This is not limited to ICH7 chipsets. My board has an ICH8 chipset and I've tried a (non Asus) board with ICH10 Chipset. All exactly the same behaviour. To be exact I've bought that ICH10 board to get rid of this, no luck...several ICH7
Excerpt WakeOnLan there is nothing to try. The rest did not change any HTPC useful things. Ahh Power State after AC lost is something to look at. If you often have scheduled recordings it's better the HTPC starts after AC loss. So there are limited missed recordings.What i am trying next is using the BIOS function to wake up by several events.