So my problem is that I have upgraded to Windows 10, on a system previously running Windows 7. My system, since Windows 10 has been out, has been unable to wake successfully from sleep.

What happens is that I can "wake" it with the mouse and keyboard, it beeps, revs, all that jazz, but then it hits its idle state and the monitor never detects a signal during this time period. The only way to resume function is to hold the power button and restart.

I contacted Microsoft, and they tried to suggest I pay for support when their OS is responsible for breaking this functionality, not user configuration. I know this, because it didn't work on the vanilla install of Win10 either, despite working flawelessly on 7.

Now, for the details:
OS: Windows 10 64x Pro
Mobo: Asus P8Z77-M
RAM: Corsair Vengeance 8GB 2x 8-8-8-24 1600mhz
Intel i5-3570K
Evga-Build NVIDIA 660ti 2GB DDR5
PSU: Corsair 650W... can't remember precise make.

What I have tried:
- Clean install
- Restore Point
- Manually setting graphics PCIE in BIOS
- Win10 Compatible BIOS updates (done with two separate BIOS's post-win10)
- Chipset Updates (only one Win10 one released)
- Windows Updates (Current version)
- All driver Updates
- Edit Power plans for sleep and Dev Manager enabled virtually all devices with the option to wake the computer
- Cables switched out, all are functional
- SFC /scannow

Yea.... so that's where I stand. As you might expect, I'm running out of ideas. Thank you very much for any assistance.