[pfSense-discussion] Can pfsense be turned off instantly like monowall?

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im using monowall installed in an old pc with
amd k6 500
256mb ram
1GB hd

monowall can be turnoff instantly without shutting it down
and when you turn it on again, it will work without errors.

can pfsense do that also?
turn off using the power button
and on again without errors?