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Re: [Xen-users] Is it possible to mod a Geforce GTX 560 graphics card into a Quadro?

On 07/31/2013 09:43 PM, Singapore Citizen Mr. Teo En Ming (Zhang Enming) wrote:
On 01/08/2013 03:20, Gordan Bobic wrote:
On 07/31/2013 06:56 PM, Singapore Citizen Mr. Teo En Ming (Zhang
Enming) wrote:
Dear Gordan,

I have a Gigabyte Geforce GTX 560. Is it possible to mod it into a

It isn't. There is no equivalent Quadro model to modify it into.

If it is possible, please give me the link with the list of steps to mod
it into a Quadro. Is it a simple process?

Cards that can be modified using a BIOS modification only:

1)    From:    GTS450 (only 192-shader 1GB GDDR5 model!)
    To:    Quadro 2000

2)    From:    GTX470 (448 shaders, 1.25GB)
    To:    Quadro 5000

3)    From:    GTX480 (480 shaders, 1.5GB)
    To:    Quadro 6000

4)    From:    GTX580 (512 shaders, 1.5GB, 3GB)
    To:    Quadro 7000
    Note:    Quadro 7000 isn't supported for "MultiOS" and VGA
        passthrough will not work with it (tested, Quadro
        [256]000 work fine, but a GTX580 modified to Quadro
        7000 does not work with Xen VGA passthrough. So don't
        get this one.

The 6xx series requires hardware modification (soldering 0402 type
surface mount resistors - not for the faint of heart, but doable, I
have successfully modified a GTX680 last weekend)

5)    From:    GTX680, GTX690, also reported to work with GTX670
    To:    Grid K2

Untested, but should work similarly to the other 6xx series mods with

6)    From:    GTX650Ti/GTX650Ti Boost
    To:    Grid K1

If you only want a low end card for virtualization testing, the price
gap between a real Quadro 2000 on eBay and a GTS450 has shrunk to the
point where it's probably not worth the hassle modifying the BIOS
unless your time really is worthless, so my advice would be to just
get a Quadro 2000.

If you are interested in higher performance (e.g. for gaming), GTX480
to Quadro 6000 mod works very well (~$120 on eBay for a GTX480 vs.
~$900 for a real Quadro 6000, spending an hour doctoring the BIOS is
certainly worth the difference).

It depends on how much effort you want to put in, and what you plan to
do with the card (a real Quadro has some extra uncrippled GL
functionality in the silicon which makes it faster than a modified
GeForce in some CAD apps, but it makes no difference in gaming and
general purpose number crunching). See here for some benchmarks
between GTS450 and a Quadro 2000:


If you want something cheap enough that requires no extra effort, a
real Quadro 2000 is probably your best option.


Dear Gordan,

I am disappointed that I cannot modify my Gigabyte Geforce GTX 560 into
a Quadro.

I have checked the prices of Quadro 2000. It costs at least US$385 on
Amazon.com and US$570 on cnet.com.

It looks like I may go the ATI way.

I take it you have a good reason why buying a used one on ebay is not an option for you. I paid about $160 for mine a few months ago and the average sale price for these on ebay has gone down since.


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