🚀 go-pugleaf

>
> This is an archived page from the Intel site. Apparently the original
> page is no longer available, but I found a copy.
>
> http://web.archive.org/web/20070116044022/http://www.intel.com/support/graphics/intel865g/sb/CS-013743.htm
>
> If that link doesn't work, the page was archived on a few different dates.
>
> http://web.archive.org/*/http://www.intel.com/support/graphics/intel865g/sb/CS-013743.htm
>
> As far as I know, they're referring to VGA. I don't know how
> I'd figure out what your DVI is capable of. It will have
> different limitations, due to the cooking up of the
> various reduced blanking modes. (That takes effort
> from the driver writer, and isn't particularly a
> hardware issue.)
>
> So it would seem the list is a bit bigger than that.
>
> For your DVI output, this is the technology I was thinking of.
> The picture here shows an ADD card. It plugs into the AGP slot,
> and has a SIL164 DVI transmitter or equivalent on it. The thing
> is, they can take the chips off this card, and solder them to your
> motherboard, to drive a DVI output. And that is because the
> AGP slot is not being used for anything (not for upgrading),
> so the tiny chips here can be permanently connected.
>
> http://www.intel.com/support/graphics/intel865g/sb/CS-009166.htm
>
> While in theory, the SIL164 type device could support 1920x1200
> at 60Hz, sometimes there are internal data rate issues inside
> the GPU, that prevent it.
>
> Here is another of those helpful pages from Intel.
>
> http://www.intel.com/support/graphics/sb/CS-022544.htm
>
> So I downloaded the 865G datasheet, and on PDF page 178, is makes the
> claim they could do 2048x1536 via two DVO ports (connected to the
> DVI transmitter chip). But that doesn't mean that the
> implementation works that way.
>
> http://download.intel.com/design/chipsets/datashts/25251405.pdf
>
> As an example of a DVI transmitter, this one has two 12 bit interfaces.
> And the 865G has two 12 bit interfaces multiplexed on the AGP pins.
> The datasheet here claims up to "UXGA" display resolution on DVI.
>
> http://www.siliconimage.com/docs/SiI-DS-0021-E-164.pdf
>
> From the Wikipedia page on DVI -
>
> UXGA (1600 � 1200) @ 60 Hz with GTF blanking (161 MHz)
>
> The question would then be, whether Intel can change the
> setup of the 865G output to use this format. As long as the
> "clock number" stays under 165MHz, it should work.
>
> WUXGA (1920 � 1200) @ 60 Hz with CVT-RB blanking (154 MHz)
>
>    Paul

Much thanks for all the information and the time and effort you put into it.
My PC is getting long in the tooth and I've decided to buy a new one .

Thanks again,

tom