I was having some unrelated issues and installed a new ASUS Sabertooth Z97 Mark 1 motherboard. It solved the issues but now I have a problem with my monitor ignoring the time set in power options. I didn't reinstall Windows 8.1 with the new motherboard opting instead to just let Windows discover and setup the new hardware which it did. Everything is working normally except my monitor now shuts off after only one minute. I checked power options and had the computer and monitor set to shut down after 20 minutes. The CPU enters sleep mode at the appointed 20 minute time. Advanced options for the plan are also set at 20 minutes. I've tried resetting the times and even resorted to the default settings but the monitor keeps shutting off after one minute. It lights up immediately with a mouse wiggle but is irritating. I've looked all through the UEFI and device manager but can't find anything that would contribute to or resolve the issue. Any ideas what the problem might be? There is nothing in the monitor functions menu other than the usual image quality settings for light, contrast, etc.