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Windows 7: Why my screen is having spontaneous blackouts?

21 Feb 2020   #1
Amina Alomari

Windows 7 ultimate 64
 
 
Why my screen is having spontaneous blackouts?

Hello,

I have bought my costum built gaming pc 2 years ago. The GPU is nvidia gtx 1070.
Recently i am facing a problem where my screen suddenly turns to black when i am playing or even when i am doing nothing at all.
These blackouts are about 1 second long. Sometimes longer that my monitor shows "entering safe mode" sign ( as if it is not receiving a signal like when i turn off my pc). And this happens quite a lot.
Another thing i noticed is the appearance of blue horizontal lines temporarily on the screen sometimes.

My monitor is Dell and its blugged through a DVI-d cable.

My gpu driver is the second latest update.


Can you please guide me to the stem of this problem and how can it be solved?

Your help is much appreciated.
My System SpecsSystem Spec
.
21 Feb 2020   #2
NoN

Windows 7 Professional SP1 - x64 [Non-UEFI Boot]
 
 

Looks like you have power supply issue and/or micro cuts from the domestic electricity provider.

One solution is to get an UPS station to have better stability and in case of cut-off you could always safely turn off the computer. and also is to check all the wires of your computer if none is badly plugged in onto the Power Supply to the motherboard and graphics card.

See if your power supply gives enough power to your computer :Power Supply Calculator - PSU Calculator | OuterVision

Could be the graphics that force the PC shutdown because of a hardware failure that not have enough power while your gaming and when entering in sleep mode
My System SpecsSystem Spec
21 Feb 2020   #3
Amina Alomari

Windows 7 ultimate 64
 
 

Quote   Quote: Originally Posted by NoN View Post
Looks like you have power supply issue and/or micro cuts from the domestic electricity provider.

One solution is to get an UPS station to have better stability and in case of cut-off you could always safely turn off the computer. and also is to check all the wires of your computer if none is badly plugged in onto the Power Supply to the motherboard and graphics card.

See if your power supply gives enough power to your computer :Power Supply Calculator - PSU Calculator | OuterVision

Could be the graphics that force the PC shutdown because of a hardware failure that not have enough power while your gaming and when entering in sleep mode

Thanks for the reply.
Just to edit. My pc doesnt shut down but the monitor turns off somrtimes for 3 to 4 seconds and shows "entering power safe mode" then it gets back on. The system keeps on where i left.
My System SpecsSystem Spec
.

21 Feb 2020   #4
NoN

Windows 7 Professional SP1 - x64 [Non-UEFI Boot]
 
 

My bad...so it is question of parameter in the Power options, you can troubleshot here: Sleep States - See Available Sleep States
and also: Power Options and Sleep Mode Problems | Vista Forums

Your display turns black because it set to turn off after a certain amount of time, this basic setting to save your screen monitor...: Display - Turn Off in Windows | Windows 8 Help Forums
My System SpecsSystem Spec
21 Feb 2020   #5
oscer1

 

sounds to me your having over heating issue or maybe just need to update the driver. I would start by power down computer unplug from wall and blow out all bust from fans and heat sink with compressed air clean the whole computer inside.
My System SpecsSystem Spec
21 Feb 2020   #6
Marie SWE

2xWin8.1, 1xWin7HomeX64, 2xWin7Prox64, 1xWin2008R2server. 1xXP Pro, 1xWin 2k, 1x98SE,3.11 LinuxLMDE3
 
 

One thing you can try is to start the computer in safe mode and use the computer for a while. If the problem with the screen occurs in safe mode, then it is probably the screen itself that is the problem. If the problem doesn't occur in safe mode then it can be the driver or worst case scenario, the graphic card in high resolution.
If the problem doesn't occur in safe mode, try to install an older driver version that you know works and see if it solves the problem.
My System SpecsSystem Spec
21 Feb 2020   #7
iko22

Windows 7 x64, Vista x64, 8.1 smartphone
 
 

Hello Amina
Quote   Quote: Originally Posted by Amina Alomari View Post
Hello,

I have bought my costum built gaming pc 2 years ago. The GPU is nvidia gtx 1070.
...
These blackouts are about 1 second long. Sometimes longer that my monitor shows "entering safe mode" sign ( as if it is not receiving a signal like when i turn off my pc). And this happens quite a lot.
Another thing i noticed is the appearance of blue horizontal lines temporarily on the screen sometimes.

My monitor is Dell and its blugged through a DVI-d cable.
Did you get the monitor with the computer? What size screen is monitor (in pixels)?

Can you connect the computer to monitor via VGA or HDMI? Make sure the monitor cable is firmly pushed into position, and cannot spring out, or dislodge.
My System SpecsSystem Spec
.
29 Feb 2020   #8
Amina Alomari

Windows 7 ultimate 64
 
 

Quote   Quote: Originally Posted by oscer1 View Post
sounds to me your having over heating issue or maybe just need to update the driver. I would start by power down computer unplug from wall and blow out all bust from fans and heat sink with compressed air clean the whole computer inside.
Hello,
I unplugged everything, cleaned the pc from inside, made sure that all fans are working peoperly.
Then replugged my pc.

The issue is reduced a lot. The black outs happen much less frequently.

However i noticed that my Gpu tweak software which shows me the parameters of my gpu when i play is showing that "memory clock, MHz is maxed most of the time reaching 8008 which is the maximum ..
Is this related to the issue?
My System SpecsSystem Spec
29 Feb 2020   #9
Amina Alomari

Windows 7 ultimate 64
 
 

Quote   Quote: Originally Posted by iko22 View Post
Hello Amina


Did you get the monitor with the computer? What size screen is monitor (in pixels)?

Can you connect the computer to monitor via VGA or HDMI? Make sure the monitor cable is firmly pushed into position, and cannot spring out, or dislodge.

Yes the monitor came with the pc 3 years ago. Its dell e2414h. The resolution is 1920*1080.

I can not connect it right now as it comes only with dvi-d cable.

Do you think thats necessary?
My System SpecsSystem Spec
01 Mar 2020   #10
iko22

Windows 7 x64, Vista x64, 8.1 smartphone
 
 

If you had VGA cable, you could connect that. As you do not, then you cannot find out.

The fact that cleaning the computer has reduced the problem, shows that dust could be the stem of the problem.
Try using your computer with case lid off, or case side panel off. More air will circulate with lid off, thus cooling the computer. It will be noisy sitting next to it, but see if that stops the screen spontaneous blackout occurring.
My System SpecsSystem Spec
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