I just bought two piece of XR5 and I have some problems with. The system configuration is: celeron@2667Mhz, 512ddr2 Twinmos, MB: Gigabyte, RB11 Power Supply: ThermalTake 420W pure power, Mikrotik 2.9.45 and 3.0 rc! The problems is that the system reboots spontaneously. After I have read on this forum someone had a rb532 and fixed the problem with a power source of 48V! I changed the power settings from default to 22dB and it works just fine! I think that rb11 is the problem, I also tried to change rb11 with another and I also tried other computer systems but the problem was the same! Can anybody give me a advice?