cancel
Showing results for 
Search instead for 
Did you mean: 

Computer shuts down after a few seconds

SergioGarG
Level 7

Hi everyone,

Noob here, so beware. After some years, I finally decided to build a PC from some new parts and some inherited from my brother (see the list below).

I assembled everything, but after I powered up the computer, I realized the motherboard lighted a few LEDs orange. What is worse, after turning on the PC, it shuts down after a few seconds (https://www.youtube.com/watch?v=GUZP-Gfs_U0).

I then went down the rabbit hole and started removing components from the configuration to isolate the issue. At some point, I had only the PSU, motherboard, and CPU connected but the problem remained.

I also read that the problem could be the case so I removed the motherboard from it and placed it on top of a surface that wouldn't cause static electricity (https://imgur.com/tzwUDdC). That didn't solve it.

I then started trying to replace components. I requested a new motherboard expecting it to be the main problem. That wasn't it. Thinking that the problem could be the PSU - the power supply might not be enough, I suspected - I bought a new one. But no, it wasn't the problem either. At this point, I'm a bit desperate so I'm begging for help.

I then started trying to replace components. I requested a new motherboard expecting it to be the main problem. That wasn't it. Thinking that the problem could be the PSU - the power supply might not be enough, I suspected - I bought a new one. But no, it wasn't the problem either.

Another potentially interesting thing to highlight is that everything shuts down if I leave the power button jumper on the "10-1 pin Sustem Panel header". If I use the jumper and immediately remove it when the system boots the fans keep spinning - although the orange LED remains and the video outputs don't work.

I have also checked that the motherboard is compatible with the CPU, and it is supposed to be.

At this point I'm a bit desperate so I'm begging for help. Thanks in advance!

--List of components:

- Motherboard: Prime asus b450m-a II [new]
- SSD: crucial P3 PCIe NVMe M.2 SSD [new]
- RAM: x2 DDR4 vengeance LPX sticks [inherited]
- CPU: AMD Ryzen 5 2600 [inherited]- GPU: sapphire radeon rx580 [inherited]
- PSU: Enermax naxn (500 W) [inherited] -> Seasonic G12 GC-850 (850 W) [new]

PS: I've other posts (e.g., https://www.reddit.com/r/buildapc/comments/ahp51r/comment/eegonu3/) but didn't solve my problem.

110 Views
1 REPLY 1

Jiaszzz_ROG
Customer Service Agent

Hello @SergioGarG 

Due to the ongoing local holidays in our area, my response time may experience delays.
I apologize for any inconvenience the delayed replies may have caused.

As we have observed repetitive posting, we recommend using this thread as the primary avenue for communication:
Problem with built PC
If you have any updates or discussions related to this matter, please update that thread to avoid confusion or information gaps.

Thank you.

sharing complete hardware info & software config details will help us better understand the issue 🙂