Re: [Xen-users] VGA Passthrough attempted with an Nvidia GTX970

[Gordan Bobic <gordan@xxxxxxxxxx>]

On 2015-02-12 12:30, Peter Kay wrote:
> > They are (thankfully), but I would not want to bet that similar
> > bugs don't lurk elsewhere. Start with baby steps until you have
> > confidence in your hardware. :)
> You don't want to know about the BIOS bugs in my (obscure) hardware,
> or the fact the embedded graphics card shares a PCI-e IOMMU group with
> the southbridge PCI-e slot, the only one useful in this case. Of
> course Xen doesn't tell you that, KVM has to be used.
What is an IOMMU "group" and why does it matter?

> > Of course. I find Quadro 2000 is very good value for testing. I bought
> > one for about Â90 2 years ago, and have been keeping it on the shelf
> > ever since for testing new hardware with. Last I checked the price
> > on them has nearly halved on those since I bought it.
> > You might want to look into a Quadro 2000 next time, it is a
> > single slot card and they are quite cheap now (same spec as a
> > GTS450).
> Yep, the FX3800 and Quadro 2000 are both about Â50 now. I am *very*
> limited on space in my case, needed a card that was as slim as
> possible, and the FX3800 seemed a bit more slim.
Q2000 has half the TDP and is considerably shorter. As for thickness,
they are both single slot cards, so I doube there is a worthwhile
difference.

> It also comes with a
> stereo DIN port and has a higher memory bandwidth, so for some
> applications it may be faster. For others the Quadro 2000 should win
> by a long way. I'm limited to PCI-e 1x in the slot I'm putting it in,
> so not fussed too much by performance.
I was more thinking about the heat.

Gordan

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