The computer boots completely normal without the Deathadder plugged in and works fine, when I plug it in later (but of course this is not an optimal solution).
I tried so far to...
- ...use different USB ports
- ...update the BIOS (even changed CMOS-battery!)
- ...update the driver of the mouse
- ...reinstall Synapse 3 (clean installation)
- ...use another mouse (problem does not occur with my old logitech mouse)
- ...tried the Deathadder on my laptop (there it works completely fine)
- ...tried to change a few BIOS settings.
All of that was without any success. The computer will not start with the mouse connected (also not able to access the BIOS with mouse connected or to use the BIOS when plugged in later).
Would be a pain to always unplug the mouse when I start the PC, because otherwise I am happy with its performance.
Maybe someone has experienced similar problems and can provide a solution?