.\"	$NetBSD: hardware,v 1.8 1999/05/04 03:38:40 simonb Exp $	
.
NetBSD/pmax \*V runs on the following classes of machines:
.Bl -bullet -compact
.It
DECstation 2100 and 3100, also known as
.Em pmin No and Em pmax
.It
Personal DECstations (5000/20, /25 and /33) also known as
.Em MAXINE
.It
DECstation 5000/120, /125, and /133, also known as
.Em 3MIN
.It
DECstation 5000/200, also known as
.Em 3MAX
.It
DECstation 5000/240 and DECsystem 5900, also known as
.Em 3MAXPLUS
.It
DECstation 5000/50, 5000/150, 5000/260 (and DECsystem 5900-260) \- R4000
and R4400 variants of the the
.Em MAXINE, 3MIN No and Em 3MAXPLUS
.El
.Pp
NetBSD/pmax \*V does
.Em not
(yet) run on these machines:
.Bl -bullet -compact
.It
DECsystem 5100 (an r3000-based cousin of the DECstation 3100)
.It
DECsystem 5400 and 5500 (Qbus-based systems, similar to the Vax
.Em Mayfair No \&or Em Mayfair II ,
but with an r2000a or r3000 cpu instead of a CVAX cpu.)
.It
DECsystem 5800 (xbi-based multiprocessor, a Vax 6200 with
Vax CPU boards replaced with Mips cpu boards)
.El
.Pp
The minimal configuration requires 8M of RAM and ~60M of disk space.
To install the entire system requires much more disk space, and to run
X or compile the system, more RAM is recommended.  (NetBSD with 8M of
RAM feels like Ultrix with 8M of RAM.)  Note that until you have
around 16M of RAM, getting more RAM is more important than getting a
faster CPU.
.Pp
Supported devices include:
.Bl -bullet -compact
.It
DECstation 2100 and 3100 baseboard video
.	Bl -hyphen -compact
.	It
one-bit mono or 8-bit pseudocolour frame buffers.
.	El
.It
DECstation 5000 series TurboChannel video
.	Bl -hyphen -compact
.	It
PMAG-DV Personal DECstation baseboard 1024x768 frame buffer
.	It
PMAG-BA 1024x768 8-bit colour frame buffer
.	It
PMAGB-BA 1024x768 8-bit colour frame buffer
.	It
PMAG-AA 1280x1024 four-bit greyscale frame buffer
.		(Note
All supported DECstation video produces sync-on-green.
Be sure to use either a DEC-compatible fixed-sync monitor
or a multisync monitor that supports sync-on-green.
.		Note)
.	El
.It
serial ports: 
.	Bl -hyphen -compact
.	It
ttya and ttyb (can be used as console if needed)
.	El
.It
ethernet: 
.	Bl -hyphen -compact
.	It
on-board AMD Lance ethernet
.Pq Em (le0) ,
.	It
TURBOchannel AMD Lance ethernet cards
.Pq the Em PMAD
.	El
.It
SCSI: 
.	Bl -hyphen -compact
.	It
on-board DEC
.Em sii
SCSI controller (2100 and 3100)
.	It
on-board
.Em asc
SCSI controller (5000 series machines)
.	It
TurboChannel
.Em asc No SCSI controller
.Pq the Em PMAZ
.	El
.It
DEC (LK-201 or compatible) keyboard 
.It
DEC
.Em hockey puck
or compatible mouse
.El
.Pp
Hardware the we do
.Em not
currently support, but get questions about from time to time:
.Bl -bullet -compact
.It
Q-bus DECsystem machines
.It
DECsystem 5100 machines
.It
PrestoServe NVRAM on DECsystem 5100 and 5000/2xx machines
.It
audio drivers for Personal DECstation machines
.It
floppy driver for Personal DECstation machines
.It
TurboChannel audio hardware (LoFi)
.It
PMAG-C 2-D (PX) and other accelerated framebuffers (PXG, PXG+ and
PXG+ Turbo) with onboard i860 processors
.El
.(Note
the primary obstacle to support of all but the very
last item is non-availability of sample hardware for development.
.Pp
The primary obstacle for the i860-based framebuffers is that there
is no documentation on the accelerator board.  There is support
for the PX and PXG framebuffers in NetBSD-current after NetBSD 1.4.
.Note)