I owe MSI Radeon HD 7870 2048MB R7870-2GD5T/OC, 3 pcs. I am experimenting with overclocking, and sometimes after rebooting I face the black screen. Currently I'm blaming it on overclocking. To avoid crashes at startup I left the default clock of cards (1050-1200) and turned off "Apply overclocking at system startup" option (MSI Afterburner 2.3.1, starting with Windows), but the problem of black screen remains. After one rebooting I noticed that miner which auto-starts after reboot gives me the hashrates of overclocked cards, although in Afterburner window all clocks were on default level. I ran GPU-Z, and it confirmed to me that cards were overclocked, and Afterburner is telling me the opposite (attached screenshot). After adjusting of clock slider in Afterburner and hitting "Apply" all clock really reset to default. But the fact is that after resetting and rebooting Afterburner keeps the clock rates on the level set before rebooting, while showing the incorrect information in its window. Can you please tell me how to make Afterburner reset all clocks to default level after reboot (normal or BSOD) and to show the correct information. Thank you.