English Amiga Board

Go Back   English Amiga Board > Support > support.Hardware > Hardware mods

Thread Tools
Old 27 March 2018, 10:18   #1
Registered User
Join Date: Sep 2008
Location: Somewhere
Posts: 217
A4000+ Alice motherboard DIY

Let me introduce you to the A4000+ Alice rev1 motherboard.
A4000+ motherboard is based on the Amiga 4000cr motherboard designed by Commodore.

I have been thinking for a while to do some Amiga hardware and decided to start with a relatively easy but laborious task, an Amiga 4000cr motherboard.
I didn't have a blank A4000cr motherboard PCB nor any high-resolution pictures of a blank PCB, so I had to layout the A4000+ PCB completely manually.
I used a fully working A4000cr motherboard as a reference.

The PCB dimensions and all component locations, hole locations, hole diameters, solder pad dimensions, component silkscreens, etc. of the A4000cr motherboard were manually measured and transferred to the PCB design software.
I draw the line at the PCB traces, those I didn't attempt to mimic from the original A4000cr board.
The PCB traces of the A4000+ were fully manually routed (which too ages).

The result is a quite close replica of the original A4000cr motherboard.

Here are a few pictures of the blank PCB.

A few pictures of the board being assembled.

Pictures of the finished board.

A4000+ motherboard being mounted in the Amiga 4000D case.

A4000+ motherboard fully working.

A screenshot of the designed PCB.

Link to the photo gallery:
A4000+ Alice motherboard

The next motherboard that I'm working on will be something completely different.
hese is offline  
Old 27 March 2018, 10:49   #2
Thalion Webshrine
alexh's Avatar
Join Date: Jan 2004
Location: Oxford
Posts: 12,589
Good work. Very well done.

Do you intend to make any? Or open source your design?

I imagine that your NRE (the amount of money spent) is probably more than the cost of an A4000?

How many hours did it take to populate the board?

What is next for you? Improve on the design? Add an 060? Add an FPGA (The Apollo Core can be licensed)?
alexh is offline  
Old 27 March 2018, 11:31   #3
Bit Copying Bard

indigolemon's Avatar
Join Date: Jan 2017
Location: Kelty, Fife, Scotland
Age: 38
Posts: 966
Excellent work, that looks amazing
indigolemon is online now  
Old 27 March 2018, 11:42   #4
Registered User

Chucky's Avatar
Join Date: Mar 2015
Location: Karlstad / Sweden
Age: 49
Posts: 918
WOW nice work! damn. will you open? sell? etc.. you know that question will pop up
Chucky is offline  
Old 27 March 2018, 11:50   #5
JLPedro's Avatar
Join Date: Jun 2008
Location: Coimbra, Portugal
Age: 44
Posts: 95
Amazing work !
JLPedro is offline  
Old 27 March 2018, 11:52   #6
Registered User
Join Date: May 2013
Location: Kleppe / Norway
Posts: 214
Very nice work!
Yulquen74 is offline  
Old 27 March 2018, 12:01   #7
Jope's Avatar
Join Date: Jul 2003
Location: Helsinki / Finland
Age: 40
Posts: 8,298
So, where can I buy a couple? :-)
Jope is online now  
Old 27 March 2018, 12:15   #8
Registered User
Join Date: Dec 2017
Location: Czech republic
Posts: 40
Incredible! Will you make a batch to sell?
mpattonm is offline  
Old 27 March 2018, 12:17   #9
Registered User

Join Date: Jul 2014
Location: Finland
Posts: 1,003

Is the imgbox gallery dead?
Locutus is offline  
Old 27 March 2018, 12:23   #10
Posts: n/a
Will you be selling the card?
Old 27 March 2018, 12:25   #11
Posts: n/a
Holy smokes what an amazing feat. You wrote that you didn't copy the traces but rather routed the traces yourself. Did you encounter any problems with that? Any enhancements made?
Old 27 March 2018, 12:32   #12
Registered User

highpuff's Avatar
Join Date: Jan 2014
Location: Göteborg
Posts: 42
Awesome job! Please let me know if you are going to make a batch of those PCB's.

highpuff is offline  
Old 27 March 2018, 12:37   #13
Registered User

Chucky's Avatar
Join Date: Mar 2015
Location: Karlstad / Sweden
Age: 49
Posts: 918
I do not Want. I NEED! (thinking of a batch of vartakilled boards I got at home)
Chucky is offline  
Old 27 March 2018, 12:47   #14
Registered User

Join Date: Aug 2014
Location: Telemark
Posts: 207
roomeo is offline  
Old 27 March 2018, 12:49   #15
move.l #$c0ff33,throat

StingRay's Avatar
Join Date: Dec 2005
Location: Berlin/Joymoney
Posts: 6,593
Awesome! If you ever sell these I'll definitely buy one or more.
StingRay is offline  
Old 27 March 2018, 12:51   #16
Registered User

Join Date: Jan 2016
Location: Helsinki
Posts: 81
HelloBeautiful is offline  
Old 27 March 2018, 12:53   #17
Registered User

Join Date: Mar 2018
Location: London/UK
Posts: 46
Awesome work. Far beyond me to even attempt any of that, but I had to log in just to express how fantastic this is.

And now imagine these in White or Red or some other colour. Personalised A4000 boards.
Capeview is offline  
Old 27 March 2018, 12:57   #18
Posts: n/a
Amazing work!
Old 27 March 2018, 13:03   #19
Needs a life

chiark's Avatar
Join Date: Jan 2008
Location: England
Posts: 1,665
I've just gone fetched my hat, so I can take it off to you sir. That is quite some feat. Astonishing.

Well done! What's next
chiark is offline  
Old 27 March 2018, 13:24   #20

Join Date: Aug 2007
Location: The South of nowhere
Age: 42
Posts: 2,226
A wet dream!

Would love one.
gulliver is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
A4000 DIY Motherboard elenachen Hardware mods 156 18 February 2020 16:32
A1200 rev.2B motherboard: resistor in ALICE pin keropi Hardware pics 11 06 March 2008 01:38
My DIY A4000 tower Secret Vampire Hardware pics 1 29 July 2006 18:12
[FA] A4000 Motherboard scan_x MarketPlace 6 15 March 2004 16:19
[FA] A4000 Motherboard scan_x MarketPlace 2 12 January 2004 10:58

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +2. The time now is 19:12.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Page generated in 0.13246 seconds with 16 queries