Z77X-D3H, what does this "Beep Code" mean?

NickHN

Honorable
Jul 28, 2015
7
0
10,510
Specs:
Motherboard: Gigabyte Z77X-D3H
Graphic card: Readon HD-7970
CPU: i7-3770k

One day my Computer just started making a 10 second repeatedly short beep, without stop, then after 10 seconds it's rebooting then doing the same thing over and over again.
 

NickHN

Honorable
Jul 28, 2015
7
0
10,510


Thanks, tried to switch the RAMs then it would start without any beep codes, but now my monitor just view "No signal" then "Entering sleep mode":
 

NickHN

Honorable
Jul 28, 2015
7
0
10,510


Specs:
Motherboard: Gigabyte Z77X-D3H
Graphic card: Readon HD-7970
CPU: i7-3770k
RAM: DDR3-1600 Kingston 4gb HyberX - x4 - 16GB
Harddrive: HDS 2000GB Seagate/Samsung SATA3 64mb
SSD Samsung 830 256GB
PSU: RaidMax RX-850AE 80+ Gold
Operative System: Windows 8
___

Didnt work with the single RAM.
It seems like nothing is working, while on, the USB aren't on, and seems like the monitors arent aswell.