Please consider a donation to the Higher Intellect project. See or the Donate to Higher Intellect page for more info.

Compaq Deskpro 286

From Higher Intellect Vintage Wiki
Revision as of 10:06, 28 December 2021 by CreepingNet (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search


The Compaq Deskpro 286 (Model 2550 and 2551) is a PC compatible desktop based on the intel 80286 processor. It was the sequel to the Compaq Deskpro 8086 that came out the previous year.

Technical Details

There were 2 models released, listed in the specs for the CPU Below. These models were available in numerous configurations depending on where or who you bought the Deskpro 286 from. It seems the most common configuration(s) were the following...

  • Intel or AMD 80286 processor running at 8MHz (2550), or 12MHz (2551)
  • 80287 Math Co-Processor optional
  • 640KB-2MB RAM on the system board, up to 8.1MB of RAM expandable via memory expansion boards
  • 360K DSDD 5.25", and 1.2MB HD 5.25" Floppy Drives offered factory original
  • Hard Drives in 20/40/70MB capacities
  • 10MB or 40MB Tape Drive Option
  • CGA or EGA Graphics Card
  • Internal Speaker Sound (with hotkey adjustable volume)
  • Typically paired with a Compaq 101 key AT keyboard and either a Compaq RGB or Monochrome Green/Amber DSM Monitor.

Just like the Deskpro 8086, the Compaq Deskpro 286 looks very much like a standard AT Desktop, but under the hood it's a proprietary machine. The 286 saw the removal of the front case LED light for Turbo status replacing it with a large, black, keylock on the front of the case. Also the case badging, at some point, changed from gold to Silver. Just like the 8086, it still used proprietary aluminum drive rails, a special single-ribbon power supply, 4x power ports on the motherboard for drive power using special cables, and had the Compaq DSM Monochrome Display power plug in the back of the machine.

See Also