John

Okay, go to Global Wattman and hit "Reset" and then reinstall the drivers.

I guess power efficiency is not your issue then. Are you using separate 8 Pin power connectors or are you using the same one? Use separate ones if possible. If it's not that then you have a faulty power input and you might need to get a new riser. Reset any overclock settings if you have any and reinstall your drivers. I think it's safe to assume you haven't overclocked but go to Global Wattman and press "Reset" and then reinstall the drivers.

79 C is fine for your GPU. It should max out at 85 C so it's fine. Power efficiency should be located here :

Power savings should be off. Open up the AMD Radeon Drivers and press on the "Gaming" tab. Click "Global Settings" and then hit "Reset" just to make sure that you don't have any settings that are causing this. Turn off Power Efficiency while you are at it. After that press on the Global Wattman tab and that shows you your current fan speed, frequency, and temperature. Your temperature should be peaking around 80 to 85 degrees Celsius. If you want to open the overlay ingame you can press Ctrl + Shift + O, I believe that is the default keybinding. Let me know if that fixes anything. If that isn't the case, then it might be your RAM.

Is your graphics card on power savings mode? Is it overheating? Open up Wattman in the AMD drivers and reset your settings.

Top 7: $uicideboy$ - I Want To Die in New Orleans A$AP Rocky - TE$TING Kids See Ghosts - Kids See Ghosts Kanye West - ye Flatbush Zombies - Vacation in Hell Curren$y, Freddie Gibbs, and The Alchemist - Fetti Mac Miller - Swimming Honorable mentions: BONES - TheManInTheRadiator Action Bronson - White Bronco Amine - ONEPOINTFIVE Freddie Gibbs - Freddie Lupe Fiasco - DROGAS WAVE Favorite song of the year? Probably Ghost Town, Reborn, or A$AP Forever. Also, shameless last.fm plug. You guys should start using it.

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The introduction of base building really gives it a purpose. It's been great ever since they switched over to a more Arma 3 like game engine.