I bought a new U2715H monitor and a new Alienware x51 R3 desktop. However, every day I start the computer, it always crashed when the screen shows Alienware logo or shows the Win10 welcome screen. I have to restart it again immediately, the computer start normally. Every day I need to start the computer twice. I considered the problem was from my desktop, I requested to exchange it. However, I exchanged twice, all of them have same problem. Until yesterday, I changed another ASUS monitor to connect the X51, the computer can start successfully by one time. Therefore ,I consider that the problem is from the monitors.
I tried using HDMI and mDP to connect the monitors and the X51. All of them have the problem. I tested my desktop, nothing wrong with the hardware. What can I do for the problem?