Question My New PC Wakes Up Randomly from Sleep
Question My New PC Wakes Up Randomly from Sleep
The brief summary of the issue: I recently assembled a new PC using an Asus B550M-A WiFi II motherboard running Windows 11 Pro 64 bit. The system frequently wakes up from sleep unexpectedly, sometimes after four hours and other times immediately upon powering off. Checking the "powercfg -lastwake" command and the Event Viewer consistently shows that the wake-up is caused by the Power Button (which is never actually pressed). I have installed all the necessary motherboard drivers from the Asus website. Any suggestions on what might be behind this problem?
Take into account that the power button may be faulty, and minor vibrations or temperature shifts could lead to sporadic connections or shorts. Such occurrences can happen unpredictably. Inspect the case connections carefully. Make sure everything is properly and securely attached.
The links to the motherboard are clearly secure and well-established. It would be best to skip dismantling the front panel casing if possible. Perhaps testing the continuity at both ends of the power button connectors with a multimeter could provide useful insights while the system is idle.
Shut down the device and disconnect it to verify switch connectivity.
My concern about the defective power button stems from repeated experiences where systems have unexpectedly woken up multiple times. If there was a real problem with the button causing unstable connections, it would also lead to behaviors such as:
- Putting the computer to sleep unpredictably (never occurred)
- Shutting down the machine because the button was held down for too long (never happened)
- Turning the computer on even after it was off (never happened)
When trying to fix issues by troubleshooting wake-ups from sleep, I usually found that another application was triggering a wake event, but Windows incorrectly reported the cause as the power button.
EDIT:
At least as a starting point when the computer would wake up on its own, I ran
powercfg -requests
to check for obstacles in sleeping, and then used
powercfig -requestsoverride [name of thing]
to instruct Windows to disregard them. This might be useful, though it hasn't been necessary recently.
I agree with this. It seems reasonable to assume the button is safe as long as it functions perfectly and doesn’t cause shutdowns or unexpected behavior.
I think I’ll check a specialized Windows forum since I’m unsure how to proceed now.
Using my HP Omen 30L, the fans operate continuously during sleep mode. When the system is powered down, they stop functioning. It seems Windows Update might be checking for updates each night, though it should only occur once daily. The default behavior could be waking from sleep to perform this task.
It occurs right after falling asleep during any part of the day. I've talked to MS support several times about this issue, but they haven't provided a solution yet.