I recently built a system for general use and added a RX 570 Radeon GPU to play DotA 2. I have a Ultra Wide QHD monitor and i was happy with the performance.
I got an option to upgrade my gpu to RX 580 for a minimal difference and i went ahead with the upgrade.
That’s when the problem started. While playing DotA2 the system would randomly restart … this takes away the fun part from the game.
I tried a million things but the thing which seems to have made a difference is I use MSI Aftershock to manually set the fan speed to 85% constant to keep the game from crashing. Now RX 580 is more than capable to run dota 2 smoothly so setting the high fan speed does not make sense and if the gpu is heating up it should ramp up the fans itself.
I am now suspecting this might be an issue related to the thermal paste on the gpu. I am tempted to take the card apart and re-apply the paste. Any recommendations?
what is the history of RX580 and what is the power rating of your PSU ?
what is the temp when it is crashing, you can use GPU-Z to log temp, fan speed, clocks , power consumption etc to a txt file and analyse it later. also, try setting fan to 100% and play the game for sometime while monitoring temp etc on GPU-Z or afterbuner. So you can confirm whether you need to reapply thermal paste