Make sure you have all relevant drivers(chipset, GPU, etc.) installed onto your PC. Check your BIOS and update it if there is a more recent version. Could be stability issue due to this. If you still have issues after this I would reseat everything in your PC(RAM, CPU, GPU, PSU connections) and make sure none of the pins are bent and if you have a multi meter try running a continuity test on the cables if possible. Other possibilities are your VRAMS on the GPU could be overheating causing the GPU to crash I know some manufactures don't install proper cooling, if this is the case then you will need to install thermal pads onto the VRAM(assuming this is possible). Had to do this w/ my GTX 1070 and my R9 390 before it as I went for cheap options and the low end manufactures tend to scimp on this kind of stuff.
If none the above works, you could have a bad CPU(bent pins?), RAM, PSU, or even motherboard. This can be hard to tell until you begin swapping components out.