Subject: Re: Turbochannel Card Info
To: Chris Tribo <t1345@hopi.dtcc.edu>
From: Vance Dereksen <vance@ikickass.org>
List: port-pmax
Date: 05/11/2001 14:00:20
On Fri, 11 May 2001, Chris Tribo wrote:

> On Thu, 10 May 2001, Vance Dereksen wrote:
> 
> > Which is the fastest?  The PMAGB-BA, the PMAG-F, or the PMAGD-BA?  Also,
> 
> 	PMAGB-BA Would be the fastest 2D card if we had accelerated
> console drivers or an accelerated Xserver for pmax, but alas we do
> not. PMAGB-BA is very slow on the console, and in X. I prefer to use a
> serial console over using a PMAGB-BA. PMAG-F blows a PMAGB-BA out of the
> water, but there is no Xserver available for it, and it takes up three TC
> slots. PMAGD-BA is the best of 2D and 3D acceleration on one card, but
> it's not supported at all yet on NetBSD/pmax AFAIK, should work fine if
> you have an Alpha 3000 series to plug it into though.

Well, I am trying to build an array of 5900s, so the PMAG-F's slot
requirement is not a big deal for me.  However, you're saying if I want
any 3D acceleration, I have to go with the PMAGD-BA?  How does the 2D
speed of the PMAGD-BA compare with the 2D speed of the PMAG-F?  If I use
unaccelerated 3D on the PMAG-F, how does it compare with the accelerated
3D of the PMAGD-BA?

> > what are the chances of the KZTSA FWD-SCSI card being supported, if I were
> > to lend one to someone (with a FWD drive, probably) to write support
> 
> 	Pretty reasonable, if the Alpha port already has a driver for
> it. If not, depends on free time.

Who would I contact about lending a card to someone to port the alpha
driver to pmax?  I don't have the time to write the driver myself, as I
will be doing a lot of stuff for NetBSD/s390.

> > for?  Also, does anyone know the difference between the T2025 DECsystem
> > 5800 CPU boardset and the T2026 Hyperion 5800 CPU upgrade module?  Thanks.
> 
> 	I've never heard of either one of those, sure they aren't
> Alpha/VAX based systems? The system models page refrences an 58x0 where x
> is not equal to zero, but no further information. Perhaps you have
> stumbled onto an unseen MIPS based DECsystem?

Well, the 58x0 means that x is the number of CPU's in the machine.  
Anybody have technical info on the ISIS machines?

Peace...  Sridhar