PC turns on with a key press

[Flika1999]

Whenever I press a keyboard key, my PC turns on, even when all the way shut down. I have no idea why this happens, it can be annoying. Any idea how to fix this?

[Astro_80 (WASH YOUR HANDS!)]

Probably some Power Management setting in your BIOS. What motherboard do you have?

[Anero]

I dont remember where to change it, but I remember that its possible to start pc with keyboard I wouldnt worry about it but lets see, what is your keyboard model

[Omega]

Yes, you likely have "Power-on on USB" or "Power-on on keyboard" or a similar setting enabled in BIOS.

Also check if your BIOS has a "keep USB powered" setting somewhere in the BIOS, this setting is used for charging USB devices such as phones while the PC is shut down.

[Flika1999]

โพสต์ดั้งเดิมโดย Astro_80:

Probably some Power Management setting in your BIOS. What motherboard do you have?

โพสต์ดั้งเดิมโดย Omega:

Yes, you likely have "Power-on on USB" or "Power-on on keyboard" or a similar setting enabled in BIOS.

Also check if your BIOS has a "keep USB powered" setting somewhere in the BIOS, this setting is used for charging USB devices such as phones while the PC is shut down.

I have the ASRock AB350 Pro4. I thought it might be something in the BIOS, but didn't see anything.

[Omega]

I am checking the manual and there is a power on on keyboard for PS/2 keyboards in "Advanced > ACPI Configuration". There is a few other "Power on" settings here aswell, disable all of them.

[Azza ☠]

Start > Settings (little gear icon) > System > Power & Sleep (left tab) > Additional power settings (right tab)

Then go under "Choose what the power buttons do" (left tab) > "Change settings that are currently unavailable".

(Don't you just love Windows UI design)

When I press the power button > Ensure this is set to "Shut down"

Ensure your PC is actually fully shutting down firstly, not using Hibernation / Sleep / Fast Boot image.

Then the rest will be just "Wake on LAN", if it's from completely shutdown that will be under your BIOS settings, else under Windows Power Management.

Enter BIOS upon booting (normally DEL key) > Advanced page > select ACPI Configuration > change PCIE Devices Power On to "Disable". Same deal for "PS/2", which it sounds like you already done.

[Flika1999]

โพสต์ดั้งเดิมโดย Omega:

I am checking the manual and there is a power on on keyboard for PS/2 keyboards in "Advanced > ACPI Configuration". There is a few other "Power on" settings here aswell, disable all of them.

They are disabled. Makes no difference.

โพสต์ดั้งเดิมโดย Flika1999:

โพสต์ดั้งเดิมโดย Omega:

I am checking the manual and there is a power on on keyboard for PS/2 keyboards in "Advanced > ACPI Configuration". There is a few other "Power on" settings here aswell, disable all of them.

They are disabled. Makes no difference.

It also has been making a "pop" sound when exiting the BIOS.

[Azza ☠]

โพสต์ดั้งเดิมโดย Flika1999:

โพสต์ดั้งเดิมโดย Flika1999:

They are disabled. Makes no difference.

It also has been making a "pop" sound when exiting the BIOS.

The "pop" sound, if coming from the speakers upon start up is okay. It's just them getting juice off/on suddenly, so makes a "pop" noise. That's just how speakers work, specially if a subwoofer.

---

If it's not a laptop and you don't wish to use sleep / hibernation at all, then under Windows > Search/Run > type "cmd.exe" (without the quotes) > Right-click on the "Command Prompt" and select "Run as Administrator".

Under the admin command prompt, type the following command:

powercfg.exe /h off

After a reboot, Windows will remove the Hibernation file and stop going into Hybrid Sleep.

Note: If you ever want it back, just type "powercfg.exe /h on"

[Flika1999]

โพสต์ดั้งเดิมโดย Azza ☠:

โพสต์ดั้งเดิมโดย Flika1999:

It also has been making a "pop" sound when exiting the BIOS.

The "pop" sound, if coming from the speakers upon start up is okay. It's just them getting juice off/on suddenly, so makes a "pop" noise. That's just how speakers work, specially if a subwoofer.

---

If it's not a laptop and you don't wish to use sleep / hibernation at all, then under Windows > Search/Run > type "cmd.exe" (without the quotes) > Right-click on the "Command Prompt" and select "Run as Administrator".

Under the admin command prompt, type the following command:

powercfg.exe /h off

After a reboot, Windows will remove the Hibernation file and stop going into Hybrid Sleep.

Note: If you ever want it back, just type "powercfg.exe /h on"

Funny thing...
The PC is a desktop with no speakers. I have no idea where the pop is coming from.

[Omega]

โพสต์ดั้งเดิมโดย Flika1999:

โพสต์ดั้งเดิมโดย Azza ☠:

The "pop" sound, if coming from the speakers upon start up is okay. It's just them getting juice off/on suddenly, so makes a "pop" noise. That's just how speakers work, specially if a subwoofer.

---

If it's not a laptop and you don't wish to use sleep / hibernation at all, then under Windows > Search/Run > type "cmd.exe" (without the quotes) > Right-click on the "Command Prompt" and select "Run as Administrator".

Under the admin command prompt, type the following command:

powercfg.exe /h off

After a reboot, Windows will remove the Hibernation file and stop going into Hybrid Sleep.

Note: If you ever want it back, just type "powercfg.exe /h on"

Funny thing...
The PC is a desktop with no speakers. I have no idea where the pop is coming from.

Ok, that rings alarm bells.

[Flika1999]

โพสต์ดั้งเดิมโดย Omega:

โพสต์ดั้งเดิมโดย Flika1999:

Funny thing...
The PC is a desktop with no speakers. I have no idea where the pop is coming from.

Ok, that rings alarm bells.

The popping stopped now, but I have no idea what it was. Turning off the keyboard power on does literally nothing lol

[Azza ☠]

You do understand, your PC is most likely never actually being shutdown right? Rather it's gone into a sleepmode or hibernation, hense a pressing a key or mouse movement wakes it back up.

If you haven't already, check what the 'power button' is doing on Windows, as mentioned above. Sometime it defaults to "hibernate" and "fast boot" on some motherboards, just changing randomly on you after a certain Windows update. It's stupid, but yeah could be your issue.

If you really want to force check a "shutdown", without changing the settings above yet:

- Right-click on the Start button or Win key + X
- Click "Shut down or sign out" > "Shutdown"

Then try using the keyboard and mouse to wake it back up. As that will be from a full shutdown.

[Flika1999]

โพสต์ดั้งเดิมโดย Azza ☠:

You do understand, your PC is most likely never actually being shutdown right? Rather it's gone into a sleepmode or hibernation, hense a press press or mouse movement wakes it back up.

If you haven't already, check what the 'power button' is doing on Windows, as mentioned above. Sometime it defaults to "hibernate" and "fast boot" on some motherboards, just changing randomly on you after a certain Windows update. It's stupid, but yeah could be your issue.

I did what he said, it is set to shutdown.

[Azza ☠]

โพสต์ดั้งเดิมโดย Flika1999:

โพสต์ดั้งเดิมโดย Azza ☠:

You do understand, your PC is most likely never actually being shutdown right? Rather it's gone into a sleepmode or hibernation, hense a press press or mouse movement wakes it back up.

If you haven't already, check what the 'power button' is doing on Windows, as mentioned above. Sometime it defaults to "hibernate" and "fast boot" on some motherboards, just changing randomly on you after a certain Windows update. It's stupid, but yeah could be your issue.

I did what he said, it is set to shutdown.

Interesting then that the BIOS power settings didn't affect it. Are you sure you pressed "Save and Exit" on the BIOS?

[Flika1999]

โพสต์ดั้งเดิมโดย Azza ☠:

โพสต์ดั้งเดิมโดย Flika1999:

I did what he said, it is set to shutdown.

Interesting then that the BIOS power settings didn't affect it. Are you sure you pressed "Save and Exit" on the BIOS?

yes. I did it several times to be sure.