Graphics card boot issues

[Telescuffle]

Hi,

Whenever I try to boot my PC in the morning, I get 4 BIOS beeps (1 long, 3 short). However, I am struggling to diagnose what's causing the issue. I'm fairly sure its the GPU but after an RMA for it, nothing was found to be wrong with it. I have also tested the ram with health checks and moved it around the slots. When I ran my PC without the GPU, it ram without this fault for the time my GPU was gone. I have also tried moving the GPU to different slots with no success. I should also add that the PC boots but with no display.

Does anybody have an any ideas?!

Thanks

[TheRandomness]

Full specs please. Look in the manual for what the beeps mean. 

[Telescuffle]

Specs are:

 

CPU: Intel i5 4690k

GPU: MSI R9 270X 4G Gaming

RAM: 12GB DDR3 1600MHz (3x4GB sticks)

Mobo: Asus Z97-PRO GAMER

PSU: EVGA 600W Bronze

 

Theres nothing in the manual of any use: http://dlcdnet.asus.com/pub/ASUS/mb/LGA1150/Z97-PRO_GAMER/E10265_Z97-PRO_GAMER_Guide_v2_web_hi_res.pdf

 

But people online seem to say its a GPU memory issue.

 

Thanks