Graphics card turns off

[rubberjohny]

I have :
AMD Athlon X4 860K
Gigabyte GA-F2A68HM-DS2
XFX RADEON R7 260X
Elixir DDR3 8GB
Aerocool VX-450
Seagate 1TB SATA HDD
Those parts were bought few days ago, I assembled them, and tried to run it, but when I turn it on graphics card fan turns on for few seconds, then turns off and repeat. I tried plugging in Radeon R7 360 instead, which gave me the same result, also tried to plug in two different displays through DVI and HDMI, none of them worked, I didn't get any visual, the pc doesn't beep. The 8-pin, 24-pin and 6-pin PCI-E are all plugged in. Any help would be appreciated

 

[rounakr94]

Its most probably your power supply, it cant run all components of your pc with a low wattage on 12V rail which is causing problems. I have the same gpu chip and more powerful cpu than yours and dont face any issue. Replacing your psu will surely help.

 

[rubberjohny]

But wouldn't it at least get to the POST while under no load at all? Or at least make a beep sound. Also my PSU has only 24W less than yours on 12V while running less power hungry CPU, so I don't think that's an issue.