undesired automatic startup

[esattamente]

Over the past 10 days or so, my system has been starting up every night at 1
AM, following a shutdown via hibernate earlier. (Prior to this, I've been
shutting down via hibernate for many months without any automatic startup.)
In the morning I find it sitting at the logon screen. I can't locate any
scheduled activity that would cause this. But anyway, what software has
permission to start up the system?

System: XP Pro SP 3

Any ideas out there?

 

[JS]

Check "Wake On Lan" settings

For more info see:
http://www.intel.com/support/network/sb/cs-008459.htm

 

[Ken Blake, MVP]

Over the past 10 days or so, my system has been starting up every night at 1
AM, following a shutdown via hibernate earlier. (Prior to this, I've been
shutting down via hibernate for many months without any automatic startup.)
In the morning I find it sitting at the logon screen. I can't locate any
scheduled activity that would cause this. But anyway, what software has
permission to start up the system?

System: XP Pro SP 3

It's very likely a "Wake on ..." setting in your BIOS. Go into the
BIOS setup program and check to see if any of the "Wake on ..."
settings are turned on.

 

[esattamente]

Thanks for the suggestions re BIOS wake up settings. It is a Phoenix
AwardBIOS dated 11/6/03. Under Power Management Wake Up Events, most of the
settings are disabled. The exceptions:
IRQ [3-7, 9-15], NMI - enabled
USB KB Wake Up from S3 - enabled
PS2KB Wake Up from S3 - hot key

The keyboard connector is a PS/2. Do any of these settings sound possibly
relevant to the problem? (Secondary question - is it worth the effort to
update the BIOS?)