Computer bootlooping

[Madushka]

I recently built a computer, I connected all wires correctly and it turned on but I couldn't get pass the starting screen to the bios because the computer is not detecting my keyboard inputs, so I decided to clear cmos (first time doing). I know this sounds dumb and it is but I just placed the jumper and didn't turn the power on but when I took the jumper out and tried to turn the pc on, the pc just started to turn it self on for a second and off and repeat. Then I put the jumper back in and tried to turn the system on this time but nothing, no spinning fans of lights on the gpu. I thought "that's probably cleared the cmos" so I decided to remove it and turn it on but I get the same problem. Pc turns on for a second and turn it self back off and repeat. I reseated RAM but same problem. 

 

So I need a solution please if there is one

 

System specs: 

Intel Xeon x3450

Gigabyte h55 motherboard

1066mhz Kingston ram

Snowman cooler

500w evga psu

Gtx 970 4gb

120 ssd

[DemiGod]

Well try removing the battery inside the motherboard disconnecting everything  holding the power button for 20 seconds and turning it on 

[Madushka]

33 minutes ago, DemiGod said:

Well try removing the battery inside the motherboard disconnecting everything  holding the power button for 20 seconds and turning it on 

Same thing happened

[Johnny Relentless]

Unplug all harddrives and start ! Normaly it should force the system to open the bios because there is no boot priority

[Madushka]

13 hours ago, Johnny Relentless said:

Unplug all harddrives and start ! Normaly it should force the system to open the bios because there is no boot priority

Nope still keeps turning on and off

[Johnny Relentless]

Okay iam out of ideas ! For now on you only can try another mobo or psu ! 

I dont think thats the point but tried another cmos cell ? Maybe the old one in dead 

[Johnny Relentless]

Oh and clean it up you wouldnt believe what weird bugs dust can apply to your components