H4 MONGREL EDITION DEVELOPMENT & INFO

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MONGREL H4 USER BUILDS
Topic for users to share their building progress.
Topics: 41

41 Topics

2505 Posts

Last post Re: Kodak80 H4F build
by exxos View the latest post
Sat Jun 07, 2025 8:56 am

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42 topics

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Some users still using Hotmail etc and unable to post on the forum

Last post by exxos « Tue Aug 18, 2026 1:20 pm
Posted in NEWS & ANNOUNCEMENTS
Replies: 37
by exxos » Tue Oct 08, 2024 4:53 pm » in NEWS & ANNOUNCEMENTS
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37 Replies

458976 Views

Last post by exxos
Tue Aug 18, 2026 1:20 pm
Exxos IP ban check

Last post by exxos « Tue Aug 18, 2026 1:01 pm
Posted in NEWS & ANNOUNCEMENTS
Replies: 32
by exxos » Tue Oct 01, 2024 4:32 pm » in NEWS & ANNOUNCEMENTS
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32 Replies

307772 Views

Last post by exxos
Tue Aug 18, 2026 1:01 pm
If you are trying to register with the forum.. (email problems)

Last post by exxos « Tue Jan 03, 2023 11:44 pm
Posted in NEWS & ANNOUNCEMENTS
Replies: 10
by exxos » Fri Sep 23, 2022 6:47 pm » in NEWS & ANNOUNCEMENTS
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10 Replies

297092 Views

Last post by exxos
Tue Jan 03, 2023 11:44 pm
Forum Behaviour and Rules

Last post by exxos « Fri Jan 24, 2025 1:23 pm
Posted in NEWS & ANNOUNCEMENTS
Replies: 6
by rubber_jonnie » Wed Feb 23, 2022 9:53 am » in NEWS & ANNOUNCEMENTS

6 Replies

189451 Views

Last post by exxos
Fri Jan 24, 2025 1:23 pm
User control panel - Order history, tracking, and address information

Last post by exxos « Mon Feb 07, 2022 1:21 pm
Posted in EXXOS WEBSTORE INFORMATION
Replies: 1
by exxos » Mon Feb 07, 2022 12:54 am » in EXXOS WEBSTORE INFORMATION

1 Replies

177847 Views

Last post by exxos
Mon Feb 07, 2022 1:21 pm
Correct procedures for uploading files to the forum

Last post by exxos « Sun Apr 12, 2026 10:47 pm
Posted in NEWS & ANNOUNCEMENTS
Replies: 1
by rubber_jonnie » Wed Oct 14, 2020 1:43 pm » in NEWS & ANNOUNCEMENTS

1 Replies

178037 Views

Last post by exxos
Sun Apr 12, 2026 10:47 pm
How to place photos in a post

Last post by exxos « Sun Apr 12, 2026 10:47 pm
Posted in NEWS & ANNOUNCEMENTS
Replies: 4
by Icky » Sat Nov 30, 2019 10:53 am » in NEWS & ANNOUNCEMENTS

4 Replies

236295 Views

Last post by exxos
Sun Apr 12, 2026 10:47 pm
Upside down forum images...

Last post by kowalski33 « Wed Apr 23, 2025 9:11 am
Posted in NEWS & ANNOUNCEMENTS
Replies: 5
by exxos » Tue Jan 16, 2018 11:30 am » in NEWS & ANNOUNCEMENTS

5 Replies

196472 Views

Last post by kowalski33
Wed Apr 23, 2025 9:11 am

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H4 BUYERS INTEREST - SOLD OUT!

Last post by Bikerbob « Tue May 19, 2020 4:20 am
Replies: 36
by exxos » Sun Dec 29, 2019 10:34 pm
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36 Replies

27285 Views

Last post by Bikerbob
Tue May 19, 2020 4:20 am
Future of the project.

Last post by exxos « Fri Mar 13, 2020 8:20 pm
Replies: 31
by exxos » Wed Oct 23, 2019 12:46 pm
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31 Replies

28552 Views

Last post by exxos
Fri Mar 13, 2020 8:20 pm
DB19 variations

Last post by frank.lukas « Fri Dec 27, 2019 6:45 pm
Replies: 4
by exxos » Thu Dec 26, 2019 9:32 pm

4 Replies

7115 Views

Last post by frank.lukas
Fri Dec 27, 2019 6:45 pm
Assembled H2 interest ?

Last post by exxos « Wed Oct 16, 2019 9:56 pm
Replies: 6
by exxos » Thu Jul 18, 2019 9:20 pm

6 Replies

8863 Views

Last post by exxos
Wed Oct 16, 2019 9:56 pm
ST-IDE-ROM Dev Board v1 - BETA Testers

Last post by exxos « Mon Jan 26, 2026 7:51 pm
Replies: 695
by Icky » Thu Feb 28, 2019 7:49 am
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695 Replies

336871 Views

Last post by exxos
Mon Jan 26, 2026 7:51 pm
DS1315 clock chip equivalents?

Last post by exxos « Fri Oct 01, 2021 1:35 am
Replies: 7
by PhilC » Fri Nov 29, 2019 4:09 pm

7 Replies

8064 Views

Last post by exxos
Fri Oct 01, 2021 1:35 am
H4 remake

Last post by JezC « Sun Feb 07, 2021 2:48 pm
Replies: 11
by exxos » Sat Feb 06, 2021 6:02 pm
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11 Replies

10518 Views

Last post by JezC
Sun Feb 07, 2021 2:48 pm
exxos IDE interface (untested)

Last post by exxos « Tue Nov 03, 2020 2:52 pm
Replies: 114
by exxos » Sun Nov 19, 2017 9:54 pm
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114 Replies

85662 Views

Last post by exxos
Tue Nov 03, 2020 2:52 pm
Project for someone...

Last post by exxos « Wed Jul 29, 2020 10:48 pm
Replies: 2
by exxos » Wed Jul 29, 2020 10:18 pm

2 Replies

5067 Views

Last post by exxos
Wed Jul 29, 2020 10:48 pm
What's in a logo

Last post by Icky « Tue Jul 21, 2020 8:20 pm
Replies: 15
by Icky » Sun May 10, 2020 1:06 pm
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15 Replies

12655 Views

Last post by Icky
Tue Jul 21, 2020 8:20 pm
H4G - Mongrel SMT Edition

Last post by Icky « Sun Jun 07, 2020 6:21 pm
Replies: 47
by Icky » Wed May 20, 2020 6:31 pm
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47 Replies

43420 Views

Last post by Icky
Sun Jun 07, 2020 6:21 pm
Proposed next H4 board.

Last post by officer960 « Tue May 19, 2020 10:01 pm
Replies: 10
by exxos » Wed May 13, 2020 4:34 pm
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10 Replies

11274 Views

Last post by officer960
Tue May 19, 2020 10:01 pm
True 16MHz Mode

Last post by Icky « Thu May 14, 2020 2:59 pm
Replies: 113
by Icky » Wed May 01, 2019 11:35 pm
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113 Replies

81948 Views

Last post by Icky
Thu May 14, 2020 2:59 pm
A prosperous beginning ?

Last post by exxos « Tue May 12, 2020 7:33 pm

by exxos » Tue May 12, 2020 7:33 pm

0 Replies

5347 Views

Last post by exxos
Tue May 12, 2020 7:33 pm
Things to try..

Last post by exxos « Sun May 03, 2020 3:34 pm
Replies: 5
by exxos » Thu Feb 27, 2020 8:57 pm

5 Replies

6913 Views

Last post by exxos
Sun May 03, 2020 3:34 pm
RAM change to simm ?

Last post by exxos « Tue Jan 14, 2020 10:14 am
Replies: 18
by exxos » Fri Dec 14, 2018 11:12 am
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18 Replies

18294 Views

Last post by exxos
Tue Jan 14, 2020 10:14 am
32.084988MHz oscillator

Last post by PaulJ « Thu Jan 02, 2020 6:48 pm
Replies: 14
by kodak80 » Sun Nov 03, 2019 9:28 pm
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14 Replies

13996 Views

Last post by PaulJ
Thu Jan 02, 2020 6:48 pm
Scart switching with 12V

Last post by Icky « Sat Dec 28, 2019 12:25 am
Replies: 1
by exxos » Sat Dec 28, 2019 12:02 am

1 Replies

5179 Views

Last post by Icky
Sat Dec 28, 2019 12:25 am
STF Remake Mongrel H4 Build Guide

Last post by Icky « Sat Nov 30, 2019 8:44 pm
Replies: 10
by Icky » Mon Oct 21, 2019 9:57 pm
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10 Replies

18035 Views

Last post by Icky
Sat Nov 30, 2019 8:44 pm
3V <> 5 V thoughts

Last post by MasterOfGizmo « Mon Oct 14, 2019 10:13 am
Replies: 1
by exxos » Sat Mar 23, 2019 8:26 pm

1 Replies

6636 Views

Last post by MasterOfGizmo
Mon Oct 14, 2019 10:13 am
MONO SWITCH

Last post by exxos « Tue Oct 08, 2019 12:50 pm
Replies: 5
by exxos » Thu Dec 13, 2018 7:38 pm

5 Replies

9041 Views

Last post by exxos
Tue Oct 08, 2019 12:50 pm
H2C SCHEMATIC 19-07-2019

Last post by PaulJ « Fri Jul 26, 2019 4:52 pm
Replies: 18
by exxos » Fri Jul 19, 2019 7:42 pm
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18 Replies

16696 Views

Last post by PaulJ
Fri Jul 26, 2019 4:52 pm
ALPHA CPU Extension Board - Yes Another Tower

Last post by Icky « Sat Jun 15, 2019 11:03 am
Replies: 20
by Icky » Tue May 07, 2019 8:12 pm
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20 Replies

20262 Views

Last post by Icky
Sat Jun 15, 2019 11:03 am
Clocking

Last post by ijor « Thu Jun 06, 2019 2:53 pm
Replies: 6
by ijor » Wed Jun 05, 2019 8:05 pm

6 Replies

7837 Views

Last post by ijor
Thu Jun 06, 2019 2:53 pm
16MHz Mod PCB install

Last post by Icky « Mon Jun 03, 2019 6:53 pm
Replies: 10
by exxos » Fri May 31, 2019 9:47 pm
1

2
10 Replies

11803 Views

Last post by Icky
Mon Jun 03, 2019 6:53 pm

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