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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
2026-10-12 07:55:22 +02:00

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---
title: Compaq Portable 386
categories:
- Computers
types:
- Professional Computer
origins:
- U.S.A.
years:
- '1987'
cpus:
- Intel 80386
params:
name: Portable 386
image: /media/museum/photos/compaq_portable386_running_s1.jpg
company: /companies/compaq
company_name: Compaq
specs:
- label: NAME
value: Portable 386
- label: MANUFACTURER
value: Compaq
- label: TYPE
value: Professional Computer
- label: ORIGIN
value: U.S.A.
- label: YEAR
value: October 1987
- label: END OF PRODUCTION
value: Unknown
- label: BUILT IN LANGUAGE
value: None
- label: KEYBOARD
value: Typewriter type 92 keys with 12 function keys and numeric keypad
- label: CPU
value: Intel 80386
- label: SPEED
value: 20 MHz
- label: CO-PROCESSOR
value: Socket for an Intel 80387 math coprocessor
- label: RAM
value: 2 MB up to 10 MB
- label: ROM
value: 16 KB
- label: TEXT MODES
value: 40 or 80 columns x 25 lines
- label: GRAPHIC MODES
value: Up to 640 x 400 pixels - CGA resolution (640x200) in DOS mode
- label: COLORS
value: Monochrome orange
- label: SOUND
value: Beeper
- label: SIZE / WEIGHT
value: 41 (W) x 19.2 (D) x 24.8 (H) cm / 11 kg
- label: I/O PORTS
value: Serial, Parallel, Video RGB, expansion bus
- label: BUILT IN MEDIA
value: 1 x 1.2 MB FDD, 40 or 100 MB HDD
- label: OS
value: MS-DOS 3.3
- label: POWER SUPPLY
value: Built-in power supply unit - No battery
- label: PERIPHERALS
value: Expansion box with two IBM-AT card slots
- label: PRICE
value: From $12,000 to $14,000
tabs:
- photos
- adverts
- links
- docs
photos:
- title: LARGE VIEW
subtitle: ''
text: The Portable 386 is running GEM OS and its graphical user interface.
image: /media/museum/photos/compaq_portableiii_running_s1.jpg
- title: SAME CASING
subtitle: ''
text: Only the Compaq logos allow to distinguish a closed Portable III from a Portable 386.
image: /media/museum/photos/compaq_portableiii_twosystems_s1.jpg
- title: TOP VIEW
subtitle: ''
text: ''
image: /media/museum/photos/compaq_portable386_topview_s1.jpg
- title: MOTHERBOARD
subtitle: ''
text: |-
Although the mainboard was the same size and had same connectors as the Portable III, the design was radically different.
**(1)** Intel 80386-20 and socket for a 80387 math coprocessor\
**(2)** 2 x 1 MB RAM modules. Up to 4 MB RAM could be installed.
See the Compaq III's motherboard picture for more information.
image: /media/museum/photos/compaq_portable386_mainboard_s1.jpg
adverts:
- title: US ADVERT NOV. 1987
subtitle: ''
text: |-
Advert said:\
Compaq has long been recognized as the world leader in both 80386 technology and portable computing. Si it's not surprising that we would combine the two.\
But no one expected the new Compaq Portable 386 to run at 20 MHz. And no one even dreamed that it would offer 100 MB of storage, disk caching, and much, much more...
image: /media/museum/pubs/compaq_portable386_pub_1.jpg
links:
- title: Web Wiz CAPTCHA
url: http://www.webwizcaptcha.com
text: ''
docs:
- title: MAINTENACE & SERVICE GUIDE
url: http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&lang=en&cc=us&docIndexId=179111&taskId=101&prodTypeId=321957&prodSeriesId=96333
cover: /media/museum/docs/couvs/vide.gif
text: |-
[**MAINTENACE & SERVICE GUIDE**](http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&lang=en&cc=us&docIndexId=179111&taskId=101&prodTypeId=321957&prodSeriesId=96333)written by Compaq
 compiled/archived by Compaq\
 type of document : PDF\
 source : [Compaq Support Center](http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?lang=fr&cc=fr&taskId=135&prodClassId=-1&contentType=SupportManual&docIndexId=179821&prodTypeId=321957&prodSeriesId=96333)
comments:
- author: Gerhard Polster (Vienna, Austria)
date: Sunday 21st October 2012
text: |-
If you need the BIOS/Boot-disc for this Computer, search Google for sp0308.zip (includes sp0308.exe, 3,5" 720k disc image) or sp0316.zip (includes sp0316.exe, 5,25" 360k disc image).
Works for:\
COMPAQ Portable, COMPAQ DESKPRO, COMPAQ DESKPRO 286,\
COMPAQ PORTABLE 286, COMPAQ PORTABLE II, COMPAQ PORTABLE III, COMPAQ PORTABLE 386, COMPAQ DESKPRO 386, COMPAQ DESKPRO 386/20, COMPAQ DESKPRO 386/25, COMPAQ SLT/286, COMPAQ LTE, COMPAQ LTE/286,\
COMPAQ DESKPRO 286e, COMPAQ DESKPRO 286n
- author: David (USA)
date: Saturday 1st September 2012
text: I am looking for a bootable 5.25” diagnostic disk, also a disk with the bootable 5.25” MS – DOS 3.3 this is for a Compaq 386 portable 2670 I am doing a school project and don’t have a lot to spend but I am willing to pay reasonable compensation.
- author: Christopher Havel (US - North Carolina)
date: Tuesday 31st July 2012
text: |-
Kerry Dunn, if you see this, please send me an email. laserhawk64-NOSPAM $at$ gmail $dot$ com $ take out the -NOSPAM.
I''m interested in your compaq, but I don''t have much money.
Thanks!
- author: Ev (BC Canada)
date: Thursday 10th May 2012
text: |-
Looking for a boot disc for the Compac 386.\
It was working fine but is now asking for a boot disc.\
Any suggestions?\
Thanks\
Ev
- author: Kerry Dunn (US - Pennsylvania )
date: Friday 6th January 2012
text: If anyone is interested in one still in working order, I have one that boots and has the keyboard. unsure of the value but one in wroking order was going for $500 on ebay. Obviosuly with no use for it I would not ask that much. Send me an offer.
- author: Kerry Dunn (US - Pennsylvania )
date: Friday 6th January 2012
text: If anyone is interested in one still in working order, I have one that boots and has the keyboard. unsure of the value but one in wroking order was going for $500 on ebay. Obviosuly with no use for it I would not ask that much. Send me an offer.
- author: Bobr (Czech)
date: Saturday 25th June 2011
text: Hi, please there is no info on HP. Can I download service manual etc from somewhere ? I have 386 machine on 20 MHz Compaq Portable.....
- author: MURTWITNESSONE (USA)
date: Wednesday 26th January 2011
text: |-
I have several of these and they still work. I used to run a BBS of of them. I alternated between the Compaq units and my Commodores.
MURT
- author: AL
date: Sunday 28th November 2010
text: I picked up on of these last week and just finished resurrecting it. Works great! Thanks for the diagnostic disks!
- author: John Mahoney (Minneapolis)
date: Wednesday 3rd November 2010
text: Thanks for posting the diagnostic disk! I have one of these machines, and it is a very unique part of my collection.
- author: Jonathan Roberts (USA)
date: Monday 20th August 2007
text: I ran AutoCAD on one of these in the late '80s/early '90s as a jobbing engineering contractor. The spec I ran included 2MB RAM, 40MB disk, Maths Co-processor, extansion box with graphics card and an additional 17" monitor. It ran faultlessly apart from the C-pro coming loose in its socket once.
- author: Good Ol' Dave (USA)
date: Friday 2nd June 2006
text: Back in the 80's I was a repair technician for MicroAge, and we sold and serviced this PC. I recall that although the service panel was in the rear, the screws holding the power supply was attached to the computer chassis at the front, behind the integral monitor where you couldn't get at them. To remove the power supply a clueless Compaq technician rudely notified us that we needed to buy a specialized (and expensive) tool to remove the integral monitor first before we could remove the power supply. We figured out that there was enough space between the computer chassis and the rear of the monitor to insert a pair of pliers, with which we could slowly undo the seating screws. This was probably the last time in history that service technicians knew more about how to service computers than the manufacturers did.
- author: Richard Hogue (USA)
date: Monday 30th May 2005
text: I carried one of these for years on end. The LCD screen often failed but an external color CRT could be connected. The first one I had was a 286 8Mhz or 16Mhz and later a 386DX at 40Mhz. I used it to connect through a the serial port to Industrial Programmable Controllers called PLC's. The system supported MSDOS 6.22 and Win 3.11 for Workgroups. I even may still have one somewhere on my stored in my brother's barn. The neat thing was you could install many standard AT motherboards as I was responsible for repairing other engineers systems. I think in the end I hand one modified using a 486 100Mhz system board. They all had a actual 5 1/4 drive bay that could support support many types of IDE hard drives of the time. Also there were two bays so I could have a 5 1/4 and 3 1/2 inch floppy drives. The power supply was solid and as long as the box was blown out once a year, it would hold up very well It was actually very realiable and ruged. Of course in time laptops and notebooks would
evolve and become much more practical. I have not yet seen a laptop that could take the physical abuse these units took year after year.
related:
- /museum/compaq-portable
- /museum/compaq-portable-ii
- /museum/compaq-portable-iii
oc_id: 1065
source:
url: https://web.archive.org/web/20230601075306/http://www.old-computers.com/museum/computer.asp?c=1065
date: '2023-06-01'
---
Apart from the Compaq logo, the Compaq Portable 386 was externally identical to the [Portable III](/museum/compaq-portable-iii/), but the inside was a true revolution in the portable computers field of the time. Its Intel 386-20 processor offered more speed, power and capabilities than ever before.
About the Portable 386, PC Magazine said in its review:\
*Its the hottest thing you can pick up with a handle. At 20 MHz, it outperforms everything else on the market but its deskbound sibling . Yet it's rugged enough for on-the-go computing, takes standard PC cards in an elegantly engineered span-on expansion chassis, and weighs less than 20 pounds. Some folks may not like the styling, but everyone loves the way it performs.*
The portable 386 and Portable III had great success around the world, as well as the desktop versions, Compaq Deskpro 286-12 and 386/20. At about the same time as the 386 launch, Compaq announced having manufactured its 1- millionth personal computer.
Later, this robust machine was upgraded by third companies up to 486/80 CPU, 10 MB RAM and 9 GB hard-disk.
<table> <tr> <td></td> <td>We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.</td> <td></td> </tr> </table>