Question Trouble activating my screen from hibernation ?

[GeirSol]

Hi!

I have a problem activating my PC screen from hibernation (win 8.1)
I try mouse and keyboard, but often no response.
I manually unplug/replug screen, sometimes this work, sometimes not.
Last resort is restart pc.

There is also an issue with screen going black for 1-2s with various frequency.

The GPU and screen is new.
I've replaced screen x2, no change

How should I best troubleshoot this?
What is most likely cause?


Specs:
Operating System
Windows 8.1 64-bit
CPU
Intel Core i5 2500 @ 3.30GHz 30 °C
Sandy Bridge 32nm Technology
RAM
6,00GB Dual-Channel DDR3 @ 668MHz (9-9-9-24)
Motherboard
ASUSTeK Computer INC. P8P67 DELUXE (LGA1155) 26 °C
Graphics
PHL 275E1 (2560x1440@59Hz)
2047MB NVIDIA GeForce GT 710 (MSI) 35 °C
Storage
223GB KINGSTON SA400S37240G (SATA-2 (SSD)) 33 °C
931GB Seagate ST1000DM003-1ER162 (SATA ) 19 °C
931GB Seagate ST1000DM003-1CH162 (SATA ) 22 °C
186GB Western Digital WDC WD2000JD-55HBB0 (SATA ) 21 °C
465GB Seagate ST500DM0 02-1BD142 USB Device (USB (SATA) ) 24 °C
Optical Drives
Optiarc DVD RW AD-7260S
Audio
RME HDSP 9632
Peripherals:
-Logitech wireless keyboard
-Iiglo wireless mouse

 

[Lutfij]

Make and model of the PSU in your build? Is this a prebuilt system? How do you have 6 GB's of ram? 4GB + 2GB? BIOOS version on your motherboard at the time of writing? I'd lean on your PSU having an issue powering up the system when it wakes up from hibernation mode. See if you can source a 450W reliably built PSU from a neighbor of friend and see if the system exhibits the same issue.

 

[GeirSol]

Thanks!
PSU: Chieftech Nitro 85
Both the PC used, hen added/modified some

BIOS
Brand American Megatrends Inc.
Version 3602
Date 31.10.2012

RAM
Memory slots
Total memory slots 4
Used memory slots 4
Free memory slots 0
Memory
Type DDR3
Size 6144 MBytes
Channels # Dual
DRAM Frequency 668.7 MHz
CAS# Latency (CL) 9 clocks
RAS# to CAS# Delay (tRCD) 9 clocks
RAS# Precharge (tRP) 9 clocks
Cycle Time (tRAS) 24 clocks
Command Rate (CR) 2T
Physical Memory
Memory Usage 52 %
Total Physical 5.97 GB
Available Physical 2.82 GB
Total Virtual 9.68 GB
Available Virtual 3.93 GB
SPD
Number Of SPD Modules 4
Slot #1
Slot #2
Slot #3
Slot #4

I don't have a spare CPU around. Can you explain a little on why you might think CPU underpower is cause? In hibernation I'd expect CPU to be very low taxed.