This document might help.
I have a setup of M3-ATX with Intel D510MO running on Windows 7.
My carpc cant seems to go into sleep mode (not hybrid sleep). After some troubleshooting and removing all USB, I realise that the M3-ATX will cut the power in about 10-15 sec after the sleep is initiated.
It seems that M3-ATX do not recognise that the system is going into sleep and decided that there is a error and decide to cut the power for some reason.
The same goes with a Windows XP setup.
Can anyone share if they have a M3-ATX setup that works with in sleep mode (not hybrid sleep) or an resolution to the problem.
It has got nothing to do with the timing. I have tried all the 4 modes and even customise the off time. Still M3-ATX cut off the power when the carpc tried to go to sleep.
I have manually put the carpc to sleep thru the start menu and that works. But when it comes to the initiation from IGN, it will fail.