Originally Posted by Jstn7477
If the computer is locking up hard after about a minute of gaming, might be a hardware issue like overheating. Is the computer free of dust? What brand and wattage power supply does it have? Have you monitored temperatures? I would install HWMonitor and take a screenshot of it with your temps. Also, maybe run the game for 30 seconds (or however long it takes just before it crashes) with HWMonitor running to see what your temps get up to.
MW Monitor file attached the psu is FSP Group Fortron /Source
model fsp350-60MDN 50-60hz
DC output 350w
will try to monitor temps just before it crashes