Did you keep your notes about Windows installation? Such as motherboard drivers and that BIOS setting to keep the USB power on and wake on interrupt? Remember I can't tell you exactly what it is with a custom machine. That's something for the folk that built the machine to supply.
I built this computer in March of this year and everything worked great. I had my power options set up so I could switch between high performance and power saver for when I'm not using it. Power saver was set up to turn off display and put the computer to sleep after 1 minute. I don't recall changing any of the advanced settings but maybe I forgot something.
I used to wake it up simply by hitting the space bar and everything would come back on. I just did a clean install of Windows 7 two days ago and since then when I choose power saver and it goes to sleep after whatever time I set it to, it no longer wakes up. Well, this is where I'm lost because it still makes the same noises like the fans spinning harder and all that but nothing appears on my monitor. At first I thought it had something to do with my monitor but I just realized that the lights on my mouse don't come on either. Which they used to before when I'd hit the space bar.
Any help would be much appreciated.
Windows 7 Home Premium
Processor: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
System type: 64- bit
Not sure if any other info is needed but please let me know if I missed something.