I recently installed GTX670 SLI in my machine and run some benchmarks to test it is all working.
Afterwards, I did a clean format complete re-install with Windows 7 Ultimate x64 SP1 with updates. It appears now when I shut down my machine, windows turns off the display and seems to shut down but does NOT turn off the fans/LEDs on my computer.
I then re-installed a clean windows 7, installed my drivers ONLY (no windows updates) and it shuts down/turns the computer off fine.
Not sure what is going on, some update must be causing this? Can anyone help me?