Desktop keep rebooting itself before bios

[FORSTA]

My desktop shut down itself suddenly. And when I tried to power it on,it goes through this boot loop(light + fan working, but shuts down after few secs then boot up by itself and goes through this cycle repeatedly) all this with nothing on display(black screen). Cpu/ motherboard issue?

 

[jtjt00]

List down all parts of your rig like those on the right -->

 

[FORSTA]

List down all parts of your rig like those on the right -->

Processor
Intel i5 3470
Mainboard
Asrock b75 pro-3m
Graphics Card
Palit GTX 1060
Memory
Crucial PC3-10600 4GB X 2
Storage
Samsung 850 EVO 250GB SSD, Seagate 1TB
PSU
Seasonic S12II-520

Basically, I've deduced that it's either cpu or motherboard issue(tried changing psu, reseat rams) but how do I find out? Sorry, not that good at hardware.

 

[tigerwoods]

i bet it's one of the the ram stick faulty

 

[jtjt00]

..... Basically, I've deduced that it's either cpu or motherboard issue(tried changing psu, reseat rams) but how do I find out? Sorry, not that good at hardware.

You got spare PSU to try?
As for rams, you clean the gold edges with eraser and try 1 piece at a time?

 

[LLCSG12]

Motherboard

 

[babyalann]

i bet it's one of the the ram stick faulty

Ram confirmed 100%. Happened to me too and i plug out plug in and problem solved

 

[-Synchronicity-]

Can also be ram slot faulty. Try out other slots.

 

[ZrE0_Cha0s]

its motherboard issues, have some forumer did complain on this issues b4. end up their issues is the mobo.

 

[raysusan]

Look like you nee to get another mobo