[SOLVED] PWR_LED is red - Asus Strix Z270F Gaming LGA1151

[Graphartist]

Hello,

I built my PC few years ago and my computer worked well during that time. Recently, I changed my tower case so I moved my old config to the new tower case.
I checked many time if I plugged well all the composants and I am sure that everything is fine. But nothing work, the power supply fan doesn't work too, I can only see the colors led from the motherboard.
I also have a red led called "PWR_LED" that is always red.
I tried to reset the motherboard and weirdly, it worked for a minute then when I unplugged the power supply and plug back it didn't work.

Link of my motherboard: https://rog.asus.com/motherboards/rog-strix/rog-strix-z270f-gaming-model/
I attached pictures into this post (please be nice on the cable management haha, I will fix it when it's going to work again) .

Thank you for your help

 

[--SID--]

Looks like there are no spacers between MB and case. That's creating a short.

 

[Graphartist]

Looks like there are no spacers between MB and case. That's creating a short.

Hi, could you identify where I am missing the spacer in the image?
Thank you

 

[bignastyid]

Did you use standoffs between the case and the motherboard? Because in that last pic it looks like there is very little room between the motherboard and the tray. I can also count atleast 2 missing screws for the motherboard. Why are you using thumbscrews to hold the motherboard down?

Ram is also installed in the wrong slots for dual channel operation.

Cable managment needs some work.

 

[Graphartist]

Did you use standoffs between the case and the motherboard? Because in that last pic it looks like there is very little room between the motherboard and the tray. I can also count atleast 2 missing screws for the motherboard. Why are you using thumbscrews to hold the motherboard down?

Ram is also installed in the wrong slots for dual channel operation.

Cable managment needs some work.

Hi,
Thank you for your prompt response.

What do you mean by "there is a little room between the motherboard and the tray"?

I put the 2 missing screws that I forgot but it's still doesn't work..

thank you

 

[bignastyid]

What do you mean by "there is a little room between the motherboard and the tray"?

It looks like you mounted the motherboard to the motherboard tray in the case without standoffs. This would case a massive short between the board and the case which would case it not to turn on and could damage motherboard and other components.

 

[Graphartist]

It looks like you mounted the motherboard to the motherboard tray in the case without standoffs. This would case a massive short between the board and the case which would case it not to turn on and could damage motherboard and other components.

I took out the motherboard from the tower case and It's still doesn't work 😕
Do you think the Motherboard is dead?

Thank you

 

[bignastyid]

Post a pic of the inside of the case with the motherboard out.

 

[Graphartist]

Post a pic of the inside of the case with the motherboard out.

Voila

 

[bignastyid]

Ok, good news is I see standoffs, so must have just been the angle of the picture. However I did notice the cpu is not secured down 1 corner is loose and the other 3 are held down with a retaining washer?

 

[Graphartist]

Ok, good news is I see standoffs, so must have just been the angle of the picture. However I did notice the cpu is not secured down 1 corner is loose and the other 3 are held down with a retaining washer?

Yes the 3 corners are held down with the retaining washer.
i will put the one I forgot then I will tell you

 

[Graphartist]

Ok, good news is I see standoffs, so must have just been the angle of the picture. However I did notice the cpu is not secured down 1 corner is loose and the other 3 are held down with a retaining washer?

Hi,
This is still doesn't work :/

 

[bignastyid]

Try it striped down to the min required to post. Cpu, power, and 1 stick of ram in slot A2(2nd slot from cpu). So no gpu or other pci-e/pci cards and no ssds, hdds or optical drives. Plug the monitor into the motherboard. Also incase the igpu is disabled reset bios defaults(page 1-9 of the manual details how to do this).

 

[Graphartist]

Try it striped down to the min required to post. Cpu, power, and 1 stick of ram in slot A2(2nd slot from cpu). So no gpu or other pci-e/pci cards and no ssds, hdds or optical drives. Plug the monitor into the motherboard. Also incase the igpu is disabled reset bios defaults(page 1-9 of the manual details how to do this).

I reset bios default following the link you sent me and it's still doesn't work. I see nothing on my monitor screen.
The monitor knows that there is an entry coming but it doesn't show the bios.

Should I use an HDMI cable instead of the Display Port Cable?

Thank you

 

[bignastyid]

Was it striped down to minimum?

 

[Graphartist]

Was it striped down to minimum?

Yes it is.
I kept only the CPU and RAM.

 

[bignastyid]

When you power it on do the post leds do anything(page 1-11)

 

[Graphartist]

When you power it on do the post leds do anything(page 1-11)

When I power it there's no leds that light up. Only the pwr_led is on and red

 

[bignastyid]

You have to either connect the power button from the case or use a screw driver to temporarily short the pwrsw pins on the system panel connector(page 1-20).

 

[Graphartist]

You have to either connect the power button from the case or use a screw driver to temporarily short the pwrsw pins on the system panel connector(page 1-20).

good news. The fan from the power supply now works. But nothing happen on the monitor

 

[bignastyid]

And the post leds?

 

[Graphartist]

And the post leds?

https://youtube.com/shorts/GfL3fUr3q1g?feature=share

This is what happened to the post leds

 

[bignastyid]

Ok it's going through post and not stopping at one. What port is the monitor plugged into? Is the monitor set to that input?

 

[Graphartist]

Ok it's going through post and not stopping at one. What port is the monitor plugged into? Is the monitor set to that input?

On display port

 

[bignastyid]

Plug in a keyboard and see if the lock lights flash.