Saturday, 19 July 2025

List of RM Computers

While I was investigating for more information about RM computers, researching and gathering lots of information scattered all over the Internet, as well receiving more missing information especially from RM User Group members like Matzo while Poggs designing PC-186 ZNET Test Utility and tje is helping me with my RM Net LM 2.0 inquiries. They've inspired me to make my own list of RM Computers similar to epocalc: Computer models database except adding a thumbnail pic which it can be clicked on any pic to enlarge as well going in a bit more detail on every RM Nimbus / RM models, covering all the 486's, D-Series - both AT & ATX case versions, X-Series, etc. Please note it's still work in progress stage.
 

 

Model

Date

OS

CPU

RM Case Style

Model No.

PC-186 compatibility

RM Networks

RM Net

LM

RM Connect

CC3

CC4

Research Machines 380Z (Black case)

1978

CP/M

Z80

   

N/A

Y

N

N

N

N

Link 480Z

1982

CP/NOS (network), CP/M (disk), BASIC

Z80

   

N/A

Y

N

N

N

N

RM Nimbus (Prototype)

1985
(1984)

       

N/A

Y

Y

N

N

N

RM Nimbus PC-186 PC1

21/1/1985

MS-DOS 3.05 release 1.00D - 5th March 1985

AMD / Intel 80186

PC-186 v1

PC-186 N/A

Y

Y N N N

3.10 release 2.06C - 26th July 1985

3.10 release 3.02A - 16th Oct 1985

RM Nimbus PC-186 PC2

1985

  AMD / Intel 80186

PC-186 v1

PC-186 N/A

Y

Y

N

N

N

 

RM Nimbus X10

1980s

  AMD / Intel 80186

PC-186 v1

X10 N/A

Y

Y

N

N

N

 

RM Nimbus X20

1980s

  AMD / Intel 80186

PC-186 v1

X20 N/A

Y

Y

N

N

N

 

RM Nimbus Domesday System

1980s

  AMD / Intel 80186

PC-186 v1

X20 N/A

Y

Y

N

N

N

RM Nimbus PC TN
(Early model)

1985

  AMD / Intel 80186

PC-186 v1

TN N/A

Y

Y

N

N

N

 

RM Nimbus SPCN2 / PCN2

1985

  AMD / Intel 80186

PC-186 v1

PCN2 N/A

Y

Y

N

N

N

 

RM Nimbus XN20

1985

  AMD / Intel 80186

PC-186 v1

XN20  

Y

Y

N

N

N

1986

   Intel 286

X-Series

   

 

       
 

Nimbus 386 AX/2

1986

  i386 

X-Series

   

 

       
 

Nimbus AX 286

1986

   Intel 286

X-Series

   

 

       

RM Nimbus VX/2 (386)

1986

  i386 (80386SX)

X-Series

   

Y

       

RM Nimbus PC-186 PC1

1987

MS-DOS 3.10 release 3.10C - 22nd Sept 1989

AMD / Intel 80186

PC-186 v2

  N/A

Y

Y

N

N

N

Nimbus PC-186 PC2

1987

 

AMD / Intel 80186

PC-186 v2

  N/A

Y

Y

N

N

N

Nimbus PC20

1980s

 

AMD / Intel 80186

PC-186 v2

PC 20MB N/A

Y

Y

N

N

N

RM Nimbus PC TN
(
Later Beige Model)

1987

 

AMD / Intel 80186

PC-186 v2

TN N/A

Y

Y

N

N

N

 

Nimbus AX 386

1980s

   i386

X-Series

   

 

       

Nimbus VX 386/25

1990s

   i386

X-Series

   

 

       
 

Nimbus VX 486

1989

   i486

X-Series

   

 

       

RM Nimbus PC-286
(CD-ROM Server)

1989

  Intel 286

M-Series

   

 

       
 

Nimbus PC-386

1989

  i386

M-Series

PC-386 YES

Y

Y

N

N

N

RM Nimbus Slimline PC-186

Dec 1989

 

AMD / Intel 80186

PC-186 v3

  N/A

Y

Y

N

N

N

RM Nimbus PC TN
(
Slimline Model)

1989

   

PC-186 v3

  N/A

Y

Y

N

N

N

 

NB200

1991

         

 

       
 

NB300

1991

         

 

       

RM Nimbus NB400

June 1991

         

 

       
 

Nimbus PC-386/20

1992

  i386

M-Series

PC-386/20 YES

Y

Y

N

N

N

Nimbus PC-486/25SX

1992

 

i486

S-Series

PC-486/25SX

YES

 

     

RM Nimbus PC-486/66

1992

 

i486

S-Series

PC-486/66

YES

 

Y

     

RM PC-5200 Accelerator

1993

      PC-5200  

 

       
 

RM PC-425

Nov 1994

   i486

D-Series v1 (AT)

PC-425 YES

 

       

RM PC-466 PCI Accelerator (1st base unit with MPC2 sticker at the top)

1994<

 

i486

D-Series v1 (AT)

PC-466

YES

 

Y

     

RM PC-4100 PCI Accelerator

1994

 

i486 - 486 DX4/100

D-Series v1 (AT)

PC-4100

YES

 

Y      

RM PC-575 Accelerator

1994<

 

Pentium/i586 (P5)

D-Series v1 (AT)

PC-575

YES

 

       

RM PC-5166 Accelerator (2nd base unit with MPC2 sticker)

1994<

 

Pentium/i586 (P5)

D-Series v1 (AT)

PC-5166

YES

 

       

RM QE-486/33

1994<

   i486

E-Series

   

 

       

 

CADstation 386/XL

1990s

   i386      

 

       

 

CADstation 486/25 Designer

1990s

   i486      

 

       

 

CADstation 486/25 Elite

1990s

   i486      

 

       
 

SystemBase

1994<

         

 

       
 

SystemBase 486/33

1994<

         

 

       

 

RM SystemBase Mk II Server
(486 DX/2 66)

1994<

 

i486 - 486 DX/2 66

     

 

       
 

V466

1994<

         

 

       

RM Entry Level 300 Celeron

????

Windows 95

Celeron

D-Series v2 (ATX)

PC-6300

NO

 

       
 

Entry Level 633 Celeron

1998>

        NO

 

       
 

Entry Level 667 Celeron

1998>

        NO

 

       
 

Entry Level 733 Celeron

1998>

        NO

 

       
 

Entry Level 766 Celeron

1998>

        NO

 

       
 

A10

1990s

         

 

       
 

Entry Level MX36LE-UN

1990s

         

 

       
 

Entry Level W

1990s

         

 

       
 

Nimbus PC-486

1990s

      PC-486 YES

 

       
 

Nimbus VX 386/25

1990s

         

 

       
 

RM P10

1990s

         

 

       
 

Transport LT

1990s

         

 

       
 

VM7000 Series

1990s

         

 

       
 

Entry Level 700 Celeron

2000>

        NO

 

       
 

Entry Level 800 Celeron

2000>

        NO

 

       
 

Accelerator

2003<

         

 

       

 

RM Window Box

????

Windows 98

Pentium II/i686 (P6)

D-Series v2 (ATX) 

PC-6400

NO

 

       

RM Accelerator (333 PC) - Error 42

????

W95 or NT

Pentium II-MMX/i686 (P6)

D-Series v2 (ATX)

PC-6333

NO

 

       

 

RM Accelerator (350 PC) with AOpen AX6BC motherboard - Flying Scotsman

1998 / 99

NT

Pentium II-MMX/i686 (P6)

D-Series v2 (ATX)

PC-6350

NO

 

       

 

RM Accelerator (450 PC) - mine & Deep Beige

1998 / 99

Win98 SE

Pentium III-MMX/i686 (P6)

D-Series v2 (ATX)

PC-6450

NO

 

       
RM SystemBase TX Server (RM basic server) - Crazy Logic July 2001?? ???
RM Community Connect
Pentium III/i686 (P6)     NO N N Y    
 

Accelerator 500 PC

2003<

        NO

 

       
 

Accelerator 550 PC

2003<

        NO

 

       
 

Accelerator 667

2003<

        NO

 

       
 

Accelerator 733

2003<

        NO

 

       

RM Accelerator (733 PC)

????

Win98 SE

Pentium III/i686 (P6)


C Series

PC-6733

NO

 

       
 

Accelerator 800

2003<

        NO

 

       
 

Accelerator 866

2003<

        NO

 

       
 

Accelerator 933

2003<

        NO

 

       
 

Accelerator PC

2003<

        NO

 

       
 

Accelerator PC-5233

2003<

        NO

 

       
 

Entry Level PC

2003<

        NO

 

       
 

GS 6000 Series

2003<

        NO

 

       
 

GT 6000 Series

2003<

        NO

 

       
 

Innovator 815 1000Mhz

2003<

        NO

 

       
 

Innovator 815 1Ghz

2003<

        NO

 

       

Innovator 815 1000Mhz???

???? (ends by 8th Sep 2004)

Win98 SE

Pentium III/i686 (P6)


C Series

PC-61000

NO

 

       
 

Innovator 815 733Mhz

2003<

        NO

 

       
 

Innovator 815 800Mhz

2003<

        NO

 

       
 

Innovator 815 866Mhz

2003<

        NO

 

       
 

Innovator 815 933Mhz

2003<

        NO

 

       

 

RM desktop pc, Celeron 1.7ghz, 640mb, CD writer, Windows XP 

???? (April 23rd 2004)

Windows XP Home Edition

Celeron

F-Series

PC-61700

NO

 

       

 

Intel Celeron 2.00Ghz computer base unit, 40gb IDE HD, 512mb Ram, Windows XP 

???? (April 23rd 2004)

Windows XP Professional

Celeron

F-Series

PC-62000

NO

 

       

 

Vintage PC Research Machines RM 2.4GHz P4, 1Gb RAM

???? (April 23rd 2004)

Windows XP Home Edition

Pentium 4

F-Series

PC-72400 (2400)

NO

 

       

 

RM Research Machines PC Desktop Tower Case Intel Pentium 4 Win XP 2.8GHz 512MB RAM

???? (April 23rd 2004)

Windows XP Professional

Pentium 4

F-Series

PC-72800 (2800)

NO

 

       

RM Accelerator 1.7GHz

????

Windows XP Home Edition

Pentium 4

T-Series

Normal Image

PC-71700 (1700)

NO

 

       

RM Accelerator 1.7GHz

????

Windows XP Home Edition

Pentium 4

T-Series

Normal Image

PC-71700 (1700)

NO

 

       

RM Innovator P4 PC - Vintage Tower PC Research Machines RM Pentium 4 1.8 GHz, 1GB RAM

1990s
(Jan 2002)

Windows XP Home Edition Pentium 4   PC-71700 (1700) NO

 

       

RM Innovator 2.4 GHz

????

Windows XP Home Edition

Pentium 4

T-Series

Normal Image

PC-72400 (2400)

NO

 

       

RM Innovator 2.6 GHz

????

Windows XP Professional

Pentium 4

T-Series

Normal Image

PC-72600 (2600)

NO

 

       

RM Innovator 2.8 GHz

????

Windows XP Professional

Pentium 4

T-Series

Normal Image

PC-72800 (2800)

NO

 

       

RM Innovator 3.0 GHz

????

Windows XP Home Edition

Pentium 4

T-Series

Normal Image

PC-73000 (3000)

NO

 

       
 

Net PC

2003<

         

 

       
 

PC-5166

2003<

         

 

       
 

PC-5200

2003<

         

 

       
 

PC-5200 Professional

2003<

         

 

       
 

PC-5233

2003<

         

 

       
 

PC-5233 Accelerator

2003<

         

 

       
 

PC-5233 Professional

2003<

         

 

       
 

PC-6200 Professional ATX P6200

2003<

         

 

       
 

PC-6200 Professional II

2003<

         

 

       
 

PC-6200 Professional P6200

2003<

         

 

       
 

PC-6233 Accelerator

2003<

         

 

       
 

PC-6233 Professional II

2003<

         

 

       
 

PC-6266

2003<

         

 

       
 

PC-6266 Accelerator

2003<

         

 

       
 

PC-6266 Professional II

2003<

         

 

       
 

PC-6300

2003<

         

 

       
 

PC-6300 Accelerator

2003<

         

 

       
 

PC-6300 Professional II

2003<

         

 

       
 

PC-6333

2003<

         

 

       
 

PC-6333 Accelerator

2003<

         

 

       
 

Transport ZX

2003<

         

 

       
 

Workstation P4 1.3Ghz

2003<

         

 

       
 

Workstation P4 1.4Ghz

2003<

         

 

       
 

Workstation P4 1.5Ghz

2003<

         

 

       
 

Centrino Tablet PC

2000s

         

 

       
 

Teacher Tablet PC

2000s

         

 

       
               

 

       
   

(starts in 8th Sep 2004)

   

D-Series v3Normal Image

  NO

 

       
RM Desktop Ecoquiet 310

(starts in 26th Oct 2006)

Windows 7 Intel Core i3

G-Series

PC-92600 (2600) NO

 

       
               

 

       
         

TX-SeriesNormal Image

  NO

 

       
           

V-Series

   

 

       
   

(starts in 26th Oct 2006)

   

RM One
RM One

  NO

 

       

 

Links:

Notes / References:

Sub-BIOS routines = BIOS software locks

 

L ist of RM Computers While I was investigating for more information about RM computers, researching and gathering lots of informatio...