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Re: [Xen-devel] GeForce 4xx/Fermi to Quadro Modifying Quide

On Tue, Nov 26, 2013 at 06:36:05PM +0000, Gordan Bobic wrote:
> On Tue, 26 Nov 2013 12:33:41 -0500, Konrad Rzeszutek Wilk
> <konrad.wilk@xxxxxxxxxx> wrote:
> >On Mon, Nov 25, 2013 at 09:22:00PM +0000, Gordan Bobic wrote:
> >>Due to popular demand, I have finally found time to write this up. I
> >>had to rush it a little, but hopefully you get the gist.
> >>
> >>
> >>http://www.altechnative.net/2013/11/25/virtualized-gaming-nvidia-cards-part-3-how-to-modify-a-fermi-based-geforce-into-a-quadro-geforce-gts450gtx470gtx480-to-quadro-200050006000/
> >>
> >>Any questions, please ask away, and I'll update the article to
> >>expand on those points where appropriate.
> >
> >Awesome! I read it and was getting ready to modify my Nvidia card and
> >then realized I have an GTX460 which is looks to be GF110 but
> >not exactly full-fledge (one of the SMs is dead) so probably
> >nothing can be done about it.
> From what I can see there are several variants of the GTX460,
> some with the GF104 GPU, others with the GF114 GPU. There is no
> Quadro based on the GF114, but there are two mobile Quadro
> variants based on it: Q3000M and Q4000M.
> The GTX460 variants have the following device IDs:
> GeForce GTX 460               0x0E22 

That is the one!

> GeForce GTX 460 SE    0x0E23
> GeForce GTX 460               0x0E24
> The corresponding Quadros have IDs:
> Quadro 3000M  0x0E3A
> Quadro 4000M  0x0E3B
> So you _should_ be able to modify your card into one of those,
> since the adjustment range is within the bottom 5 bits of the
> device ID and the GPU itself is the same.
> Q4000M looks like a closer match. I'd say it's certainly
> worth a try. :)
> I don't recall that virtualization is technically supported
> on the mobile series GPUs, but it might work just fine.
> Please report back whether it works if you try it, and
> perhaps add the model to the successfully tested passthrough
> GPUs on the wiki page. :)

OK, will report back.
> >>Hopefully this will help those on a non-Quadro level budget who want
> >>to use GPU passthrough that works properly.
> >
> >Time to find one of those cards at the MIT flea or hit eBay!
> I'd still have a go at modding your existing card first, if
> for no other reason then because I don't think anyone has tried
> that particular model before.
> Gordan

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