I bought and installed a new Geforce GTX 780ti video card. After installing it and restarting my computer my monitor wouldn't display anything. I could still hear Windows 7 starting up through the speakers but my monitor remained black. I removed the video card and reconnected the cables back to the motherboard and everything worked fine. My motherboard is a Z87-D3HP.
My specs are
Case:Corsair Carbide Series 200R Compact ATX Case CC-9011023-WW
CPU:Intel Core i7-4770K Quad-Core Desktop Processor (3.5 GHz, 8 MB Cache, Intel HD graphics, BX80646I74770K)
Motherboard: Gigabyte Z87 LGA 1150 CrossFireX HDMI DVI ATX Motherboard (GA-Z87-D3HP)
Memory:Crucial Ballistix Sport XT 16GB Kit (8GBx2) DDR3 1600 MT/s (PC3-12800) CL9 at 1.5V UDIMM 240-Pin Memory Modules BLS2C8G3D169DS3
by Crucial
SSD:Samsung Electronics MZ-7PD128BW 840 Pro Series 2.5-Inch 128GB SATA 6Gbps Solid State Drive
SSD:Samsung Electronics 840 Pro Series 2.5-Inch 256 GB SATA 6GB/s Solid State Drive MZ-7PD256BW
by Samsung
HDD:Seagate NAS HDD 3TB SATA 6GB NCQ 64 MB Cache Bare Drive ST3000VN000
Optical Drive:Lite-On Super AllWrite 24X SATA DVD+/-RW Dual Layer Drive - Bulk - IHAS124-04 (Black)
Power Supply:Corsair CX Series 750 Watt ATX/EPS Modular 80 PLUS Bronze ATX12V/EPS12V 744 Power Supply CX750M
OS:Window 7 Home premeiumSP1 64bit
My specs are
Case:Corsair Carbide Series 200R Compact ATX Case CC-9011023-WW
CPU:Intel Core i7-4770K Quad-Core Desktop Processor (3.5 GHz, 8 MB Cache, Intel HD graphics, BX80646I74770K)
Motherboard: Gigabyte Z87 LGA 1150 CrossFireX HDMI DVI ATX Motherboard (GA-Z87-D3HP)
Memory:Crucial Ballistix Sport XT 16GB Kit (8GBx2) DDR3 1600 MT/s (PC3-12800) CL9 at 1.5V UDIMM 240-Pin Memory Modules BLS2C8G3D169DS3
by Crucial
SSD:Samsung Electronics MZ-7PD128BW 840 Pro Series 2.5-Inch 128GB SATA 6Gbps Solid State Drive
SSD:Samsung Electronics 840 Pro Series 2.5-Inch 256 GB SATA 6GB/s Solid State Drive MZ-7PD256BW
by Samsung
HDD:Seagate NAS HDD 3TB SATA 6GB NCQ 64 MB Cache Bare Drive ST3000VN000
Optical Drive:Lite-On Super AllWrite 24X SATA DVD+/-RW Dual Layer Drive - Bulk - IHAS124-04 (Black)
Power Supply:Corsair CX Series 750 Watt ATX/EPS Modular 80 PLUS Bronze ATX12V/EPS12V 744 Power Supply CX750M
OS:Window 7 Home premeiumSP1 64bit