-----Original Message-----
Bob Seeley said in news:1e1cc01c45492$08bbcba0
[email protected]:
I was having problems trying to figure out why my system would power up
after powering down for a hibernate. I checked the BIOS settings to
ensure there were no WakeUp events enabled and that the timer (RTC
Alert) was disabled (so the system doesn't wake up at a specified time).
I checked the devices in Device Manager to ensure that none had an
advanced power option that let the device wakeup the system. For the
network card, I looked at its advanced properties and disabled the
WakeUpLAN function. Although the OS isn't running at the time,
apparently this setting performed by software can configure the NIC
hardware to wakeup. My system would still wake from hibernate mode.
Turns out that some of the tasks defined in Task Scheduler have the
"Wake the computer" option enabled. I thought this was to wake the OS
when it was in Standby mode to make sure the task would run at the
scheduled time. However, if you click the "?" icon in the titlebar and
then click on this option, it says it will wake the computer from the
Sleep mode. Well, Sleep mode is hibernate mode. I have tested for only
1 night so far with the "Wake the computer" option disabled for all
scheduled tasks. The computer was NOT found powered up the next morning
so it worked so far. It'll be a few nights before I can be sure that
this was the cause for the computer powering up after getting put into
hibernate mode.
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