PC randomly shuts off, won't power on.

thomaslai59 · Apr 22, 2018

Hello! First timer on this forum.

I custom built my PC about 1.5 years ago, and it was running perfectly fine up until yesterday night.

Before I go into detail, here is my rig : https://pcpartpicker.com/user/thomaslai59/saved/Hn7bjX

I added the extra RAM, HDD, & SSD about 1 month ago.

I used my computer the morning of yesterday to play some games and it worked fine. Had to step out the house and when I got back to my computer late night (probably 13 hour gap) the computer was off. Went to press the power on button and nothing happened. No fans spun at all, no lights, or anything. Usually my MOBO has a LED Light that shows however it didn't either. The weird thing is that the rgb light was lit on my keyboard & mouse (both connected directly to my mobo usb slots).

I took apart my case to double check any loose cords, and made sure to reseat the RAMs and etc. I also tried removing part by part and trying to power it on but no luck either. I thought it could've meant that my PSU died however I did the paperclip test and it passed. Does this mean my MOBO is completely dead?

Thanks in advanced.

Shektron · Apr 23, 2018

Did you try shorting the power on pins on the motherboard? Could be that the power button isn't working. I doubt the motherboard's dead, because then the keyboard and mouse wouldn't have lights.

SkyNetRising · Apr 23, 2018

thomaslai59 :

This doesn't really mean, that the PSU is fine. You'd have to test all voltages also.

Calvin7 · Apr 23, 2018

Using multiple kits of memory can cause the PC not to boot or the memory to be unable to operate at rated specifications.

Try removing the extra memory you added.

thomaslai59 · Apr 23, 2018

Shektron :

How would I do this?

thomaslai59 · Apr 23, 2018

Calvin7 :

Would I only remove the two RAM sticks I added recently? or only seat 1?

thomaslai59 · Apr 23, 2018

Calvin7 :

Edited: wrong response

Shektron · Apr 23, 2018

thomaslai59 :

Refer to your motherboard manual for 'Power button' pins. They are two pins present in a group of pins collectively known as 'Front Panel connectors'. The two pins that correspond to the power button need to be bridged together with a conductor, like a screwdriver. This eliminates the need to press the power button to start up the system, could [strike]be[/strike] fix the issue here. Also, stating the obvious - make sure your power supply switch is on, if there is one.

thomaslai59 · Apr 23, 2018

Shektron :

thomaslai59 :

Refer to your motherboard manual for 'Power button' pins. They are two pins present in a group of pins collectively known as 'Front Panel connectors'. The two pins that correspond to the power button need to be bridged together with a conductor, like a screwdriver. This eliminates the need to press the power button to start up the system, could [strike]be[/strike] fix the issue here. Also, stating the obvious - make sure your power supply switch is on, if there is one.

Will try later tonight and update you, thanks!

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