Power
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10 resultsDesktop PC will not power on
If the current symptom is closer to “no response when pressing the power button,” first check for problems with the power strip, outlet, power cable, or power supply failure. The key is to reduce unnecessary disassembly by checking the external power supply, power supply, and motherboard in that order.
Laptop not turning on at all
If you are experiencing the “Laptop not turning on” symptom, possible causes include charger or adapter issues, or a deep battery discharge. Classify the charger, battery, and power management circuits in order, starting with the easiest items.
No response when pressing the power button
If you are experiencing the “power button not working” symptoms, possible causes include a problem with the case power switch or front panel cable, or a power supply issue. The key is to reduce unnecessary disassembly by checking the external power supply, power supply, and motherboard in that order.
Computer suddenly turns off
If the current symptom is close to “the computer suddenly turns off,” first check for overheating protection and power supply output instability. It is easy to find the cause of sudden shutdown or reboot by checking the power supply, temperature, and tuning settings separately.
Computer turns on and then immediately turns off
If the current symptom is close to “turns off as soon as power is turned on,” first check for POST stage hardware errors, CPU auxiliary power, or RAM installation problems. It is easy to find the cause of sudden shutdown or reboot by checking the power supply, temperature, and tuning settings separately.
Problem with the computer turning on and off repeatedly
This guide is organized to categorize items such as failed memory initialization, overclocking, or unstable BIOS settings in a safe order for “infinite reboot” situations. It is easy to find the cause of sudden shutdown or reboot by checking the power supply, temperature, and tuning settings separately.
Computer suddenly reboots while in use
Among power issues, the “computer reboots alone” symptom may be related to power instability or overheating. It is easy to find the cause of sudden shutdown or reboot by checking the power supply, temperature, and tuning settings separately.
PC does not wake from sleep
If the current symptom is close to “not waking up from sleep mode,” first check the device driver power status and BIOS/chipset. Check at which stage it fails during sleep entry and exit, and check the driver, power policy, and BIOS in that order.
PC wakes from sleep on its own
If the current symptom is closer to “the computer turns on alone,” first check whether scheduled tasks, wake timer, network, or USB devices are woken up. Check at which stage it fails during sleep entry and exit, and check the driver, power policy, and BIOS in that order.
Hibernate disappeared from Windows Power Menu
Among power issues, the “No Hibernate” symptom may be related to feature disabling, power policy, or differences in Modern Standby support. Check at which stage it fails during sleep entry and exit, and check the driver, power policy, and BIOS in that order.