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| Confuse Computer |
When you press on the power button (or shut down through an OS) it begins by saving all used data and dumping all RAM (Random Access Memory). This, in turn shuts down the OS and finally the circuitry cuts off power to the motherboard, but not completely, the final click is when capacitors are discharged at the end.
The operating system may intercept an ACPI button event from you pressing the power or sleep button. The OS may also initiate a restart from Start/Shutdown/Restart (Windows) or init 6 / reboot or shutdown command (*NIX).
Once the restart sequence is initiated, the OS may instruct all running programs that a shutdown is in progress. These programs/services in turn will initiate their shutdown process to save data and unload from memory safely. The OS will eventually KILL programs or services that do not support or respond to a shutdown event.
The OS will send a command to the ATX power supply (onyl ATX supports soft powerdown) if shutting down. Otherwise, the OS will simply issue a command to the CPU to warm boot.
BIOS then takes over the boot process, loads first 512 bytes of detected boot device, jumps to boot loader code and you are back up and runnning.
In the case of problematic restarts, these may be due to malfunctioning hardware on the bus (add-on cards) or misbehaving drivers. Safe mode or single user boot will rule out most drivers. Failing that, yank non-critical add-on periferals.
The computer can be restarted by selecting start and than shut down, then restart.
Also, it may be turned off by holding down the turn on button, but that is EXTREMLY UNRECOMMENDED if your computer holds anything important at all. By doing it that way your computer is susceptibal to losing data due to improper shutdown. Use it for emergencies only.
There is a fast and good way to restart your computer:
Go to Task Manager => Shutdown Menu => Hold Ctrl key and select Restart or shutdown.
Your computer will be restarted or turned off in 3 Seconds!
The operating system may intercept an ACPI button event from you pressing the power or sleep button. The OS may also initiate a restart from Start/Shutdown/Restart (Windows) or init 6 / reboot or shutdown command (*NIX).
Once the restart sequence is initiated, the OS may instruct all running programs that a shutdown is in progress. These programs/services in turn will initiate their shutdown process to save data and unload from memory safely. The OS will eventually KILL programs or services that do not support or respond to a shutdown event.
The OS will send a command to the ATX power supply (onyl ATX supports soft powerdown) if shutting down. Otherwise, the OS will simply issue a command to the CPU to warm boot.
BIOS then takes over the boot process, loads first 512 bytes of detected boot device, jumps to boot loader code and you are back up and runnning.
In the case of problematic restarts, these may be due to malfunctioning hardware on the bus (add-on cards) or misbehaving drivers. Safe mode or single user boot will rule out most drivers. Failing that, yank non-critical add-on periferals.
The computer can be restarted by selecting start and than shut down, then restart.
Also, it may be turned off by holding down the turn on button, but that is EXTREMLY UNRECOMMENDED if your computer holds anything important at all. By doing it that way your computer is susceptibal to losing data due to improper shutdown. Use it for emergencies only.
There is a fast and good way to restart your computer:
Go to Task Manager => Shutdown Menu => Hold Ctrl key and select Restart or shutdown.
Your computer will be restarted or turned off in 3 Seconds!
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