What is dying in my PC

Computer tec

Honorable
Oct 1, 2012
40
0
10,530
GPU - Asus GTX 690
MOBO - Rampage IV Extreme
CPU - I7-3970X

I have RMA my GPU and i got it back with no faults found yet i'm getting red screens, and also got a green screen today while i was in the BIOS settings
I get Beep codes 1 long beep 4 short beeps Which i fixed taking the gpu out and putting it back in it worked for about 5 mins then it happened again so i removed the ram then put back in then it works again just its it the GPU or the MOBO.