Webcam causes F@H GPU3 to crash!

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Webcam causes F@H GPU3 to crash!

Postby user123 » Thu Dec 06, 2012 6:20 am

Using Win XP SP3.

Noticed that Skype was causing numerous UNSTABLE_MACHINE and 'early unit ends' with my GT 430.
I managed to narrow it down to the webcam. Whenever the webcam was used, the GPU3 client would fail :evil: . Disabling hardware acceleration (setting the slider to disabling DirectX and Direct3D acceleration) solved the problem, but caused DirextX gaming applications to not work :( .

How can I disable hardware acceleration for just the webcam?
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Re: Webcam causes F@H GPU3 to crash!

Postby k1wi » Thu Dec 06, 2012 6:22 am

What webcam is it?
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Re: Webcam causes F@H GPU3 to crash!

Postby user123 » Thu Dec 06, 2012 6:29 am

Just an ordinary webcam using default Windows XP driver.
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Re: Webcam causes F@H GPU3 to crash!

Postby P5-133XL » Thu Dec 06, 2012 7:08 am

My suggestion is to pause the GPU client (right click on the systray icon) before running such activities and un-pause afterwards. Combining GPU Folding and other GPU activities can cause issues (typically in games, but it is not exclusive) and it is just plain better to avoid them.
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Re: Webcam causes F@H GPU3 to crash!

Postby user123 » Fri Dec 07, 2012 8:05 am

This problem occurred after I upgraded the motherboard and CPU (now: ASROCK H71M-DGS + Celeron G550, before: Gigabyte GA-G31M-ES2L + Pentium Dual Core E5200). I'm still using Windows XP SP3 and this GT 430 ( ... id=3611#ov).

I've tried a variety of Nvidia drivers (all except probably one are WHQL and for Win XP 32-bit):
  • 263.14 (not sure if this is WHQL, downloaded it from Gigabyte's website)
  • 270.61
  • 275.33
  • 280.26
  • 285.58
  • 295.73
  • 296.10
  • 301.42 (currently using this)
  • 306.81
All of them gave the same problem :evil: , or worse, caused the PC to crash with a split-second BSOD and reboot :( .

I've tried changing from PCI-e 2.0 x16 to PCI-e 1.1 x16 mode and it didn't work. :(

I tried running 'dxdiag' and disabling 'Direct Draw acceleration', and the problem went away. But that's going to make other applications like games not work. :(

On the old motherboard, this problem did not happen. The problem appeared after upgrading to the newer motherboard. Could the new PCI-e controller (built into the Celeron CPU) be to blame?

I have not tried reinstalling Windows XP yet.
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Re: Webcam causes F@H GPU3 to crash!

Postby bruce » Fri Dec 07, 2012 7:22 pm

It's hard to get WinXP support once Microsoft quit supporting it.

Are there any updates to DirectX/DirectDraw that have not been applied? Are there any chipset drivers that might help?
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Re: Webcam causes F@H GPU3 to crash!

Postby Rattledagger » Fri Dec 07, 2012 11:26 pm

Are you sure it's the web-cam giving you problems and not the sound?

I also had FAH crashes a couple years ago, but this was the cpu-version crashing most commonly in a game. These crashes was tracked to using hardware-accelerated sound on the mainboards built-in sound-system.

To verify if this is your problem is easy, you can download the FAH StressCPU to not trash any FAH-wu's in the process, see this thread for downloading StressCPU viewtopic.php?f=14&t=430
1: Start StressCPU.
2: In Dxdiag, just go to the soundcard-tab, and start testing the various sounds.
3: After multiple test-sounds, you'll come to the 1st. hardware-accelerated sound. Immediately after starting to play this, StressCPU will terminate with a calculation-error.

In case it is the sound crashing FAH, disabling hardware-accelerating on sound is possible, and this shouldn't have so large impact on other things.

Note, this wasn't under XP but Win2003, but for most things and atleast for the sound-part it's using the same driver. I've not had the same problem under later windows-OS.

In case hardware-accelerated sound does not crash FAH, you've atleast ruled-out this part, on a test only taking a couple of minutes to run.
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