My Computer Collection
Personal DECstation 5000/33

Photo of Personal DECstation 5000/33
Click here or click onto the photo for a full size version of this picture.

This DECstation belongs to the last generation of Mips-based workstations made by DEC, just before the switch to the Alpha processor was made. In fact, both the case and the internal peripherals are extremely similar to the DEC3000/300 line of Turbochannel based Alpha workstations. Common attributes are for example the Audio hardware and ISDN interface, both implemented via an AMD AM79C30 controller chip. DEC however never attempted to certify the interface for use in Germany, so the RJ plug is covered with a "don't use" sticker :-(

Similar to the 5000/1xx and 5000/240, the processor itself is located on a separate CPU module. Other options were:

  • R3000/3010 @ 20MHz
  • R3000/3010 @ 25MHz
  • R4000 @ 50MHz
Mips R3000, 33 MHz
Mips R3010, 33 MHz
64 Kbytes Code, 128 Kbytes Data
Integer Performance:
roughly like a 486DX2/66
24 Mbytes (options range from 8M to 40M)
2 TurboChannel slots @ 12.5 MHz
Interfaces (onboard):
  • Mouse, Keyboard via Desktop Bus
  • 1 x Serial
  • SCSI (narrow)
  • 10 Mbps Ethernet (AUI only)
  • Audio in/out (Telephone Quality)
  • ISDN
  • 1024x768@256 colors video interface
  • Floppy Disk Controller
Add-on cards:
  • PMAGB-A Color Video (1024x864@256 colors)
Operating System(s):
  • NetBSD 1.3.3

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©1999 Alfred Arnold,