PC starts automaticly after 1 minute
 

After I installed Mandrake 9.0 I have this mysterious problem.

After shutting down, halting etc. the PC starts up after about 1 minute without me doing anything. There is a 3Com nic inside wich has WOL but the cable for WOL is not connected. It also happens when all the other pc in the lan are off so there should be no wake up call at all.

After installing Suse 8.1 there is no such problem. I suppose I configured something in Mandrake (or by default) but don't know what.

Did anyone have the same problem or does someone know where I went wrong ?

It happend with me once and I checked everythin, My motherboard has a option to turn on at a certain time, Thats what the problem was for me.

Check motherboard BIOS power management settings.

If your computer comes on when power is restored after an outage, you might wanna try jamming the power cord back into the power supply. It may be loose, but not actually forking up when you are using it. It happens sometimes. You might also wanna try Suspend mode and maybe replacing that motherboard. I never heard of it so I'm just throwing out possible fixes.