other the whole background will move up and down quickly (which usually indicates its going to crash). ive gone through many possible issues and fixed any potentials with zero resolve. can anyone help me?
MSI motherboard H81M-E34
Graphics-Gigabyte Radeon r7 250x
two 21in monitors
Intel Pentium Processor G3258
500 watt power supply
1TB memory
and one 8gb ram card