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Sun-3 is a series of UNIX computer workstations and servers produced by Sun Microsystems, launched on September 9, 1985. The Sun-3 series are VMEbus-based systems similar to some of the earlier Sun-2 series, but using the Motorola 68020 microprocessor, in combination with the Motorola 68881 floating-point co-processor (optional on the Sun 3/50) and a proprietary Sun MMU. Sun-3 systems were supported in SunOS versions 3.0 to 4.1.1_U1 and also have current support in NetBSD and Linux.
Models are listed in approximately chronological order.
Model Codename CPU board CPU MHz Max. RAM Chassis 3/75 Carrera Sun 3004 16.67 MHz 8 MB 2-slot VME (desktop) 3/140 Carrera Sun 3004 16.67 MHz 16 MB 3-slot VME (desktop/side) 3/160 Carrera Sun 3004 16.67 MHz 16 MB 12-slot VME (deskside) 3/180 Carrera Sun 3004 16.67 MHz 16 MB 12-slot VME (rackmount) 3/150 Carrera Sun 3004 16.67 MHz 16 MB 6-slot VME (deskside) 3/50 Model 25 - 15.7 MHz 4 MB "wide Pizza-box" desktop 3/110 Prism - 16.67 MHz 12 MB 3-slot VME (desktop/side) 3/260 Sirius Sun 3200 25 MHz (CPU), 20 MHz (FPU) 32 MB 12-slot VME (deskside) 3/280 Sirius Sun 3200 25 MHz (CPU), 20 MHz (FPU) 32 MB 12-slot VME (rackmount) 3/60 Ferrari - 20 MHz 24 MB "wide Pizza-box" desktop 3/E Polaris Sun 3/E 20 MHz 16 MB none (6U VME board)
(Max. RAM sizes may be greater when third-party memory board were used).
Original Sun3 4 Mb memory board with Sun3 SCSI daughter board
The Sun Type 3 keyboard is split into 3 blocks:
- special keys
- main block
- numeric pad
In 1989, coincident with the launch of the SPARCstation 1, Sun launched three new Sun-3 models, the 3/80, 3/470 and 3/480. Unlike previous Sun-3s, these use a Motorola 68030 processor, 68882 floating-point unit, and the 68030's integral MMU. This 68030-based architecture is called Sun-3x.
Model Codename CPU board CPU MHz Max. RAM Chassis 3/80 Hydra - 20 MHz 16, 40 or 64 MB "Pizza-box" desktop 3/460 Pegasus Sun 3400 33 MHz 128 MB 12-slot VME (deskside, older design) 3/470 Pegasus Sun 3400 33 MHz 128 MB 12-slot VME (deskside, newer design ) 3/480 Pegasus Sun 3400 33 MHz 128 MB 12-slot VME (rackmount)
Sun 3/260s upgraded with Sun 3400 CPU boards are known as Sun 3/460s.
- New Sun Workstations Lead Industry In System Performance, Press Release, Jackie Rae/Lorrie Duval, Sun Microsystems
- Linux/sun3 This page contains some pointers and references to getting Linux running properly on the Sun 3/xx line of workstations/servers.
- "Sun Type 3 Keyboard". blog.daveastels.com.s3-website-us-west-2.amazonaws.com. Retrieved 2019-12-12.