Question Computer randomly stopped starting up?

[whoisme555]

I built this system about a year ago with pretty high end parts. The motherboard is an aorus gaming 7, the power supply is a 1000 watt evga G3. Processor is an i9 9900k and ram is Corsair vengeance pro, and the case is Corsair obsidian 500d.

It's been working just fine til today when the power button stopped doing anything. Almost like it's not getting power.

The keyboard still lights up and there's a red power icon led on the motherboard (pushing it didn't change anything) so there's definitely power going to the system.

No lights flash when pushing the power button, no fans spin, nothing on the monitors. I was thinking the PSU may have died, but I plugged a different PSU into the 24 pin and 8 pin Mobo power slots to no effect.

The PC has not moved, so a short seems like the next possibility, but nothing could have shaken loose so I have no idea how that could possibly be the case.

If it was a short, would the keyboard still be able to get power from the computer despite the computer not being able to turn on?

If not, does anyone have any idea about how to narrow the issue down?

 

[Ralston18]

If two PSU's have not worked then the motherboard is suspect.

Have you checked that all other motherboard components and cables are fully and firmly seated?

What about a new CMOS battery?

Roll back the components to a basic hardware configuration: motherboard, integrated graphics, RAM, and boot drive.

Objective being to at least get the computer to boot.

 

[Ketchup79]

You might want to pull the board out of the case, with only the CPU/fan and one RAM stick on the board, display connected to onboard video, and power supply. Try to power is up using the power switch located by the RAM slots.

 

[whoisme555]

I was worried it was a motherboard issue, but it seems weird to have a flawless motherboard for a year, only to one day completely fail to respond.

I took a look around the board and it seemed that all components were firmly seated but I have not tried replacing the CMOS battery. Was hoping to avoid doing so, because I don't want to redo the overclock, but it sounds like that's the next step.

I'm currently running without the GPU, I could remove my non boot drive but other than that, I'm pretty barebones as it is :/

 

[Ketchup79]

So you aren't running it in a case?

 

[whoisme555]

Not yet, I'll give that a try when I get a chance, hopefully tomorrow night, will post back when I do

 

[whoisme555]

No luck, removed the motherboard from the case, replaced the CMOS battery, and tried another PSU. I assume that my motherboard just randomly crapped the bed after only a year of use?

 

[Ketchup79]

Anything change outside the case? Any fans spinning, etc?

Just to confirm, how are you powering it up outside of the case?

 

[whoisme555]

Nothing spinning, no leds on processor cooler. I'm powering it by plugging the 24 pin and 8 pin to the motherboard, and plugging the psu into the wall, disconnected everything else