can overclocking the gpu cause dead pixels?

[supaidaaman]

my NEC 20WMGX just started getting dead pixels. First it was a green one, now im getting blues and greens. At least a new one each week. My gpu is overclocked, and I was wondering if this could cause dead pixels?

I put it back to stock and they were still there.

Strange thing is...When im at the windows splash screen I see 2 small green dots and one blue one, but they are in a different place than the dots on my desktop.

Also, while browsing web pages, the green and blue dots leave trails as I scroll.

I can change the LCD to 16bit mode and the dots go away. Its only in 32bit mode.


Has anyone ever sent one of these LCD's back, Ive had it for a little over a year now. Im extremely pissed off spending $600 for something that breaks down.

 

[pcslookout]

No it can not. I believe NECs warranty service is pretty good and if you used a credit card to buy your lcd monitor you should have a 4 year warranty! I think it takes about a week they said to fix a lcd monitor or to get another one. Call them up to find out their tech support is great even at 2 am !

 

[xtknight]

If the dots leave trails then they wouldn't be the monitor's problem. The LCD itself has no idea that it has any dead pixels, so it can't tell other pixels to change to their dead color. Therefore the dead pixel should just be stationary as you scroll if it was the monitor's issue.

I've certainly seen dots on the 2D desktop caused by a GPU OC'd too far (9800XT@90C+).

 

[supaidaaman]

hmm thanks for the suggestions, In the meantime I'll try and find a computer with a gpu that can support the high resolution of this LCD to make some tests..

 

[honestjohn]

delete

 

[xtknight]

Again, if they scroll and respond to command, it is not any physical problem with the LCD (not stuck or dead pixels on the LCD). Another good clue is if 16-bit mode fixes it. 16-bit uses less memory than 32-bit, and probably isn't using the portion of your memory that has been or is being corrupted by overclocking. The LCD itself doesn't know what bit depth you're running at, only the resolution and refresh rate.

 

[honestjohn]

Originally posted by: xtknight
Again, if they scroll and respond to command, it is not any physical problem with the LCD (not stuck or dead pixels on the LCD). Another good clue is if 16-bit mode fixes it. 16-bit uses less memory than 32-bit, and probably isn't using the portion of your memory that has been or is being corrupted by overclocking. The LCD itself doesn't know what bit depth you're running at, only the resolution and refresh rate.

xtknight is absolutely correct. Should have read your post (supaid) more thoroughly. Just read your thead title and not your symptoms. I would try a good driver clean-out and re-intsall if you haven't done so and run the card at default clocks.