Wake up Computer before shutdown

[Anonymous user]

Hi,

I consider buying one of these UPS models BX650CI-AS , BK650AS or BK500EI .

My computer usually goes to sleep after some idle time of inactivity. I need the UPS to wake up the computer and initiate a graceful shutdown once the power is off.

I was reading that some models will not wake up the computer via the USB interface and the UPS will drain the battery and shutdown without shutting down the computer. I need a 300 or 400 W UPS for my system. Could someone recommend a model that would be able to wake up the computer. I have a new motherboard and I am using Windows 7 X64.

Thanks in advance for your help