Screen shuts down, Computer stays on

Hewlett-packard / Hpe-490uk
October 21, 2013 at 06:08:57
Specs: Windows 7, 2.934 GHz / 8151 MB
Hello everyone.

Read a lot on this problem, but as you can imagine, so much info can be overwhelming so I was wondering if someone could help me out.

basically, the problem:

In the past month, my monitor started shutting down (usually during some "act" or when I am playing a game). For instance, launching a game would cause my monitor to turn off.

When the monitor turns off, the PC stays on and the fan starts to work very loudly.

Times this happens is random. Sometimes I have the computer on for 8 hours, play 1 game, then close it and when I try to open it again, it happens.

I have replugged everything, checked for drivers updates and on the next crash will use Memtest86 to check the CPU.

I also installed SpeedFan to check temperatures. Right now:
GPU Temp - 72C
Local - 47
Core 0-4 - 56C-59C
2 Fans, One working at 1300RPM, other at 1000RPM.

I am assuming something is wrong with overheating or something like that. Is it likely to be the motherboard or the graphics card or something else entirely?

p.s. no idea if this is any help, I read somewhere to "check" if numlock button turns on when this happens - it doesn't.

Any help is appreciate.


- Monitor shuts off, PC stays on
- Fan starts working loudly

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October 21, 2013 at 06:18:43
Without knowing the make/model, I'd suggest your video card is going bad.

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October 21, 2013 at 06:22:05
Model: Hpe-490uk
OS: Windows 7
CPU/Ram: 2.934 GHz / 8151 MB
Video Card: NVIDIA GeForce GTX 460

The video card was purchased separately about 2 years ago. Has been working fine until now.

Is there any way I can check if it's the system, video card, memory or something else?

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October 21, 2013 at 07:09:43
I I have found a program called Fur Mark and decided to run it to test the video card. After a couple of minutes of running my computer did the same thing. Does this necessarily mean the problem is in the video card?

Can I clean it myself and would it help?

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Related Solutions

October 21, 2013 at 08:10:18
It's a fairly good indication. I suppose it could be the motherboard. Cleaning it might help, but I'm not sure how dirty it could have gotten in 2 years.

If you're over-clocking the card, I suggest you stop. If you're not, I suggest you back it down and see if that improves things. I'll typically see this in laptops, where the GPU has gotten so hot that it managed to partially desolder itself. In those cases, I've taken to baking the boards to reflow the solder. There are guides out there on baking laptop motherboards, you can modify those guidelines to apply it to the video card. If you try baking, try it outside. Solder fumes can be toxic.

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October 21, 2013 at 08:19:02
Thanks for the response.
How does one "back down" a card? I never used over clocking.

Also, just ran memtest. No errors found.

Guess that means the graphics card. what would be wrong with the motherboard if it is that?

I don't think I'll go as far as that to try and fix it.
I simply don't know enough about video cards to do that

PS as I was installing a new driver, my computer has done the same except now it also began to beep every 20 seconds l. Does that help determine the problem ?

message edited by Violander

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October 21, 2013 at 08:50:20
To under/over-clock an nVidia card, download nTune. That should let you specify the GPU and video memory speed.

Personally, I suggest you get a second video card and test against that. If the problems go away, you know you found the culprit. If the problem persists, it's probably the motherboard. Then at least you'll be able to SLI the dual GTX 460's on your next machine.

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October 21, 2013 at 14:39:35
Temporarily reverting back to the inbuilt graphics module might prove something.

Always pop back and let us know the outcome - thanks

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