Monitor noise

[alote000]

Hello! I checked some threads with the same title, but they were all about a noise that they heard! I have another problem:

I don't heard the noise, I see it. Sometimes my screen goes all fuzzy, but it's only for a while, then comesback to normal.

I already check the temp of the GPU but it seems to be normal: in idle is about +40c, and when I play is about +50c. It never reach too high temps like 70.

I have a HD6950 2gb oc edition (without oc), my PSU is 650w (Sentey), and the monitor's native res is 1360x768 (Samsung Syncmaster 933), and I use the native res for all games without AA nor any weird thing.

So, what could it be? Some driver is malfunctioning? The card isn't old, but the monitor is at least 2 years..

PS: I learnt english from games, so don't expect too much..

 

[geofelt]

Your symptoms are most like an impending failure of the monitor.

Possibly, you are seeing some sort of electrical interference.
Perhaps an A/C unit coming on, or some other abberation of the electrical source.

See if you can't test with a known good monitor.

 

[alote000]

I tested with my TV, but just for a while, and this happens sometimes. Also I have one of those VGA monitor, but it still works. I'll try again on the TV and the other monitor just in case.

 

[geofelt]

I tested with my TV, but just for a while, and this happens sometimes. Also I have one of those VGA monitor, but it still works. I'll try again on the TV and the other monitor just in case.

Good, you have probably excluded a monitor failure as the cause.

The next possibility is a heat problem.

First, verify that you have no dust buildup in your cpu cooler or graphics card fan.
Verify that both cpu and gpu fans are spinning properly.

Try running with the side covers of your case removed.
Direct a house fan at the innards.
If that solves the problem, look to a case cooling solution.