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Windows 7: Laptop screen goes black and everything freezes


28 Oct 2012   #1

windows 7 x64
 
 
Laptop screen goes black and everything freezes

Hi everyone,

I have a Fujitsu Siemens SA 3650 laptop and I am experiencing the following problem.
First of all my touchpad had stopped working so i took the laptop to the service provider and they changed the touchpad. ( I am refering this so as to mention that they opened the laptop).
After that i noticed that randomly and rarely my laptop screen goes black (not total black because i see a white light into the black) and the pc freezes completely.
I have to press the power button in order to turn off the computer and when i turn it on its ok for a few hours untill it freezes again.
If I have an mp3 playing the music stops when the screen goes black so the pc freezes completely.
The CPU temperature is normal around 50 C. This happenes no matter what i am doing.
My laptop is still under guarantee so the cost will not be a problem, but i im asking here in order to know what the problem might be. Did they do something wrong at the service while opening the laptop?

Thank you in advance

My System SpecsSystem Spec
.

29 Oct 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64Bit
 
 

Welcome

Can you tell us what antivirus are you using?

Upload a screenshot of your hard disk using crystal disk info:For monitoring the heat/celsius of the system, use Speccy or HWinfo:Run the System File Checker that scans the of all protected Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:Please upload your msinfo32.nfo file. To get this:
(1) Click on the Start
(2) Type msinfo32 into the Search programs and files box
(3) When it opens, go to File, Save
(4) Save as msinfo32.nfo and save in a place you will remember
(5) Let it finish the process of gathering and saving the system info
(6) Right click the .nfo file, click send to compressed (zipped) folder
(7) Upload the .zip file here
My System SpecsSystem Spec
29 Oct 2012   #3

windows 7 x64
 
 

Hi,

thank you very much for your reply.

- I am using Eset Antivirus 5.0.95 version.

- I ran System File Checker and it did not report any problem.

Attached you will find all the info you asked me.

Thank you in advance
My System SpecsSystem Spec
.


29 Oct 2012   #4

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

Hi jo,

I took a quick look at the System info you supplied and noticed that Furmark.exe crashed.

Look in control Panel -> Features & Programs for furmark or Geeks3d Furmark.
If it is something you installed and use, see if there is an update.

If you don't recognize it and have never used it yourself, it is possible that the service center placed it on your machine to test it. Uninstall it, reboot and see if that helps.
My System SpecsSystem Spec
29 Oct 2012   #5
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Hi jo65947 and Welcome to Seven Forums.
I suspect the "techs" have done something inside the case to foul up the graphics. Since it is under warranty I would waste no time on it and take it back for replacement.

Slartybart discovering that Furmark had crash points to that.
My System SpecsSystem Spec
30 Oct 2012   #6

windows 7 x64
 
 

Hi everyone and thank you for your help.

I installed Furmark after i noticed the problem, in order to check/stress my video card.
PC crashed (black illuminated screen with PC frozen) while i was stressing my video card but in the last times it has not. The problem did not begin by installing FurMark.

It kept crashing while it was idle. The big problem is that it has not crashed the last one day at all.

So I am confused, I would prefer it to keep crashing in order for the techs to identify the problem.
I am waiting for it to crash or keep crashing more often in order to be able to send it back.

Any more suggestions?

Thanks in advance
My System SpecsSystem Spec
30 Oct 2012   #7
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

See if you can run Furmark at all.
My System SpecsSystem Spec
30 Oct 2012   #8

windows 7 x64
 
 

The last 3 times (today) I ran FurMark Burn-in test (stability test) in 1280x800 resolution, the laptop froze and I had to shutdown the pc by pressing the power button.
In the last one the screen went black too and the pc froze as well.
Is this normal?
I am asking because my video card is ATI RAdeon HD 3200 (weak), maybe its too weak for the test?
My System SpecsSystem Spec
30 Oct 2012   #9
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

I think the GPU is bad, Furmark should run at lower settings. No, that's not normal.
My System SpecsSystem Spec
30 Oct 2012   #10

windows 7 x64
 
 

Can i run it in lower settings or it runs automatically?
My System SpecsSystem Spec
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 Laptop screen goes black and everything freezes




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