[comp.dcom.lans] IBM Token Ring boards in Leading Edge Model D

geoff@hinode.East.Sun.COM (Geoff Arnold @ Sun BOS - R.H. coast near the top) (07/25/89)

We have tried unsuccessfully to install IBM Token Ring cards - both the
IBM Token Ring Network Adapter II (4Mbps, 16K RAM) and the IBM Token Ring
Network 16/4 Adapter (16Mbps or 4Mbps, 8K to 64K RAM) - in Leading Edge Model
D PC's, and each each case they fail the Diagnostics Diskette Initialization
test. I've always assumed that Model D's were fairly representative XT clones.
What other experiences have people had with these boards? Do they work with
other XT clones? We've had no problems with AT's, Compaq 286's, 386's, etc.

Geoff Arnold,                              Internet: garnold@sun.com
Manager, PC-NFS Engineering                UUCP: ....!sun!garnold
PCDS Group, Sun Microsystems Inc.
[Seen on a local church: "From sin to self-realization... and back!"]

fk03+@andrew.cmu.edu (Frank Eugene Kietzke) (08/09/89)

Here at Carnegie-Mellon University, we have an installed base of almost
900 IBM Tokenring Adapters (4 meg type) and we have tested a number of
clones.  Here is the summery that we distribute to users that ask.



The machines that we have experience with that WORK with IBM Token Ring

        Type            PC/XT/AT     Tested By        Comments

Compaq 386              AT-Clone       GSIA
NCR PC8                 AT-clone       GSIA
Compaq Deskpro 286      AT-Clone       GSIA
Epson Equity II         XT-Clone       GSIA
Leading Edge Model D    XT-Clone       GSIA   Clock interrupt was in conflict
                                              disable clock or set alternate
                                              TRN interrupt.

Mirage                  XT-Clone       Data   Set to Inter. Level 3, the PC
                                              seemed to function fine.

ARC (model 10 Turbo)    XT-Clone       Data   When working with clones with
                                              a faster clock speed, keep in
                                              mind that each IBM TR card is
ARC (model X Turbo)     XT-clone       Data   different.  Try a few cards
                                              until one works.

AT&T                    XT-Clone       Data

P.C. Design GV286       AT-clone       Data   Works at 6mHz, but not at
                                              12mHz.

Maxum 286 Turbo         AT-clone       Data   Works at 6mHz, but not in
                                              Turbo mode.

Sperry IT               AT-clone       Data    Works at 6 and 8mHz,
                                               but not at 7.1mHz.

      Clone P.C.'s that DO NOT WORK with IBM Token Ring

        Type            PC/XT/AT     Tested By        Comments

Kaypro PC10             XT-Clone       GSIA
Panasonic Executive     XT-Clone       GSIA    Even using a expansion box that
Partner Portable                               allows IBM cards, we have not
                                               been able to get it to work.
Tandy 1000              PC-Clone       Data
Turbo M                 PC-Clone       Data
Samsung 3001 w/         AT-clone       Data
SMT motherboard
Fountain                AT-Clone       Data



Note:   In most cases IBM PC DOS must be used in place of the DOS supplied
        by the computer manufacturer.