My MVS cart arrived today and it's great but I have a few issues. It seems to crash and reset randomly. On the few games I have tried. I have been using the pre converted pack that someone high up helped with.
Blazing star was one of the games that crashed during its intro. I did a crc check and it came back as NG
My system is a 1fz
Any idea what might be wrong?
Thanks
My MVS cart arrived today and it's great but I have a few issues. It seems to crash and reset randomly. On the few games I have tried. I have been using the pre converted pack that someone high up helped with.
Blazing star was one of the games that crashed during its intro. I did a crc check and it came back as NG
My system is a 1fz
Any idea what might be wrong?
Thanks
If the position of the label is bothering you: just open the cart up and turn the boards aroundI made the assumption that the cart should go into the CMVS with the label facing me - this apparently is not the case. After opening the case and having a look at the boards and some other pics online I plugged it in 'backwards' and voila.
If the position of the label is bothering you: just open the cart up and turn the boards around
It was posted in the long ass threadLooking at an original MVS cart, I do not understand how boards can be put backwards inside the shell to turn the label, and I have not found any close-up pics of the shells used on the neosd (obvious reasons i guess). for sure this is not possible with original shells.
I get this too, in a 6-slot. Continual reboot usually at NeoGeo startup screen stage. I guess I need that firmware too (will send an email to NeoSD)?Just got my NeoSD MVS in, and popped it into my 6-slot. Long story short, the NeoSD menu will load up just fine (if it is a cold boot, or if I hold A+D+Start), but once a game is flashed (I have tried about 20 games of all ages/sizes), it gives an Illegal Instruction error from Unibios 3.3 and hangs until I reset it with the C button.
Sometimes the game will begin to boot (shows the "100 Mega Shock, or similar boot screen), then the game resets and begins to boot again after a few seconds.
EDIT: Added video!
EDIT2: Things I have tried:
Placing the NeoSD in all 6 slots alone.
Filling all slots with working carts, and the NeoSD.
Changing Unibios region/system.
Changing settings within NeoSD (arcade, nvram, etc)
Any ideas / what info can I provide to help diagnose the issue?
Thanks!
I get this too, in a 6-slot. Continual reboot usually at NeoGeo startup screen stage. I guess I need that firmware too (will send an email to NeoSD)?
I had the same problem- the NeoSD password recovery doesn't work.Thanks for the address
I have tried the recovery password this morning, it said it sent me an email. I have yet to receive it though and tells me I have to wait 24 hours until retry.
As I can't access your website support page, what are the instructions re how to update firmware (when you've emailed file)? Thanks.Yes, send us an email with your serial number, the firmware should fix your issues with the 6 slot
I can't edit posts, so just adding that I got the password email now!I had the same problem- the NeoSD password recovery doesn't work.
As I can't access your website support page, what are the instructions re how to update firmware (when you've emailed file)? Thanks.
I have a loose ground wire in the cab which presumably should attach to the 6 slot board. Please could you advise exactly where it should connect on the board?? Sounds like this might solve the problem :-)As well as engaging with the neosd team - you might want to consider checking if the crystal on your 1FZ is grounded correctly - often they have had glue knocked off and the ground strap over the crystal is floating. Sometimes they don't even have a ground strap over the crystal. All of the 1FZ I tested here at the time exhibited CRC issues until I grounded the crystal cans. I even went as far as to remove the ground connection strap which re-introduced my CRC issues, then joined up again and problems gone away. Might not be relevent to your problem, but something to consider. I've not had clock jitter issues with 4 slot and other 1 slot boards though.
The 'loose' ground connector is attached to the JAMMA loom, which is why I assumed it should connect to the NG board (which was previously removed). I can't see where the other end goes, but will have a closer look! Thankfully it's not the cause of the NeoSD issue I had.The ground wire (just check it is a ground wire before you connect it to anything) - probably best to connect it to pin 1 or pin 28 (one of the edge pins) on the JAMMA connector. Measure your 5v line whilst its powered, if it drops below say 4.85v it could be your PSU (try and aim for just over 5v ~5.10v). Also note - I recently discovered that the carts can be a bit more sensitive to dirty slots too - so make sure the slot and PCB edges are nice and clean.
EDIT: If it's the chasis ground you might want to connect that to the earth terminal. Where exactly is this 'ground wire' connected on the cabinet?
Regarding the repeated rebooting issue-
I checked the voltage at pins 3 & 4 (vs ground pins 1 & 2) with loom connected to 6-slot NG board, and the NeoSD cart inserted and in use i.e. under load. Initially it was +4.77VDC (5.00V with edge connector removed & no load). Repeated rebooting was occurring.
I then progressively increased PSU voltage. When the voltage (loaded) was 5.00V there was still rebooting (less frequent). At 5.2V everything is fine and no rebooting during 1 hour of play, so problem solved :-) Interestingly this was the highest voltage I could get from the external regulator dial (Hantarex 250 US PSU).
Incidentally I previously tried NeoSD in 3 NG boards and rebooting occurred in all, so it was definitely PSU voltage and not NG boards at fault. The frequency of rebooting increased as the voltage was lowered, and the NeoSD wouldn't boot at all at 4.6V, so it seems very sensitive to voltage.
Be careful as there might also be a problem on your PSU, as Gadget already stated.
You said you cranked the potentiometer on the PSU to the max to squeeze 5.2V, but that might fluctuate and go onto (much?) higher voltages and damage your board (although MVS boards generally don't have issues up to 5.5V)
A recap might be due, just to be sure, along with a replacement pot for the voltage trim.