Installed unibios with NeoBiosMasta and all hell broke lose! help!

So today I get home from work and in the mail box waiting for me is a nice shiny new unibios 4.0, since my NeoBiosMasta came a few days ago I figured it would be a good time to pull the motherboard out and get to soldering. The NeoBiosMasta made the job so easy it only took about 10 min to get everything hooked up and back together. I took the motherboard back to the cab and plugged in good old Real Bout 2 and it booted up as normal, I held ABC and the unibios menu came up...great it works! I figured it would be a good idea to put a little hot glue over the solder points as extra strength. I power down the cab, take the game out, unhook the jamma harness and take the mother board back to the bench for a little glue. I put a few dabs of glue on the board and head back to the cab hoping to enjoy the new power my neo-geo holds! But instead I was greeted with this mess.View attachment 50154 After a few seconds of seeing that it came up with thisView attachment 50155 I tried turning it on and off cleaning the whole mother boards etc. Some times it would show the jumbled screen some times it wouldn't, sometimes it would give ram errors and some times it would give the illegal instruction screen. Some times it would let me boot in AES mode but nothing but a black screen would come up and if I held ABC to pull up the menu it would flash the menu but it wouldn't stay up or let me access it but ABCD would always let me pull up the memory card menu. It all seems so random, anyone have any ideas? it seems far fetched that a little hot glue would mess things up or blow up the ram. Here are a couple more screens that come up when booting.

If anyone has any ideas I would greatly appreciate it, or if you think its shot and time to get a new board that would be good to know too instead of pulling my hair out trying to figure it out.

Hot glue is not stronger than solder. I assume you've tried reseating the NBM?

Yes, twice it's on there right and tight.

I had a similar problem with a uni-bios before where it was the uni-bios malfunctioning. I only realized this was the problem by swapping out the unibios into another motherboard.If you have a 40 pin mvs stock bios handy,remove the unibios and swap in the stock bios and see what reults you get
BB

What mobo are you using? When I installed a NBM w/VMC in a MV1C there was no soldering required.

My best guess is the ghost of drakkon possessed your system when you performed a hot glue conjuring.

It is an mv-1b motherboard. The only soldering was the two wires going to the NBM and disabling the old bios...well drakkon needs to find something else to possess! He must not have heard me say the anti possession incantation before the ritual.

I could use one of those myself right now. I only have have the 2 wire version right now myself... The best thing to do is remove the smt bios completely that way if you get ahold of the NBM w/VMC it's easy for anyone to swap out.
BB

wyo said:

What mobo are you using? When I installed a NBM w/VMC in a MV1C there was no soldering required.

My best guess is the ghost of drakkon possessed your system when you performed a hot glue conjuring.

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BB, NTM has 'em back in stock.

madman said:

BB, NTM has 'em back in stock.

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I dont have any VMCs in stock right now, just regular NBMs.

You may want to re-enable the on board bios and see if it will boot back up. Raz may have info on the error message.

NTM, yes I think that is my next move. I was just hoping someone would see my issue and say "hey idiot you did this wrong" haha thanks for all the help guys.

Really not sure whats happening here. I do not think it is the bios for a couple of reasons (no bios error) and the workram error. This kind of points to something more hardware related, maybe something interfering as data is fetched from RAM. Have you tried cleaning the 68k before reseating the biosmasta?

Do you have an EPROM programmer?

Use a multimeter to check that your two wires are connected to the right spots. Check the neighboring pins everywhere you soldered to make sure nothing's bridged.

Thank you everyone for all your suggestions I really do appreciate all the help! I was pretty sure it was a hardware issue when I was troubleshooting and now I am 100% sure as my clumsy ass just ripped the 20 pins pad off the mother board. Time to hunt down another motherboard I guess. Raz, will this unibios work with any motherboard or do I need to get another MV-1b? I am really looking forward to trying it out.

Post a pic of your hot glue work, we might be able to see what's wrong.

Reseat the NBM, make sure its flat around the 68k

Macab0ne said:

Thank you everyone for all your suggestions I really do appreciate all the help! I was pretty sure it was a hardware issue when I was troubleshooting and now I am 100% sure as my clumsy ass just ripped the 20 pins pad off the mother board. Time to hunt down another motherboard I guess. Raz, will this unibios work with any motherboard or do I need to get another MV-1b? I am really looking forward to trying it out.

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Shoot me an email from your PayPal receipt. I'm not sure which order is yours.

Yes it will, although I think you should try and repair first.

Macab0ne said:

Thank you everyone for all your suggestions I really do appreciate all the help! I was pretty sure it was a hardware issue when I was troubleshooting and now I am 100% sure as my clumsy ass just ripped the 20 pins pad off the mother board. Time to hunt down another motherboard I guess. Raz, will this unibios work with any motherboard or do I need to get another MV-1b? I am really looking forward to trying it out.

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Did you rip 20 pins or just the pad for pin 20? If it's just the pad for pin 20, that's an easy fix.