Diy com will not start up

[applebig]

Guys I just built a new one but the com will not start up. Everything is plugged correctly and when I start up, the fan just spun for a split second, LED light up once. Then nth else happens. No display and cpu fan isn't running.

What might be the problem here?

 

[Jian19]

Ur CPU fan got plug ? mobo 8 pin connector got plug in ?

 

[applebig]

Ur CPU fan got plug ? mobo 8 pin connector got plug in ?

All have... Nothing is showing up on display. GPU not running also. Is it mobo problem?? I just bought from pc theme.. Parents now keep nagging ah

 

[Jian19]

Maybe just try start up with just ram on see how

Maybe somewhere never plug properly

 

[dolphinv]

Did u turn on the power supply from the back? not the wall plug. I got once also did not do that and the led light can still spin.

 

[tungsten2]

The last time when it happened to my diy pc is the mobo firmware not support the cpu. Bring back to the shop that you bought the mobo and ask the to flash the firmware.

 

[applebig]

The last time when it happened to my diy pc is the mobo firmware not support the cpu. Bring back to the shop that you bought the mobo and ask the to flash the firmware.

Think I'll just bring it back. Anyone know what's the operating hour for pc theme today??

 

[jtjt00]

Look like somewhere short-circuited, PSU shutdown to prevent damage. You use the casing spacers to install the motherboard?

 

[applebig]

Look like somewhere short-circuited, PSU shutdown to prevent damage. You use the casing spacers to install the motherboard?

Idk if it's call casing spacers. The standoff counted?? I was thinking it is short circuit also but idk how handle.

 

[ericccc]

the last time i screw the m.2 too firm at the motherboard it cannot start up. just sharing fyi

 

[freakerknoid]

I'm not an expert on this but i diy my first computer about a month ago and it started up for less than 5 sec and shut down again.

It turns out to be 1 of the faulty ram. if you bought a dual channel ram kit you might want to test it by installing 1 ram at a time see if its the ram issue. Reason why i say this is because the problem you encounter is pretty similar to mine.

 

[monikernemo]

Got any error code device on mobo? Or any beeping or error lights? May want refer to mobo manual

 

[halnala]

Guys I just built a new one but the com will not start up. Everything is plugged correctly and when I start up, the fan just spun for a split second, LED light up once. Then nth else happens. No display and cpu fan isn't running.

What might be the problem here?

Highly possible a PSU issue. I just did a diagnostic for a friend last month. 1 year old Seasonic 80+ bronze PSU was the problem.

Fans spin up for split second and powered off was the exact symptom.

 

[jtjt00]

Highly possible a PSU issue. I just did a diagnostic for a friend last month. 1 year old Seasonic 80+ bronze PSU was the problem.

Fans spin up for split second and powered off was the exact symptom.

Not sure if TS case, the PSU is brand new or recycle from old rig.