Using Windows 7 with GUIMiner. I've set most of my power saving options to sleep "never". However I still have "Turn off the display" set to 20 minutes and my computer also goes into locked mode. When I wake up the display and immediately look at GUIMiner it shows the Mhash rate as around or below 200 Mhash/s. Then within a few seconds it goes back up to it's normal 240 Mhash/s, where it stays if I am using my computer.
So now I'm wondering if I'm not getting my full hash rate when I leave my computer running and I'm not actively using it. Are there some specific settings I should have in windows & power options or elsewhere to ensure I'm getting my full hash rate? Is there a way to know what your hash rate is when your display is off?