Graphics card stopped receiving power from my pc

[WhiteWolfDae]

I was using my computer yesterday when all of a sudden my monitor goes black but my sound etc is still playing so I can move my monitor into the integrated graphics ports and then the display comes back. I then look in my PC and see none of the fans on my graphics card are running and it is not receiving any power and I believe everything is still connected correctly.
Specs:
HD-256-SE Seagate Barracuda 3TB 7200RPM SATA 6Gb/s 64MB Cache -
OEM (ST3000DM001) HDD
HD-167-SA Samsung 120GB SSD 840 EVO SATA 6Gb/s Basic -
(MZ-7TE120BW)
GX-132-GI Gigabyte Radeon R9 290X OC WindForce 4096MB GDDR5
PCI-Express Graphics Card (GV-R929XOC-4GD)
MY-178-KS Kingston HyperX 16GB (2x8GB) PC3-14900C10 1866MHz Dual
Channel Kit - Black/Red (HX18C10BRK2/16-OC)
CP-541-IN Intel Core i7-4790K 4.00GHz (Devil's Canyon) Socket LGA1150
Processor - OEM
CA-070-AE Aerocool V3X Advance Black Edition Midi-Tower - Black
SW-127-MS Microsoft Windows 7 Home Premium SP1 64-Bit - OEM
(GFC-02733)
BU-000-XX OcUK Standard System Warranty - 3 Year (24 Month C&R + 12
Month Labour)
XX-004-OP FAST TRACK SYSTEMS - Dispatched within 4 working days!
XX-048-XX No Security Software
MB-491-GI Gigabyte Z97X-Gaming 7 Intel Z97 (Socket 1150) DDR3 ATX
Motherboard
CA-003-SF SuperFlower Golden Green HX 550W "80 Plus Gold" Power Supply
- Black
CA-002-GE OcUK Value AT/ATX "Kettle Plug" 2 Meter Mains Cable
FS-202-OE OcUK Logo Rectangle Gel Case Badge - Black
HS-001-RT Raijintek Themis Direct Contact CPU Cooler
CD-003-OK OcUK 24x DVD±RW SATA ReWriter (Black) - OEM

 

[hang-the-9]

First step, test the video card in another system, test another card in yours with the same power draw. You can try resetting the BIOS first before swapping cards around. If you don't have any spare hardware, contact the video card vendor for warranty support.