I have an Odroid c2 as server with a chromecast (with Google TV) as viewer with Kodi. For videos it is stable. It can play 1080p x264 and x265.
The odroid c2 server runs DietPi (based on Debian).
For games I have no idea… If your interested in odroid, do not pick up the c2 but the successor the c4.





Can your PSU handle the hardware? Calculate all hardware max watt or check one of those online calculator (search for PSU calculator)
Check your memory by doing a memory test.
No overheating problems?