Sun Archive System Overview
The Sun3/3x-Series:
With the Sun3/3x-Series Sun switched to using the Motorola 68020.
A few later models had 68030's, but by that time Sun was
already moving toward SPARC processors. All models either have a 68881
or 68882 FPU installed stock or at least have a socket for one. All
models which are not in pizza box chassis are VMEbus. Two out of three
pizza box models have a "P4" connector which can take a framebuffer; the
exception is the 3/50.
Support for Sun-3's was introduced in SunOS 3.0. The last version of
SunOS to support Sun-3's was 4.1.1U1.
During the Sun-3 era, Sun introduced the handy practice of putting
the model number on the Sun badge on the front of the chassis.
There are two different kernel architectures in the Sun-3 model line.
All 68020-based models are "sun3" architecture; 68030-based models (the
3/80 and 3/4xx) are "sun3x" architecture.
Models:
Processor(s):
68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
contexts, 2 MIPS
CPU:
501-1163/1164/1208 (1074/1094/1177/1178 are obsolete)
Chassis type:
deskside
Bus:
VME, 12 slots
Memory:
16M physical (documented), 256M virtual, 270ns cycle
Notes:
First 68020-based Sun machine. Uses the
"Carrera" CPU, which is used in most other Sun
3/1xx models and the 3/75. Sun supplied 4M
memory expansion boards; third parties had up to
32M on one card; 3/160G and 3/160CXP reported as
expandable to 24M only. SCSI optional. One
variant of the memory card holds a 6U VME SCSI
board; there is also a SCSI board which sits in
slot 7 of the backplane and runs the SCSI bus
out the back of the backplane to the internal
disk/tape (slot 6 in very early backplanes). CPU
has two serial ports, Ethernet, keyboard. Type 3
keyboard plugs into the CPU; Sun-3 mouse plugs into
the keyboard. Upgradeable to a 3/260 by replacing CPU
and memory boards.
Processor(s):
68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
contexts, 2 MIPS
CPU:
501-1163/1164/1208 (1074/1094/1177/1178 are obsolete)
Chassis type:
wide pizza box
Bus:
VME, 2 slot
Memory:
16M physical (documented), 256M virtual, 270ns cycle
Notes:
Optional SCSI sits on memory expansion board in
second slot.
Processor(s):
68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
contexts, 2 MIPS
CPU:
501-1163/1164/1208 (1074/1094/1177/1178 are obsolete)
Chassis type:
deskside
Bus:
VME, 3 slots
Memory:
16M physical (documented), 256M virtual, 270ns cycle
Notes:
3/140M reported expandable to 12M only.
Processor(s):
68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
contexts, 2 MIPS
CPU:
501-1163/1164/1208 (1074/1094/1177/1178 are obsolete)
Chassis type:
deskside
Bus:
VME, 6 slots
Memory:
16M physical (documented), 256M virtual, 270ns cycle
Processor(s):
68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
contexts, 2 MIPS
CPU:
501-1163/1164/1208 (1074/1094/1177/1178 are obsolete)
Chassis type:
rackmount
Bus:
VME, 12 slots
Memory:
16M physical (documented), 256M virtual, 270ns cycle
Notes:
Rackmount version of 3/160. Upgradeable to a
3/280 by replacing the CPU and memory boards.
Very early backplanes have the special SCSI
hookup on slot 6 rather than 7.
Processor(s):
68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware contexts, 2 MIPS
CPU:
501-1134/1209
Chassis type:
deskside
Bus:
VME, 3 slots
Notes:
Similar to the "Carerra" CPU, but has 8-bit
color frame buffer on board and uses 1M RAM
chips for 4M on-CPU memory. Code-named "Prism".
Processor(s):
68020 @ 12.5/15.7MHz, 68881 (socket),
Sun-3 MMU, 8 hardware contexts, 1.5 MIPS
CPU:
501-1162/1207 (501-1075/1133, 599-1219/1220/1267/1268/1399 are obsolete)
Chassis type:
wide pizza box
Bus:
none
Memory:
4M physical (documented), 256M virtual, 270ns cycle
Notes:
Cycle-stealing monochrome frame buffer. 4M
memory maximum stock, but third-party memory
expansion boards were sold, allowing at least
12M. No bus or P4 connector. Onboard SCSI. Thin
coax or AUI Ethernet. Code-named "Model 25".
Processor(s):
68020 @ 20MHz, 68881 @ 20MHz (stock),
Sun-3 MMU, 8 hardware contexts, 3 MIPS
CPU:
501-1205/1322/1334/1345
Chassis type:
wide pizza box
Bus:
P4 connector (not same as P4 on 3/80)
Memory:
24M physical, 256M virtual, 200ns cycle
Notes:
VRAM monochome frame buffer. Optional color
frame buffer (could run mono and color from same
board) on P4 connector. Onboard SCSI. SIMM
memory (100ns 1M x 9 SIMMs). High (1600*1100) or
low (1152*870) resolution mono selectable by
jumper. Thin coax or AUI Ethernet. Code-named
"Ferrari".
Processor(s):
68020 @ 20MHz, 68881 @ 20MHz (stock), Sun-3 MMU,
8 hardware contexts, 3 MIPS
CPU:
501-1378
Memory:
12M physical, 256M virtual, 200ns cycle
Notes:
A version of the 3/60 with no onboard
framebuffer and limited to 12M of RAM (4M of
256K SIMMs and 8M of 1M SIMMs).
Processor(s):
68020 @ 25MHz, 68881 @ 20MHz (stock), Sun-3 MMU,
8 hardware contexts, 4 MIPS
CPU:
501-1100/1206
Chassis type:
deskside
Bus:
VME, 12 slot
Memory:
64M (documented) physical with ECC, 256M virtual;
64K write-back cache, direct-mapped,
virtually-indexed and virtually-tagged, with
16-byte lines; 80ns cycle
Notes:
Two serial ports, AUI Ethernet, keyboard, and
video on CPU. Video is mono, high-resolution
only. Sun supplied 8M memory boards. Sun 4/2xx
32M boards work up to 128M. 3/260CXP model
reported as expandable to 24M only. First Sun
with an off-chip cache. Upgradeable to a 4/260
by replacing the CPU board. Code-named "Sirius."
Processor(s):
68020 @ 25MHz, 68881 @ 20MHz (stock), Sun-3 MMU,
8 hardware contexts, 4 MIPS
CPU:
501-1100/1206
Chassis type:
rackmount
Bus:
VME, 12 slot
Memory:
64M (documented) physical with ECC, 256M virtual;
64K write-back cache, direct-mapped,
virtually-indexed and virtually-tagged, with
16-byte lines; 80ns cycle
Notes:
Rackmount version of the 3/260. Upgradeable to a
4/280 by replacing the CPU board. Code-named
"Sirius."
Processor(s):
68030 @ 20MHz, 68882 @ 20 or 40MHz, 68030 on-chip
MMU, 3 MIPS, 0.16 MFLOPS
CPU:
501-1401/1537/1650
Chassis type:
square pizza box
Bus:
P4 connector (not same as P4 on 3/60)
Memory:
16M or 64M physical, 4G virtual, 100ns cycle
Notes:
Similar packaging to SparcStation 1. Parallel
port, SCSI port, AUI Ethernet, 1.44M 3.5" floppy
(720K on early units?). No onboard framebuffer.
Code-named "Hydra". Type-4 keyboard and Sun-4 mouse,
plugged together and into the machine with a small
DIN plug. Boot ROM versions 3.0.2 and later allow
using 4M SIMMs in some slots for up to 64M. 4M standard.
Processor(s):
68030 @ 33 MHz, 68882, 68030 on-chip MMU,
7 MIPS, 0.6 MFLOPS
CPU:
501-1550 (501-1299 is obsolete)
Bus:
VME, 12 slot
Memory:
128M physical with ECC, 4G/process virtual,
64K cache, 80ns cycle
Notes:
Rare.
Processor(s):
68030 @ 33 MHz, 68882, 68030 on-chip MMU,
7 MIPS, 0.6 MFLOPS
CPU:
501-1550 (501-1299 is obsolete)
Bus:
VME
Memory:
128M physical with ECC, 4G/process virtual,
64K cache, 80ns cycle
Notes:
Rare. Code-named "Pegasus." 8M standard.
Processor(s):
68030 @ 33 MHz, 68882, 68030 on-chip MMU,
7 MIPS, 0.6 MFLOPS
CPU:
501-1550 (501-1299 is obsolete)
Bus:
VME
Memory:
128M physical with ECC, 4G/process virtual,
64K cache, 80ns cycle
Notes:
Rare. Code-named "Pegasus." 8M standard.
Processor(s):
68020
CPU:
501-8028
Bus:
VME
Notes:
Single-board VME Sun-3, presumably for use as a
controller, not as a workstation. 6U form
factor.
This informations were compiled by James W. Birdsall and can be found in the
sun.hardware.FAQ some Parts of this Info
where changed and updated by Heiko Krupp.
Please note that the Sun3-Archive is NOT an official Sun Microsystems Site and never claims to be one.
krupp@sun3arc.org
Impressum
(c) Heiko Krupp 1996
