I have a MSI 865PE Neo2-V mobo and a wireless Logitech combo (MX3000 laser). When I connect both keyboard and mouse to the 865PE through PS2 connectors it simply doesn't boot (black screen, nothing happens). If I connect only the keyboard, however, everything goes normally. I want to connect them via PS2 because I find this more stable and reliable than USB.
I think keyboard and mouse are OK because I used them for months with my old mobo and work fine with my laptop as well, and also I have known of people who have other MSI boards and have had very similar problems with the MX3000.
It took me a lot of time to find a wireless keyboard and mouse that I really liked and by no means I want to give up using them the way I've been doing it till now. Anyone can help?. I'd be very grateful.