No monitor display

[Curt DJsis]

My new built pc dsent want to display anything on my monitor everything is there ram video card etc. all but a disk drive and no OS is installed on it either here are my parts if it helps:

Western Digital 250GB HDD

Cooler Master Elite 460W Power Supply

Gigabyte GZ-ZA1 Black ABS case

Cooler Master JetFlo 120

Gigabyte GV-N66OC GeForce GTX 660

MSI A78M-E35 FM2+ / FM2 AMD A78 (Bolton D3) HDMI SATA 6Gb/s USB 3.0 Micro ATX AMD Motherboard

AMD A4-5300 Trinity 3.4GHz (3.6GHz Turbo) Socket FM2 65W Dual-Core Desktop APU (CPU + GPU) with DirectX 11 Graphic AMD Radeon HD 7480D AD5300OKHJBOX

G.SKILL Ripjaws X Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333

 

[ModernWarfare]

try re-seating the ram

 

[Curt DJsis]

try re-seating the ram

Could you please tell me how and also is the ram easy to break because im afraid ill miss the slot to put the ram in and break it by accident

 

[shortstuff_mt]

Perform all the steps in this troubleshooting checklist and let us know how it goes.

 

[Curt DJsis]

no i know everything is okay cause took all the stuff out the case and re did everything