Dreamcast hardware list based on internal differences

Table of contents

Introduction

How to participate

Dreamcasts

Japan

Asia

USA & Canada

Europe

How to see the differences ?

Modem / LAN / BBA Adapters

Thanks

 

 

1)      Introduction

Over the years, a lot of people have discussed the different dreamcast models.

A lot of lists based on the external case exist, but few reliable lists based on the internal hardware differences exist.

This list tries to regroup that information based on reliable sources only (ie, Dreamcast I have or detailed photos).

 

Ifve collected +- 30 dreamcasts, mainly Japanese for the moment, and made a small program to do a few BIOS/c checks.

It is a continuous work-in-progress, so it 1) is not complete (especially the production years) and 2) will be adapted in the future (read: very long term project).

If you have Dreamcast models not mentioned here, or models that contradict / complete the info here, please read the next paragraph to see how you can participate in making this list better.

 

2)      How to participate

-          Fill in / Select the following fields & post everything on: http://assemblergames.com/l/threads/dreamcast-hardware-list-based-on-internals.33064/

(Note: Since some properties are not straightforward, Ifve added a paragraph ghow to see the differences ?h)

 

Region:                             Japan/Asia/USA/Europe

HKT nr. :                           HKT-3000 / HKT-3010 / HKT-3020 / HKT-3030

Color Encoding:              NTSC-J / NTSC-U (with the number in the circle) / PAL (with the letter & digit besides it, eg PAL-E (1))

Fan:                                  Metal / Plastic

Windows CE:                  Designed For / Compatible With

Company:                        Sega Enterprises / Sega Corporation

MIL-CD:                            Compatible / Not Compatible

GD-ROM Manufacturer:             Yamaha / Samsung

GD-ROM daughter board:         Yes / No

Model nr.:                       The 670-xxxxxx nr, with the last x being a letter

 

-          To allow others to validate your entry, add some pictures, the clearer the better !

·       Take a clear picture of the back of the Dreamcast, so that all the letters & numbers of the label(s) are readable

·       Take a clear picture of the front of the Dreamcast, with the lid open, so that we can see the inside + read the Windows CE logo

·       Take of the top of the case by removing a few screws in the back of the Dreamcast, and take a clear picture of the inside of the Dreamcast,

so that we can see the fan, the GD-ROM manufacturer, and whether it has a GD-ROM daughterboard or not.

-          Specify if you bought it first-hand or second-hand

-          If you can upload .elf programs to your Dreamcast via BBA/Lan/serial cable, upload the checker program dc_joho.elf to your Dreamcast & post  a screenshot of the Bios version & CRC.

·       Warning: program is not 100% correct yet, but the BIOS CRC & the version string should be OK.

·       This an example of the current output:

Description: http://users.skynet.be/t_chan/dc/pics/dc_joho.jpg

 



3)      Dreamcasts

 

JAP Type 1 (Launch Model)

JAP Type 2

JAP Type 3

JAP Type 4

Region

Japan

Japan

Japan

Japan

HKT nr.

HKT-3000

HKT-3000

HKT-3000

HKT-3000

Color Encoding

NTSC-J

NTSC-J

NTSC-J

NTSC-J

Fan

Metal

Plastic

Plastic

Plastic

Windows CE

Designed For

Designed For

Designed For

Compatible With

Company

Sega Enterprises

Sega Enterprises

Sega Corporation

Sega Corporation

MIL-CD

Compatible

Compatible

NOT Compatible

Compatible

GD-ROM Manufacturer

Yamaha / Samsung

Samsung

Samsung

 

GD-ROM daughter board

Yes

Yes

Yes

No

BIOS-CRC

1.004 - 0x5454841F

1.01d - 0x89F2B1A1

? (to be tested later)

1.01d - 0x89F2B1A1

Model nr.

670-13748A, 670-13748B,

670-13748C, 670-13748D,

670-13748E

670-14071B, 670-14071C,

670-14071D, 670-14071E

670-14071G

670-14071F

 

 

USA Type 1 (Launch Model)

USA Type 2

USA Type 3

USA Type 4

Region

USA

USA

USA

USA

HKT nr.

HKT-3020

HKT-3020

HKT-3020

HKT-3020

Color Encoding


NTSC-U (1)


NTSC-U (2)

Fan

 

Plastic

 

Plastic

Windows CE

 

Compatible With

 

Compatible With

Company

 

Sega Enterprises

 

Sega Enterprises

MIL-CD


Compatible


(to be tested later – broken laser on test DC)

GD-ROM Manufacturer

 

 

 

 

GD-ROM daughter board

 

Yes

 

No

BIOS-CRC

 

 

 

 

Model nr.

 

670-14081G, 670-14081M

 

670-14081N

 

 

EUR Type 1 (Launch Model)

EUR Type 2

EUR Type 3

EUR Type 4

Region

Europe

Europe

Europe

Europe

HKT nr.

HKT-3030

HKT-3030

HKT-3030

HKT-3030

Color Encoding

PAL-E (1)

PAL-E (1)

 

 

Fan

Metal

Plastic

 

 

Windows CE

Compatible With

Compatible With

 

 

Company

Sega Enterprises

Sega Enterprises

 

 

MIL-CD

Yes

Yes

 

 

GD-ROM Manufacturer

 

Samsung

 

 

GD-ROM daughter board

Yes

Yes

 

 

BIOS-CRC

 

1.01d - 0x89F2B1A1

 

 

Model nr.

670-14088C

670-14088E

 

 



A)      Japan:

Japan Type 1:

Description: http://users.skynet.be/t_chan/dc/pics/dc_jp_type1.jpg

Nr.

Manufacturer

Production Years

Case Types


670-13748A

SEIYO D.

(1998-99)

normal DC


670-13748B

SANWA DENKI S

(1999)

normal DC, Dev.Cas


670-13748C

ASAHI Electron

(1998-99)

normal DC


Debug DC

1.01d - 0x89F2B1A1

670-13748D

T. TKR

(1998-99)

normal DC


670-13748E

UGO DENSHI

(1999)

normal DC


 

Japan Type 2:

Description: http://users.skynet.be/t_chan/dc/pics/dc_jp_type2.jpg

Nr.

Manufacturer

Production Years

Case Types

 

670-14071B

SANWA DENKI S

(1999-2000)

normal DC

 

670-14071C

ASAHI Electron

(1999-2000)

normal DC, (Hello Kitty (TBC))

 

670-14071D

T. TKR  

(1999)

normal DC

 

670-14071E

UGO DENSHI

(2000)

normal DC, R7 retail version

 

 

Japan Type 3:

Description: http://users.skynet.be/t_chan/dc/pics/dc_jp_type3.jpg

Nr.

Manufacturer

Production Years

Case Types


670-14071G

UGO DENSHI

(2000)  

normal DC, Sakura Taisen


 

Japan Type 4:

 

Nr.

Manufacturer

Production Years

Case Types


670-14071F

ASAHI Electron

(2001)

normal DC


 

B)      ASIA: HKT-3010: NTSC-J

Asia Type 1: Launch model. Metal fan. MIL-CD compatible.

Nr.

Manufacturer

Production Years

Case Types

BIOS (CRC)

670-13624A

SEGA

?

normal DC

1.004 - 0x5454841F

 

Asia Type ?:

Nr.

Manufacturer

Production Years

Case Types

BIOS (CRC)

670-14146A

SEGA

?

normal DC

 

 

C)      USA & Canada:

USA Type ? (all these data have to be verified):

Nr.

Manufacturer

Production Years

Case Types

BIOS (CRC)

670-14081B


(1999)

normal DC

 

670-14081D

SD (Japan) – NTSC-U(0)

(1999)

?

 

670-14081H

AE (Japan)  – NTSC-U(1)

(2000)

?

 

670-14081J

TK (Japan) – NTSC-U(1)

(1999-2000)

?

 

670-14081K

UD (Japan) – NTSC-U(1)

(1999)

?

 

670-14081L

GS (Indonesia)

(1999)

?

 

670-14081P

SA (China) - NTSC-U(2)

(2000)

NTSC-U (2)

 

670-14081R
SA (China) - NTSC-U(2) (2000) Sega Corporation


 

USA Type 2:

Nr.

Manufacturer

Production Years

Case Types

BIOS (CRC)

670-14081G

SD (Japan)

(2000)

normal DC

 

670-14081M

WK (China)

(1999-2000)

normal DC

1.01d - 0x89F2B1A1

 

USA Type 4:

Nr.

Manufacturer

Production Years

Case Types

BIOS (CRC)

670-14081N

WK (China)

(2000)

normal DC

(to be tested later – broken laser)

 

 

D)     Europe:

Europe Type ? (all these data have to be verified)::

Nr.

Manufacturer

Production Years

Case Types

BIOS (CRC)

670-14088B Indonesia, PAL-E(1)
(1999)


670-14088D

?

?

normal DC

 

Europe Type 1:

Nr.

Manufacturer

Production Years

Case Types

BIOS (CRC)

670-14088C

? (Indonesia)

(1999)

normal DC

 

Europe Type 2:

Nr.

Manufacturer

Production Years

Case Types


670-14088E

? (Indonesia)

(2000)

normal DC




E)      How to see the differences ?

Fan:

Metal:

Plastic

Japan:

Europe:

Japan & Europe:

Description: http://users.skynet.be/t_chan/dc/pics/dc_metalfan.jpg

 

Description: http://users.skynet.be/t_chan/dc/pics/dc_plasticfan.jpg



GD-ROM daughter board:

With daughter board:

Without daughter board:

Description: http://users.skynet.be/t_chan/dc/pics/gd_with_daughter.jpg

Description: http://users.skynet.be/t_chan/dc/pics/gd_no_daughter.jpg



 

Description: http://users.skynet.be/t_chan/dc/pics/gd_no_daughterb.jpg







4)      Modem / LAN / BBA Adapters

 

 Modem

Jap Type A

Jap Type B

Jap Type C

External ref.

S98-3073-0 A00-0491 JP A00-0492 JP, 670-14140B

Board ref. (171-*)

171-7628D
171-8094C
171-8094C

Board ref. (837-*)

837-13377
837-14115
837-14040
837-14041
837-14040
837-14041

Board text

IC BD MODEMARU
IC BD MODEMARU JPN/USA
IC BD MODEMARU JPN/USA

Company

SEGA SEGA SEGA

Year

1998 2000
2000

Made in

Japan
Japan
Japan

Modem Chip Manuf.

Rockwell Conexant  Conexant

Modem Chip Ref.

RP336LD R6785-17 RP336LD R6785-18
RP56LD R6785-19
Modem Speed
V.34 (33.6 kbps) V.34 (33.6 kbps) V.90 / K56flex


  Modem



USA Type C1

USA Type C2

USA Type C3


External ref.



670-14082A, 670-14140A 670-14082A, 670-14140B 670-14082A, 670-14140B

Board ref. (171-*)



171-7954B
171-7954B
171-8094C

Board ref. (837-*)



837-13770
837-13770
837-14115
837-14040
837-14041

Board text



IC BD MODEMARU USA
IC BD MODEMARU USA
IC BD MODEMARU JPN/USA

Company



SEGA
SEGA
SEGA

Year



1999
1999
2000

Made in



Japan
Japan
Japan

Modem Chip Manuf.



Conexant
Conexant

Conexant


Modem Chip Ref.



RP56LD R6785-19 RP56LD R6785-19
RP56LD R6785-19
Modem Speed


V.90 / K56flex V.90 / K56flex V.90 / K56flex

 

  Modem

EUR Type A

EUR Type B

EUR Type C

External ref.

670-14116A

670-14116A / 670-14117A

?

Board ref. (171-*)

171-7955D

171-7955D

171-7955D

Board ref. (837-*)

837-13771

837-13771

837-13771

Board text

IC BD MODEMARU EUR/AUS

IC BD MODEMARU EUR/AUS

IC BD MODEMARU EUR/AUS

Company

SEGA

SEGA

SEGA

Year

1999

1999

1999

Made in

Japan

Japan

Japan

Modem Chip Manuf.

Rockwell

Conexant

Conexant

Modem Chip Ref.

RP336LD R6785-17

RP336LD R6785-18

RP56LD R6785-19

Modem Speed
V.34 (33.6 kbps)
V.34 (33.6 kbps) V.90 / K56flex


LAN / Broadband Adapter

Jap LAN Jap BBA
USA BBA

External ref.

(None) 670-14250C

Board ref. (171-*)

171-8075B (Main)
171-8076B (Sub)
171-8124F ?

Board ref. (837-*)

837-13993B (Main)
837-13994B (Sub)
837-14081

Board text

PC BD MAIN LAN-SDRAM (Main)
PC BD SUB LAN-SDRAM (Sub)
PC BD LANMARU2 FOR DC

Company

SEGA SEGA

Year

2000 2000

Made in

Japan Japan

Modem Chip Manuf.

Altera + Fujitsu Realtek + Pulse

Modem Chip Ref.

Max EPM7064STC100-10 + (?) MB86967 RTL8139C + H0011
Modem Speed
10 mbps 100 mbps


  Specials

Dummy Modem
Debug DC Modem

External ref.

-

(None)

Board ref. (171-*)

171-7788A
171-7954B

Board ref. (837-*)

839-1107A
837-13770

Board text

PC BD TERMINATION
IC BD MODEMARU USA

Company

SEGA

SEGA

Year

-

1999

Made in

Japan
Japan

Modem Chip Manuf.

-

Rockwell

Modem Chip Ref.

-

RP56LD R6785-19
Modem Speed
-

V.90 / K56flex


JAP:

                             

Front – Type A


Front – Type B


Front – Type C


Back – Type A


Back – Type B


Back – Type C

Bottom – Type A


Bottom – Type B


Bottom – Type C




USA-CAN:


Front – Type C1


Front – Type C2


Front – Type C3
Back – Type C1
Back – Type C2
Back – Type C3
Bottom – Type C1
Bottom – Type C2
Bottom – Type C3
Inside – Type C1
Inside – Type C2

Inside – Type C3





EUR:

Front – Type A

Front – Type B

Front – Type C

Back – Type A

Back – Type B

Back – Type C

Bottom – Type A

Bottom – Type B

Bottom – Type C


Broadband Adapter:



Front - Jap


Back - Jap


Bottom - Jap



LAN Adapter:


Front - Jap


Back - Jap


Inside - Jap





Dummy modem:

Front


Back




Debug DC modem:


Front - USA


Back - USA


Side - USA


Miniboard-USA




5)      Thanks

This list couldnft have been done without the help of:

APE, mooseblaster