Game not working on Neo Geo MVS

littlecharlie

Twinkle Star Sprite
Joined
Jan 10, 2018
Posts
38
I have a MV1A board that is working perfectly fine with all my games except Metal Slug 3.
This same cartridge is working fine in another 2 MVS boards, so I guess the problem is not the cart itself.

The game boots fine, but when reaching the main title, it shows some graphic issues, and finally I get an error.

IMG_20211217_200628.jpg

IMG_20211217_200639.jpg

IMG_20211217_200800.jpg

My only guess is that the Metal Slug 3 is a very demanding cart, and the board can't handle it.
Does that make sense?
 

SignOfZeta

Ghost of Captain Kidd
15 Year Member
Joined
Sep 18, 2003
Posts
1,666
Nope, makes no sense, all Neo boards can handle all games. Sometimes higher meg carts seem to complain about dirty contacts more but that’s about it.
 

Neo Alec

Orochi Spam Riot
20 Year Member
Joined
Dec 7, 2000
Posts
9,780
A serious contact cleaner like Deoxit D5 has fixed my fussy games in the past. Also, clean the board cart slot. Is the MV1A using the same power supply as the other two boards?
 

littlecharlie

Twinkle Star Sprite
Joined
Jan 10, 2018
Posts
38
I will buy contac cleaner and use it on the board slot.
In the meantime, I have clean the cart, rubbing the pins with a rubber and then cleaning it with isopropyl alcohol. No result.

I use the same power supply (3A) for all my boards. But I also have an arcade PSU (with gives much more amperage, 10A), and still the same result.
 

SignOfZeta

Ghost of Captain Kidd
15 Year Member
Joined
Sep 18, 2003
Posts
1,666
There are a lot of pins on a Neo cart. If some are randomly kinda dirty and they line up with randomly kinda dirty contacts on the main board you get situations where it seems like some carts don’t like certain boards.

Use DeoxIT. It cleans better than regular contact cleaner and is safer for the boards.
 

ChuChu Flamingo

We have purposely, trained him wrong, ...as a joke
10 Year Member
Joined
Nov 23, 2010
Posts
2,398
If your motherboard has a removable pin connector I would reseat it/clean it as well.
 
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