What I did till the moment:
1) in BIOS setted "Always enable" for embedded GPU
2) in BIOS setted "Initialize onboard GPU first".

Monitor attached to embedded GPU. nVidia driver sees only first, embedded GPU and doesn't see secondary GPU (8500GT). So it seems I can't "enable PhysX" on secondary GPU.

Any suggestions? Should I attach another monitor to secondary GPU or some software-only solutions?

Both GPUs are nVidia's ones so it should be possible to enable both, isn't ?

Second monitor should enable the computer to find the GPU, then you might want to make a dummy plug for it if you want to use the monitor elsewhere.

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Second monitor should enable the computer to find the GPU, then you might want to make a dummy plug for it if you want to use the monitor elsewhere.

Thanks.
How do you think, is it enough to plug single monitor to secondary GPU leaving first one w/o monitor until OS (Windows XP btw) booted and then re-plug it to first GPU? Or I should plug to both GPUs simultaneously ?

Lots of monitors have both an analog and digital input nowadays and let you switch, so you might be able to hook just one monitor up to both gpus.

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Lots of monitors have both an analog and digital input nowadays and let you switch, so you might be able to hook just one monitor up to both gpus.

Unfortunately that monitor has only single input (that's why my question worth time to type it, in other case direct experiment would be much easier ;) )

I have a GTX260-216 at 1st PCIe (1.0 x16) and a 6200 LE at 3rd PCIe (1.0 x4 - only here display connected).

I needed to extend the WindowsDesktop to both, that CUDA on the GTX260-216.

WinXP 32bit, nVIDIA_driver_190.38 .


Maybe, extend the WindowsDesktop and after reboot 'new hardware found' for to install the nVIDIA_driver?

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Maybe, extend the WindowsDesktop and after reboot 'new hardware found' for to install the nVIDIA_driver?

Could you describe how to extend desktop in my case?
Windows "sees" only embedded GPU, I see no options to involve second GPU into desktop drawing...

What I did till the moment:
1) in BIOS setted "Always enable" for embedded GPU
2) in BIOS setted "Initialize onboard GPU first".
[...]

Hmm.. then I would disable the 2nd option.
Then maybe both GPUs will be found.

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Use "dummy" monitor for GPU (8500GT).
Attach it and then boot up machine.
OS in that case will find another GPU, and BOINC will use it.

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I am cruncher :)
I LOVE SETI BOINC :)

ill try disable this "onboard initialization first" thing ....

(i have three HW cuda devices under W7.
on first, 9600GT i have attached monitor, on second 8500 i have set psychx and third, nv750 on board i dont see as cuda device under drivers .... so i think its a driver "problem" - maybe onboard devices are excluded from cuda list in drivers)

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ill try disable this "onboard initialization first" thing ....

(i have three HW cuda devices under W7.
on first, 9600GT i have attached monitor, on second 8500 i have set psychx and third, nv750 on board i dont see as cuda device under drivers .... so i think its a driver "problem" - maybe onboard devices are excluded from cuda list in drivers)

I'm not sure what an nv750 is, but it isn't listed here on the cuda capable list: http://en.wikipedia.org/wiki/CUDA#Supported_GPUs

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ill try disable this "onboard initialization first" thing ....

(i have three HW cuda devices under W7.
on first, 9600GT i have attached monitor, on second 8500 i have set psychx and third, nv750 on board i dont see as cuda device under drivers .... so i think its a driver "problem" - maybe onboard devices are excluded from cuda list in drivers)

I'm not sure what an nv750 is, but it isn't listed here on the cuda capable list: http://en.wikipedia.org/wiki/CUDA#Supported_GPUs

I would be rather surprised if any mobo manufacturer would spend the money to put a Cuda capable video chipset onboard.
If there are any, I am not aware of them. Onboard video is more apt to be a baseline solution for those who don't want to spend the money on a higher end video card.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

Thanks all!
I will try your suggestions when will be near that PC next time. Starting with BIOS proposals :)

Let me know what you find out. I've got the same thing on this little EMachine I'm running and would like to run the monitor on the onboard and CUDA on my 9500GT card. Been afraid to try it myself as everything is running good as is now.

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PROUD MEMBER OF Team Starfire World BOINC

The 6100 is not cuda compatable so you will most likely waste your time trying to make it work. I had one of the onboard GPU's and had the same idea. You are better off to disable it.

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What I did till the moment:
1) in BIOS setted "Always enable" for embedded GPU
2) in BIOS setted "Initialize onboard GPU first".

Monitor attached to embedded GPU. nVidia driver sees only first, embedded GPU and doesn't see secondary GPU (8500GT). So it seems I can't "enable PhysX" on secondary GPU.

Any suggestions? Should I attach another monitor to secondary GPU or some software-only solutions?

Both GPUs are nVidia's ones so it should be possible to enable both, isn't ?

I have a couple of MotherBoards that have embedded GPU's. The BIOS and attached monitors control what is happening. So if the settings are wrong, and there is no monitor attached you get a black screen. Windows may load and sit waiting at the Login Prompt. Or depending Fail under stop on All Errors.
My most notable would be this machine which has basically has an embedded nvidia 9100 chip (cheaper than a full card). But not cuda compatable. Boinc Sees it as a result of the installed drivers.

So if you leave the BIOS at the Factory Defaults and add a card and connect monitors to both video ports (with drivers are installed for both) they both should be active depending on the OS installed. The embedded should be first and that would be here you get the login prompt. A key term in the BIOS is "PEG" if that is activated then it would indicate that the BIOS is supposed to look for an added GPU adapter in a Slot other than the embedded GPU.

Regards

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Please consider a Donation to the Seti Project.

ill try disable this "onboard initialization first" thing ....

(i have three HW cuda devices under W7.
on first, 9600GT i have attached monitor, on second 8500 i have set psychx and third, nv750 on board i dont see as cuda device under drivers .... so i think its a driver "problem" - maybe onboard devices are excluded from cuda list in drivers)

I'm not sure what an nv750 is, but it isn't listed here on the cuda capable list: http://en.wikipedia.org/wiki/CUDA#Supported_GPUs

nforce 750i is chipset with pre-ION chips - CUDA device with 8 streams and is using a system memory

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I guess I'm unlucky or something, As pc3 has an ATi chipset and ATi video(m7470n), While I set the bios for built in, PCI-E or PCI, The 3.47 HP(ms-7184) Bios can not disable the ATi Video, The MSI 3.9(ms-7093) bios can, But until I hook up an internal fdd flashing the bios there is impossible.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

The 6100 is not cuda compatable so you will most likely waste your time trying to make it work. I had one of the onboard GPU's and had the same idea. You are better off to disable it.

I'm not trying to run CUDA MB on 6100. I want to use 6100 as video-card attached to monitor and secondary, CUDA-enabled GPU - as co-processor.
Why it needed in my case:
secondary GPU is low-end CUDA GPU. Running alone it encounters kernel crashes often. I think it's because of 3 seconds limit (for WinXP) for kernel length. Being used as secondary GPU it will be free from this limitation and could run even longest kernels w/o errors or unacceptable slow GUI response.
That's why I try to make such dual-GPU config.

For test purposes only, set the BIOS to use the 8500GT and attach a second monitor to that (you'll probably need two monitors available while you do the setting up). You should get Windows running, using the 8500GT as the display card.

Now, is the embedded 6100 visible to Windows? Some BIOSs disable the on-board video when a plug-in card is used, in which case you're stuck.

But if Windows can still see the embedded adapter: extend the desktop to the 6100, set the 6100 as the primary display, and then de-extend it from the 8500GT. Test it running like that for a while - see if it avoids the kernal timeouts. If it passes that test, try rebooting a few times to see if the configuration sticks. And finally, see if it boots OK without a monitor attached to the 8500GT. If you can make all that work (you'll proably be booting blind, not able to see POST or the Windows logo screen), you can give the second monitor back to the colleague you pinched it from!

[All this is guesswork - I've been through the 'add a second monitor' stage often enough, but that's because the user wants to run two monitors. I've never actually tried taking the primary one off]