@cyberS

Firmware update

http://www.bplan-gmbh.de/news/update05042004_en.html

Check MD5 checksum before flashing.

Bplan also has a newer firmware than this but only given to those with newer revision Peg2 board.
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=5651&forum=11#55059

Newer firmware may not help but it is the first thing to try. After which, you may have to change to a different Radeon model.