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#21
Sorry I didn't see that you asked what graphics card I have. here is my entire system,
Intel Core i7-4790K Processor (8M Cache, up to 4.40 GHz)
ASUS Z97-A ATX DDR3 2600 LGA 1150 Motherboards Z97-A
Corsair CX Series 750 Watt ATX/EPS Modular 80 PLUS Bronze ATX12V/EPS12V 744 Power Supply CX750M
Corsair Vengeance 16GB (2x8GB) DDR3 1600 MHz (PC3 12800) Desktop Memory
Corsair Vengeance 16GB (2x8GB) DDR3 1600 MHz (PC3 12800) Desktop Memory To make a total of 32GB
(3) Seagate 2TB Desktop HDD SATA 6Gb/s 64MB Cache 3.5-Inch Internal Bare Drive
(1) Seagate 1TB Desktop HDD SATA 6Gb/s 64MB Cache 3.5-Inch Internal Bare Drive
EVGA GeForce GTX 970 SC+ ACX 2.0, DVI-I, DVI-D, HDMI, DP SLI Ready Graphics Card
Samsung 224T Monitor & Westinghouse L2410NM Monitor
Since this is happening every 1 hour maybe a Scheduled Task?
Open Start Menu, search for task schedule, run as admin.
When it opens on the right pane, Enable All Task History (if not already). Exit scheduler.
Now when some task runs it will show in Task Status in the middle pane.
When your monitor goes to sleep, come back here and see if you can spot any particular task has run.
I have also seen a case where one of the motherboard applications was causing this regardless of power options. Do you have any such application installed?
One final note: If Task Scheduler history won't work, you can check Event Viewer (Applications and Services Logs - Microsoft - Windows - TaskScheduler - Operational. These load a bit slow, so be patient.
Yes, it is worth to check if any scheduled task will show up. Also check the Event viewer part just in case. If these fail, I guess you can carry on with the repair install.
Good luck! :)