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Neo Geo Tech Support
For all your Neo Geo Tech Needs. This includes the Legendary
Unibios.
NeoSD (Legacy) Tech Forum
Legacy NeoSD technical support
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36
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3.2K
Threads
36
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3.2K
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NeoSD Pro CD support thread
Aug 26, 2025
Mr.Ash
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Ironclad MVS Conversion Issues
CloudGamerX
Jun 27, 2020
2
Replies
34
Views
4K
Jun 29, 2020
CloudGamerX
bios 4.0 duplicated 4 times to fill a m27c4002 size eprom
Ratsalad
Jun 28, 2020
Replies
2
Views
647
Jun 28, 2020
BIG BEAR
4-slot PCB interconnections pinout (a contribution to the crosshatch problem)
MKL
Oct 23, 2005
Replies
24
Views
14K
Jun 27, 2020
homr836
H
Building a CMVS with "decent" HDMI out.
Finch
Jun 6, 2020
Replies
11
Views
2K
Jun 26, 2020
Beharius
B
T
bypass mod doubt c sync pin 10 or 11?
theboy995
Jun 10, 2020
Replies
8
Views
1K
Jun 26, 2020
Neo Alec
M
MVS capacitor desoldering
MtothaJ
Jun 3, 2019
Replies
17
Views
4K
Jun 26, 2020
GohanX
T
How could I properly dump my own BIOS?
TyMiles2012
Jun 24, 2020
Replies
2
Views
1K
Jun 25, 2020
pier
P
Dumb question about a MV-1A board and test switch
Azathoth
Jun 22, 2020
Replies
3
Views
659
Jun 23, 2020
HeavyMachineGoob
MV1C CR2032 rechargeable battery?
Official Ninja
Jun 22, 2020
Replies
1
Views
603
Jun 23, 2020
BIG BEAR
(SOLVED) MV-1FZ Doesn't work with Unibios, but works with stock BIOS?
CloudGamerX
Jun 22, 2020
Replies
4
Views
621
Jun 22, 2020
CloudGamerX
MV2-01 ZMC2 repair - no C-Rom sprites?
avramce
Jun 21, 2020
Replies
3
Views
953
Jun 21, 2020
ack
Japangameonline MVS converter - No sound
TheJiggler
Jun 20, 2020
Replies
5
Views
833
Jun 21, 2020
titchgamer
T
Video Sync on MV-1A board. What is it?
The_Foundation
Jun 20, 2020
Replies
0
Views
517
Jun 20, 2020
The_Foundation
T
Neo Geo MVS 4-slot + supergun scrambled screen
Robert_N_Jones
May 29, 2020
Replies
11
Views
3K
Jun 20, 2020
Robert_N_Jones
Graphic problems in MVS mode, working in while in AES in candy cab
KaedesBlade
May 28, 2020
Replies
5
Views
1K
Jun 18, 2020
Neo Alec
Z
MV1B Video Ram Error
Zetrox
Jun 17, 2020
Replies
1
Views
696
Jun 17, 2020
ack
Garbled music tracks in gameplay and jukebox?
avramce
Jun 13, 2020
Replies
4
Views
814
Jun 15, 2020
Misos
M
Multi game jamma pcb hacking question
Pas
Mar 5, 2008
Replies
6
Views
8K
Jun 15, 2020
c0nn0r
N
Recommended cap kit for MVS MV4FT
NoAffinity
Feb 23, 2020
Replies
2
Views
2K
Jun 14, 2020
NoAffinity
N
P
green screen during z80 test with diag bios and cart
pier
Jun 13, 2020
Replies
4
Views
779
Jun 14, 2020
pier
P
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