Solved Led screen switches off/loses signal at random

September 4, 2012 at 09:04:13
Specs: Windows 7 32 bit, Intel Celeron 430 1.8GHz, 4GB RAM
My girlfriend's LED screen switches off at random while she is busy working on it. It is doing it more and more often and I don't know what else could possibly be the cause. Her PC is practically brand new and she has a descent graphics card. ALL NEW!! There is not a spec of dust on any of the components. ALL system fans (including the graphics card fan) is functioning. The problem is definitely not "overheating". The tower remains on, but signal to the LED screen seems to disappear. We have tried both VGA cable and DVI-D cable, but the problem persists. I have set the screen and PC power options to NEVER SWITCH OFF. I'm at wits end here...What else could be the problem?

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✔ Best Answer
September 5, 2012 at 10:10:36
I went the route of swopping our graphics cards around and re-installed the drivers. It seems to be working fine now. My girlfriend is just too happy that she has a better graphics card now, a GT 440. I'm not even going to try and swop them back again as I'll probably just jump through the roof if the problem comes back again. LOL, we bought her CPU in January this year, btw. :) Anyway, thanks for the input. Much appreciated.


#1
September 4, 2012 at 09:06:46
Try the monitor on a different computer. That will tell you whether it's the monitor or the graphics card causing the problem.

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#2
September 4, 2012 at 10:29:40
I've plugged her screen into my PC and vice versa. Problem still exists on her side. Her screen connected to my PC - Works Fine! My screen connected to her PC - Still the same problem...I have to switch her PC off in order to get the screen to display something again. We're able to work on the PC for a little while, but then it just loses signal after a while. Wiggle the mouse - nothing! Punch keys on the key board - nothing. Toggle between Analog and Digital setting on the screen - Nothing. No display! Do you think I should swop our the graphics cards around and see if this happens on my PC?

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#3
September 4, 2012 at 11:31:08
I swopped our graphics card's around and the problem still persists on her PC, which tells me that it is not the graphics card. If this is a hardware issue, then it must be coming from the motherboard or CPU... What else can I do to determine what the problem is? Is it possible that it has something to do with software config? Something that I haven't already checked? OMG, I am going to cry...I need to fix this problem...

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#4
September 5, 2012 at 05:45:18
Try following your own advice, afterall, you said it fixes 99% of all problems, lol.

If I were you I would start by pulling my PC apart, clean every component (RAM, Heat Sinks, Fans, Graphics Card, the works). If you don't have a blower, then use a fine haired paint brush. Put your PC back together and make sure that everything is connected properly.
- Switch PC back on and check if the cleaning helped. If not;
- Try re-installing Windows. A fresh install of windows normally sorts 99% of your problems out.

Since it's "practically brand new", take it back or file a warranty claim. If you start poking around inside or wiping the OS, you'll most likely void the warranty, then she'll really be screwed. However, I find it hard to believe a system running a 5 yr old Celeron 430 is "practically brand new".

http://ark.intel.com/products/29735...


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#5
September 5, 2012 at 10:10:36
✔ Best Answer
I went the route of swopping our graphics cards around and re-installed the drivers. It seems to be working fine now. My girlfriend is just too happy that she has a better graphics card now, a GT 440. I'm not even going to try and swop them back again as I'll probably just jump through the roof if the problem comes back again. LOL, we bought her CPU in January this year, btw. :) Anyway, thanks for the input. Much appreciated.

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#6
September 5, 2012 at 10:12:37
Just for the record, is it possible for a person's graphics drivers to be the cause of a screen switching of at random? Do you really think that was the problem?

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