I have an older ASUS desktop tower that generally works fine, but it randomly wakes up from sleep. This seems to happen whenever I turn on my fan that's on the same circuit, change its speed, or plug in a device that draws a significant amount of power. It feels like the power supply might be sensitive to minor arcing or voltage fluctuations, but I'm not quite sure why this is happening. Any insights on potential causes or solutions?
5 Answers
It might be worth checking if Wake-on-LAN is enabled in your BIOS settings. Sometimes, network activity can wake the PC, so this could be a simple fix.
You may be experiencing "dirty power," which can trigger the motherboard to wake up. Using a UPS might help stabilize your power supply.
You should inspect the quality of your power connections and any capacitors in your system. Deteriorating contacts can lead to power fluctuations that wake the PC.
Check your BIOS settings for any options related to waking up after a power loss. Make sure that's set to 'Off' instead of 'Last State.' This setting, combined with Windows' hybrid shutdown feature, could be causing your issues.
If your fan and PC are using the same wall outlet or power strip, try plugging them into different outlets. Faulty power strips can cause issues like this too.
Related Questions
Lenovo Thinkpad Stuck In Update Loop Install FilterDriverU2_Reload