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View Full Version : what chips do I order for my Neo Geo board



bretty
28th July 2006, 10:48 PM
I need to replace some chips on my Neo 1 slot board.Not sure what to order or where to get them.Pics show the 2 different ones I need.2 smaller chips have the number 5814 and the larger one has number 531024.
Do I just ask for those numbers ? Are they specially programmed or just straight off the shelf?
thanks in advance
Brett.

bretty
31st July 2006, 12:27 AM
Nobody can offer any assistance :unsure

humpalot
31st July 2006, 12:40 AM
The two smaller chips are RAM chips and the larger is the bios. I'll have a dig around tomorrow and tell you the replacement parts for the ram, the bios can be programmed using a 27C1024 eprom. The RAM and bios on a neo are the first things to go when you have a power spike, if it has gone any further than you can throw the board away.

mooncresta
31st July 2006, 06:30 PM
replacment ram is a 6116 you can get them from most arcade boards.
as for your bios chip you will need to program the unibios as humpalot mentioned on a 27c1024

Berty
31st July 2006, 07:14 PM
I got a spare 27C1024 that i can sell you, also has an older version of the uni bios on it at the moment

Mrvfone
31st July 2006, 09:35 PM
replacment ram is a 6116 you can get them from most arcade boards.
as for your bios chip you will need to program the unibios as humpalot mentioned on a 27c1024

From memory 2K * 8 are the 6116. You should be able to buy them new (worst came to worst) i know i have.. If you don`t have any luck with anyone else i`m sure i have some 27c1024's i could program for you with stock or the uni-bios if you get stuck.

I have some 6116's if you get stuck too...I would have to find out how much i bought them for. But very handy to have them in your "stock". Old motherboards used to use them for Cache.. Just incase you have some of these. Most 486's are 8k *8 or 32K * 8 from memory.... Theres a handy hint for you ;) Its a good place to find them!

Mrv,

bretty
1st August 2006, 12:37 AM
From memory 2K * 8 are the 6116.

Most 486's are 8k *8 or 32K * 8 from memory....

Mrv,
? what does that mean?
pms sent berty and Mrvfone.
thanks

Mrvfone
1st August 2006, 09:19 PM
? what does that mean?
pms sent berty and Mrvfone.
thanks

Arangment of the memory on the chip. Very important. Normaly how the chips are expressed in terms of size.

2k * 8 bits wide.

Mrv.

PS PMs sent as well ;)