Re: [CAD_CAM_EDM_DRO] Mach3 & "integrated video"

OK, I got this worked out, thanks.

I found I couldn't get my old motherboard to boot, but the video card it
came with works fine inside this "new" system instead of its integrated
video. And I found my old memory and processor were superior to what
was in this thing so hey I think we're good.

Unless someone has dire warnings about using the AGP video card on a
board with (disabled) integrated video, consider the question closed.

Danny

Stephen Wille Padnos wrote:

>
> Danny Miller wrote:
>
> >Well, what confuses me is that isn't the parallel port on the
> >southbridge and video on the northbridge anyways?
> >
> >
> The problem with chipset-integrated video is that it requires access to
> memory for video refresh as well as operations on display data. When
> the chipset decides to access memory for the video controller, the CPU
> can't get access to main memory. If an interrupt fires and all of the
> data and code aren't in cache, the CPU has to wait until the video
> controller finishes its work before the chipset will fetch data into the
> CPU caches. This causes little hiccups that would normally be
> insignificant, but when you're trying to get interrupt response to be
> accurate to a few microseconds, they're terrible.
>
> >Logically I'm not sure if northbridge traffic would interfere with
> >southbridge. But even assuming it could, the real mysterious part there
> >is that doesn't an integrated video system run through the northbridge
> >pretty much the same as if it were running through the AGP port?
> >
> >
> For one of the old Intel AGP cards that actually used main memory for
> display data, yes, they may be pretty similar. Those cards were dog
> slow so they were never very popular.
>
> >Wow, this machine really was bare bones:
> >http://www.netaffilia.com/ad/electronics/frys/i/2006/10/27/20379.html
> <http://www.netaffilia.com/ad/electronics/frys/i/2006/10/27/20379.html>
> >
> >
> Heh - that's a fine system, other than the memory and CPU (and possibly
> the onboard video ;) )
>
> >Just 2 yrs ago it was selling for $129 (I've put a fresh XP install on
> >it instead of Linux).
> >
> >
> That was very cheap 2 years ago. I don't think you can buy a barebones
> PC for that little today. (unless you get a very good deal)
>
> - Steve
>
>