I am using the stock BIOS currently, I initially started with UniBIOS but switched it early on to simplify troubleshooting
- Thread starter Mitsurugi-w
- Start date
Honestly, without looking further in detail the mobo I can't say more. PSU looks OK, BIOS OK, Was the rechargable battery replaced with a button battery? In that case, some part of the charging circuit must be disabled. Did you do that?
At this point, do you have another mobo where you could test it, maybe?
PLMK.
Understand, I appreciate the assistance thus far. I got the board ~12 or so years ago with the battery already removed. I installed the CR2032 battery + holder about a week ago in prep for the cart since I saw a functional battery was required and I already had some CR2032 battery holders on hand. I followed the JNX guide and de-soldered the 470ohm resistor next to the battery. Confirmed battery was functional (time saved, etc) and played ~4-5 hours of MVS prior to getting the cart.
I plan on doing a recap on the board anyways (cap kit on the way), and will use that time to inspect the board more thoroughly and will likely re-flow cart connectors while I am at it. If that doesn't work I will look into acquiring another mobo since I don't have access to another at this time.
Received my DS Neo Multi MVS today and I'm sadly having some issues. I suspect its 5v rail on the PSU but wanted to run it by everyone here before throwing money/parts/time at the problem.
Here's the details about my cabinet:
Here's the details about my cabinet:
- Model: MVS MVH 4SLOT
- BIOS: Unibios 4.0
- I recapped the entire system (both boards, audio amp, PSU) when I bought it 4 years ago to resolve faint audio and other anomalies with games sporadically not loading, crashing, etc.
- I doubt its related, but I've also replaced the marquee lighting with an LED from https://www.neogeoledmarquee.info/.
- I've confirmed all four slots are working flawlessly with multiple original carts. No issues found.
- I've cleaned all the slots and the edge connectors on the DS Neo Multi MVS.
- I reset the BIOS settings and made sure that DIP 1 (hardware test) is disabled.
- With the MultiCart in Slot 1:
- System Boot music begins playing corrupted music. I understand that the music is predicated on which cart is in Slot 1 (Magical Drop II, for instance, changes the boot theme to a more melodical version of the startup sound).
- Marquee lights light for each slot (this is usually a sign that the game in that slot is recognized as a game, correct?)
- System begins demo for Slot 2 game, skipping Slot 1.
- If I manually cycle through Slots 3 and 4 those load, but if I continue cycling to slot 1 it won't load and skips slot 1, returning to Slot 2
- If I soft reset the system (through on-screen BIOS option) on reset the system will check slot 1 and load the MultiMVS but both the sound and the graphics are badly corrupted.
- I can navigate the menus on the screen (text is actually legible) but loading any game results in what appears to be a crash and the unit switches to Slot 2 and begins that game's demo. If nothing else, I can at least say that the SD card is working.
- With the Multi MVS in any other slot:
- Essentially the same behavior, except where Slot1 location is specific to certain behaviors (boot sound, etc).
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Hi,
I received my cartridge today. Here is what I have noticed so far:
Small glitches on the list of games when scrolling (nothing serious).
MV-1FZS with or without battery, and unibios 4:
KOF'03, crashes more or less quickly after starting when you modify the game settings beforehand (in the cartridge menus). A Clear Backup RAM in the cartridge menus solved the problem for the first time then it was impossible to restart the game without problems. Even after a Clear Backup RAM on the slot, deleting the files at the root of the SD, several Clear Backup RAM on the cartridge, FLASH of another game then FLASH of KOF'03 again, nothing works.
Glitch on the unibios4 logo (nothing serious).
Sometimes the "l" of "Clear Backup RAM" is missing in the menu.
Menu settings are not saved.
MV-1FZ with battery and original bios:
KOF'94, sometimes, big glitch, no background.
FOF'03, sometimes, small glitch, in the form of small light bars in the intro and menus.
Preliminary conclusion: cartridge not really compatible with unibios 4, battery required.
I received my cartridge today. Here is what I have noticed so far:
Small glitches on the list of games when scrolling (nothing serious).
MV-1FZS with or without battery, and unibios 4:
KOF'03, crashes more or less quickly after starting when you modify the game settings beforehand (in the cartridge menus). A Clear Backup RAM in the cartridge menus solved the problem for the first time then it was impossible to restart the game without problems. Even after a Clear Backup RAM on the slot, deleting the files at the root of the SD, several Clear Backup RAM on the cartridge, FLASH of another game then FLASH of KOF'03 again, nothing works.
Glitch on the unibios4 logo (nothing serious).
Sometimes the "l" of "Clear Backup RAM" is missing in the menu.
Menu settings are not saved.
MV-1FZ with battery and original bios:
KOF'94, sometimes, big glitch, no background.
FOF'03, sometimes, small glitch, in the form of small light bars in the intro and menus.
Preliminary conclusion: cartridge not really compatible with unibios 4, battery required.
GeorgeSpinner
Grand Master
I think that's actually an mv1b in that case. It's folded over using flex cables; unless something changed in the past year or 2.
I don't think any multi carts work well with that consolized setup.
I have the NeoSD (not pro) and the DarkSoft MultiMVS and both exhibit the behavior you are showing on that console.
I have 2 of that console and I've tried the beefiest/best power supplies I could find. No luck. They are both in storage now.
Regular carts work fine. The 161 in 1 works fine.
It has been suggested that the missing NEO-BUF is the cause but I don't think anyone has actually added the chip back and then reported the results. Would be good to know.
If you are looking for a consolized MVS that won't break the bank and works fine with your cart you can try looking into the timeharvest mv1c based CMVS.
If you want something that looks like an AES you can try finding a used Omega CMVS. I don't think they are being made anymore. I like mine. It works well.
I'm sure we can also help get you setup with a supergun if you are interested in going that route.
Thank you, I will have a look at the Timeharvest mv1c. I've been looking at the NEO-BUF chip and if I can get one think I may try to add it at some point. I've done some modifications on other consoles in the past so if I can do it ill post my results.
GeorgeSpinner
Grand Master
No problem.
Furrtek sells a very inexpensive reproduction of the NEO-BUF.
I think someone (maybe furrtek) on tindie sells them.
FWIW, just some observations:
I got my Darksoft Multi MVS a few days ago and I installed it in one of my Astro Citys, together with a MV-1FZ (running unibios 4). The MV-1FZ has been running fine in this cab for years, and I play original MVS carts on it all the time.
However, when using the DS Multi I get lots of graphical glitches and weird sound behaviour. For example, when booting up Garou i hear distorted sound for a few seconds. When playing Metal Slug certain audio effects like music suddenly disappear. And so on. Also, I get weird lines on the screen in certain games.
Anyway, I tried the DS Multi with a MV-1A (stock bios) instead, installed in the same cab, and my problems seem to go away. At least from 30 minutes of testing everything is fine again.
I got my Darksoft Multi MVS a few days ago and I installed it in one of my Astro Citys, together with a MV-1FZ (running unibios 4). The MV-1FZ has been running fine in this cab for years, and I play original MVS carts on it all the time.
However, when using the DS Multi I get lots of graphical glitches and weird sound behaviour. For example, when booting up Garou i hear distorted sound for a few seconds. When playing Metal Slug certain audio effects like music suddenly disappear. And so on. Also, I get weird lines on the screen in certain games.
Anyway, I tried the DS Multi with a MV-1A (stock bios) instead, installed in the same cab, and my problems seem to go away. At least from 30 minutes of testing everything is fine again.
According to this source: http://www.hardmvs.fr/html/MV-1FZ.htm
"The only differences between the MV-1A and the MV-1FZ are the amperages, The MV-1A takes +5V 3A, and the MV-1FZ takes +5V 7A and the socketed BIOS is closer to the Jamma connector on the MV-1A"
MV-1FZ needs more Amps apparently.
I am sincerely sorry to have to contradict an authority such as you, this information that comes from the official manual (which is why it is often mentioned) is false (errors in manuals happen). I think there are people much more competent than me who will be able to take measurements to verify. I think we are well below 7 amps. That said, I did my tests on an AxunWorks supergun, I don't think there is a lack of power on this product.
Anyway I will continue my tests.
Of course, nothing against what you are saying and yes, mistakes in manuals happen more often than we think. Let's have a look and find the culprit of this.
Just wanted to jump in and say that I have a MV1FZ and the latest DS multi is working fine both in a NAC and HAS supergun setup. Both the NAC and HAS have PSUs rated for 7A+ and have 16AWG wiring for 5V and DC ground. The motherboard was recapped and it has the stock BIOS.
I’ll gladly keep testing but I wanted to share my experience so far given what others are seeing.
I’ll gladly keep testing but I wanted to share my experience so far given what others are seeing.
GeorgeSpinner
Grand Master
Which axunworks supergun do you have?
If it's the mini and you are using the power brick that comes with it there is a good chance it is under powered.
I had to replece the stock mini power brick with a standard arcade power supply because it was not providing enough power for some of my PCBs.
GeorgeSpinner
Grand Master
That's the big boy! I think it's very cool.
I didn't see any AMP ratings on the page though.
Received my Multi MVS cartridge in good order. Props to @SaveYourGames for the smooth correspondence and handling.
Got an MVS4FT with no unibios and replaced cell battery. Using a 32gb Sandisk Extreme SDHC microsd
The multiMVS is showing some issues.
It runs without issues if its by itself in Slot 1. Sometimes doesn't boot in slot 2 or 4. If Slot 3 is being used I get sound issues on all game slots (had this problem before so nothing new).
Now the weird stuff.
If I combine the multiMVS on slot 1 with other games I get some slight horizontal graphical glitches (ingame & menu). I assume this might be the PSU, will have to check how to verify this.
If I combine it with either a Blazing Star or Windjammers cart then the multi MVS is last in the game selection order, no matter the slot.
And if the multimvs is coupled with a Windjammer or Bubble Bobble cart, the sound is garbled if it concerns high pitched sounds or explosions.
Last and certainly the least, the demo modes for both Garou of Samurai Shodown 1 always play the exact same fight. For Garou its a Hokutomaru mirror match, and for SamSho its Haoh vs Ukyo. Those games specifically, demo's seem to work fine on alot of other games.
I've seen people make repeated statements to verify 5.1v at input and ground, so I assume my PSU either can't pull the weight or there might be tracing issues influencing voltage? Ill look what I can find with the multimeter. Just started the neo geo "hobby" so don't really know what to expect or look at.
The MVS can handle 4 original large games at the same time (aside from slot 3 sound problems), so I assumed my power supply was in good condition.
Appreciate any advice if Im missing something obvious.
Got an MVS4FT with no unibios and replaced cell battery. Using a 32gb Sandisk Extreme SDHC microsd
The multiMVS is showing some issues.
It runs without issues if its by itself in Slot 1. Sometimes doesn't boot in slot 2 or 4. If Slot 3 is being used I get sound issues on all game slots (had this problem before so nothing new).
Now the weird stuff.
If I combine the multiMVS on slot 1 with other games I get some slight horizontal graphical glitches (ingame & menu). I assume this might be the PSU, will have to check how to verify this.
If I combine it with either a Blazing Star or Windjammers cart then the multi MVS is last in the game selection order, no matter the slot.
And if the multimvs is coupled with a Windjammer or Bubble Bobble cart, the sound is garbled if it concerns high pitched sounds or explosions.
Last and certainly the least, the demo modes for both Garou of Samurai Shodown 1 always play the exact same fight. For Garou its a Hokutomaru mirror match, and for SamSho its Haoh vs Ukyo. Those games specifically, demo's seem to work fine on alot of other games.
I've seen people make repeated statements to verify 5.1v at input and ground, so I assume my PSU either can't pull the weight or there might be tracing issues influencing voltage? Ill look what I can find with the multimeter. Just started the neo geo "hobby" so don't really know what to expect or look at.
The MVS can handle 4 original large games at the same time (aside from slot 3 sound problems), so I assumed my power supply was in good condition.
Appreciate any advice if Im missing something obvious.
