I was sleeping today, when I woke up I found there was a power outage, the night before, I left the computer on, I have it configured to go to sleep in 30 minutes of inactivity, so it obviously went to sleep, when I came to computer the led on the power button was blinking indicating that it was sleeping, but I was confused, there was a power outage and I saw my computer led status saying it was sleeping, for further tests, I plugged in to the ac a multimeter, indicating there was 6 volts ac, yes there was 6 volts only during the power outage.
When power was restored, I powered my computer and sure, everything was as if it went to sleep.
So I'm considering 2 possibilities:
1. The system could have been feeding of the energy of the capacitors in the psu
2. The psu could have directed those 6 volts ac to keep on the ram with power and power the led up
What do you think?
BTW:its a dell dimension 9200