Monitor randomly enters power save mode within 3 minutes of startup

cluelesshippo

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Since today my custom built computer has been having issues with all the attached devices.

I left my computer on so that I could watch a stream on twitch.tv, I paused the stream and left my computer running without being used for about 3 hours ( the only thing running was google chrome and like 3 tabs). Upon coming home I saw that my computer had entered power saving mode, that is the lights were all yellow and the screen was black but I couldn't get it to wake up again. On top of this, my mouse and keyboard were also shut off (none of the LED's were lit on either device) and no sound was playing (I had left the stream unpaused the whole time). The only thing I could do was to hold down the power button of my computer and restart it like that. Once I restarted it, everything was working just fine; windows started and I could log in and do things for around 10 seconds to 3 minutes until my monitor "entered power saving mode" again, and this would happen every time I restarted my computer. I also took note that a few seconds after my monitor shut off, my keyboard, mouse, and sound would all stop working while the actual computer itself kept running (The fans were still on, the LEDs from the motherboard were still lit.)


I've looked through many threads on various forums and the only problem they address is the monitor shutting off randomly, but I haven't found a thread that deals with the other devices as well. Another issue is that if I do have to change some settings on my computer I only have like 30-90 seconds to do so once I log in.

This problem happened before as well when I had an i5 2600k processor and an EVGA P55 LE motherboard. I recently switched to my current motherboard and processor within the last month and no problems were had until today. I tried to see if swapping my 750W Corsair Power Supply for my old 500W Thermaltake Power Supply would fix anything, but it didn't.

I don't have another computer to use so this is infuriating. I can try to clarify whatever is unclear but I'm honestly not very computer-smart beyond putting hardware together.
 

My Computer My Computer

At a glance

Windows Home Premium 64 bitIntel i7 4790k6 GB CorsairATI Radeon HD 6770
Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
Windows Home Premium 64 bit
CPU
Intel i7 4790k
Motherboard
Msi Z97 G45
Memory
6 GB Corsair
Graphics Card(s)
ATI Radeon HD 6770
Hard Drives
Western Digital Green 1 TB WD10EZRX
64 MB Cache
Antivirus
none
Browser
Chrome

My Computer My Computer

At a glance

Windows 7 Ultimate x64 SP1AMD Phenom 2 1090T2x8GB Kingston HyperX Fury Black 1600Mhz Unga...MSI GTX 970 Gaming 4G
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Build
OS
Windows 7 Ultimate x64 SP1
CPU
AMD Phenom 2 1090T
Motherboard
Gigabyte GA-890FXA-UD5
Memory
2x8GB Kingston HyperX Fury Black 1600Mhz Unganged
Graphics Card(s)
MSI GTX 970 Gaming 4G
Sound Card
Realtek On-Board HD 7.1 Audio / Logitech G35
Monitor(s) Displays
3xAcer GD245HQ
Screen Resolution
1920x1080
Hard Drives
Samsung 850 Pro 512GB SSD - OS /
WD Caviar Black SATA 3 - 1 TBx2 - Dynamic RAID 0 /
WD Caviar Green SATA 2 - 640GBx2 - Dynamic RAID 0 /
WD Caviar Green SATA 2 - 640GB - Internal Backup /
Seagate Barracude SATA 3 - 3TB - External Backup/ Sync
PSU
HighPower 1000W
Case
Cooler Master HAF 932
Cooling
Noctua NH-D14
Keyboard
Logitech G19
Mouse
Logitech G500
Internet Speed
100/4 Mbit Cable (100GB quota)
Antivirus
ZoneAlarm Extreme Security / MBAM Pro / MBAE Free / SAS Free
Browser
IE 11 - Firefox - Chrome
Other Info
Logitech F710/ G27/ G940/ Z5500 // TrackIR 5 // Nvidia 3D Surround Vision
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