Hello! Few days ago i have upgraded my 17' monitor to Dell U2415 and i've got a problem: when I turn off my PC it restarts exactly, when "power safe mode" splash screen appears.
Asus B85-Plus, i5-4690, 16 gb ram, Gigabyte GTX960 4 gb, Win 7Pro x64 on 120 Gb SSD
power supply: RS-600-PCAR, APC Back-UPS CS 650 VA
Old monitor was connected by DVI - no problem, new Dell i tryed to connect by mDP-DP, DP-DP - problem in bouth cases.
PowerChute PE shows lower energy usage by U2415 (~100 W) than old monitor (~120 W)
How can I solve this "auto restart" problem?