Hi, everybody I buyed PE4C V2.1 with PM100C, and then I plug in vga card to PE4C, and then plug in power supply. power supply turn status on and then 2 green led. and turn vga card fan. and then laptop power off and 1 red light led. and then laptop power on but laptop black screen, and power supply status off, just after laptop is boot and open. Laptop is Acer Aspire 5733 RAM 4 GB iGPU intel HD VGA Card is Sapphire R9 285 Power Supply is crossair 450 watt RAM : 4GB When Laptop status on, If I powersuppyle status turn on, again 2 green led and turn vga card fan, but windows 7 or windows 8.1 not see vga card. add remove hardware window search new hardware but not find. and then I change switch 2 (500ms) laptop is open, PE4C 2 green led and turn vga card fan but not see windows 8.1 my vga card, I do not see a PCIe hardware list. What is the problem? Help me please