irrlicht examples make my graphic card scream in pain

JAhU · Post by **JAhU** » Thu Jan 01, 2009 10:56 pm

While checking the examples included with irrlicht I encountered a weird problem : some of the demos made my computer emit high pitch noise. I started checking speakers and monitor but it came out to be my graphic card. Further research pointed possible source of this problem. I'm a happy owner of a gf8800GT and this card can run all of the examples with ease, but some of them run with insane fps, reaching a few thousands. Such fps seems to be very unhealthy for my graphic card (probably for many other cards too).

My point is that those examples can be dangerous to many modern graphic cards. They need an upper fps limit.

I thought it may be important and I couldn't find any old threads about this problem, so thats why I decided to make a new topic.

Ion Dune · Post by **Ion Dune** » Fri Jan 02, 2009 12:27 am

http://www.google.com/search?hl=en&q=88 ... h&aq=f&oq=

twilight17 · Post by **twilight17** » Fri Jan 02, 2009 1:13 am

I've read that if the FPS was above.. 300, or maybe it was 3000? That it would make a noise like that.. There was a youtube video too.

BlindSide · Post by **BlindSide** » Fri Jan 02, 2009 2:06 am

Ion Dune wrote:http://www.google.com/search?hl=en&q=88 ... h&aq=f&oq=

http://www.letmegooglethatforyou.com/?q ... itch+noise

twilight17 · Post by **twilight17** » Fri Jan 02, 2009 4:44 am

BlindSide wrote:
Ion Dune wrote:http://www.google.com/search?hl=en&q=88 ... h&aq=f&oq=
http://www.letmegooglethatforyou.com/?q ... itch+noise

That is the most amazing website ever created. Ever.

Spkka · Post by **Spkka** » Fri Jan 02, 2009 8:33 am

This has nothing to do with irrlicht im afraid, i got the 8800 GTX myself and when i tried the examples, the per pixel lighting one for example - i could hear a really high pitched sound.
I didn't really look at the FPS thinking this was just the fan working normal, since i normally got sound on when i play games and i had no sound on when i checked the examples.

JAhU · Post by **JAhU** » Fri Jan 02, 2009 9:51 am

I hope its not something dangerous to the card. It only happens with very high fps, on high load I don't get any noise.

P.S. Is it possible to set a fps limit using irrlicht?

lucifer1101 · Post by **lucifer1101** » Fri Jan 02, 2009 9:58 am

remember google is your friend

but anyways here read this http://www.gamedev.net/community/forums ... _id=457590

Please note that this is raw C++ and DirectX programming and may not be compatible with irrlicht..

Ion Dune · Post by **Ion Dune** » Fri Jan 02, 2009 7:27 pm

What about vsync?

Dark_Kilauea · Post by **Dark_Kilauea** » Fri Jan 02, 2009 9:57 pm

My card also does this: NVidia GeForce 7800 GT

However, it does this with all stressful OpenGL and DirectX applications, including the samples from Ogre3D and Horde3D. I traced the problem down to the internal wiring to the front of my computer (for the front ports, especially the audio ones) picking up electromagnetic radiation from my graphics card. Adding a little extra shielding fixed the problem.