"D1601 - Red LED On, shows critical temperature fault
D1602 - Red LED On, shows External power connector A was removed
D1603 - Red LED On, shows External power connector B was removed
D601 - Red LED On, shows critical Core power fault"
Sounds like the LED is just bust, I shouldn't worry.
Why are these specs not given by xfx, I searched a lot. Should I take it to the service center for the dead LED D601?
It is not flashing along with the others at startup or shutdown. Are you sure that it is dead, seeing the symptoms, and not any kind of problem? Is it because ati superior powerplay was disabled by editing its bios?