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PC Turns on by itself (multiple troubleshooting guides failed)

Hello,

unfortunately, I am experiencing automatic starts of my PC.

This usually happens about 3-5 minutes after shutting the PC down.

For the last days I "solved" this problem by switched the Power-Supply off when not using the computer. After doing so and then switching the power supply back on the PC doesnt start by itself 

 

I'm using the latest Insider (Release Preview) Windows 11 Pro V 21H2 (Build 22000.469) version. This behavior started before enrolling to Insider builds. 

 

Unfortunately, it doesnt appear to be one of the basic problems. As shown below there is nothing set to be able to restart the computer.  (Ignore the waketimer; this one's to install an update is isn't there usually.) 

image.png.69cd0bd1bb2e55c865b816e2b48a0d0a.png

 

Event Viewer doesnt show anything of significance.

 

PC is plugged directly into the wall.

 

Does anyone know any further possible reasons for the PC starting itself?

 

System:

Ryzen 3600

Gigabyte B450M DS3H

GIGABYTE RTX 2080 GAMING OC

G.Skill Aegis 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory

 

 

Windows 11 Pro 22H2

Ryzen 3600

Gigabyte B450M DS3H

GIGABYTE RTX 2080 GAMING OC

G.Skill Aegis 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory

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So just to be clear, you power down the computer, the lights all go off, and then it just turns back on correct?

 

That is super weird, only two things I think could do that, maybe three.

Is there a front panel board on this, like front usb with a port button I assume?

 

The first thing I would think is a short in the front panel cables or power button. What happens if you carefully take out the front panel cables?

If you don't know, you can turn the system on via a screwdriver across the PWR + and PWR - pins.

 

If that works, they might have been incorrectly wired or shorting together or the power button itself is messed up

 

What happens when you do a CMOS clear?

Can you verify all the PSU cables are well seated on the 12VATX and CPU connectors?

on the off chance, is fast startup turned on under like power options -> change what the power button do -> fast startup check box. Turn that crud off

 

Does it have the latest UEFI BIOS?

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17 minutes ago, jonahadami said:

Does anyone know any further possible reasons for the PC starting itself?

Run the following in PowerShell (not Command Prompt):

Get-ScheduledTask | where {$_.settings.waketorun}

and reply with the output.

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12 minutes ago, AbydosOne said:

Run the following in PowerShell (not Command Prompt):

Get-ScheduledTask | where {$_.settings.waketorun}

and reply with the output.

I already checked this before. This is the result:

image.png.4c184671a60fd8d5c5049cd53081b81b.png

 

 

20 minutes ago, Frizz said:

So just to be clear, you power down the computer, the lights all go off, and then it just turns back on correct?

Indeed. After powering down the PC starts itself after some time. Sometimes its 5minutes, sometimes a bit more like 15minutes.

 

 

Yes, there is a front panel including USBs and Power and Restart Button.
I will try disconnecting the front panel cables tomorrow (it's almost 2am here in Germany)

I will try a CMOS Clear and verify all cables.

 

Fastboot was already disabled both in Windows and BIOS. Latest BIOS is installed. 

Windows 11 Pro 22H2

Ryzen 3600

Gigabyte B450M DS3H

GIGABYTE RTX 2080 GAMING OC

G.Skill Aegis 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory

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Obviously, when trying to troubleshoot a problem it doesn't occur.

 

Right now it works as intended without changing anything.

I will report back once the problem reappears (which is expect in the next few days) 

Windows 11 Pro 22H2

Ryzen 3600

Gigabyte B450M DS3H

GIGABYTE RTX 2080 GAMING OC

G.Skill Aegis 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory

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Be sure to deactivate "power on after power-loss" in the BIOS. If that is activated a power dip/spike in the electrical system can cause it to start.

 

Disconnect every external USB, leave the mouse and KB. Does the problem continue try unplug the mouse and KB also.

 

Does it still persists try unplugging the network cable. 

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