Products >> Pinball Memory Modules >> 5101 NVRAM Module for Pinball Machines (also replaces 2101 RAM)

5101 NVRAM Module

No more batteries!

This is a Nonvolatile RAM (NVRAM) Replacement for the 5101 RAM used in pinball / arcade machines. Replaces a 5101, 2101 or compatible pinout 256 x 8 SRAM that has its data inputs and outputs connected together (ie. the majority of pinball boards and many arcade boards also). Please see the compatibilty list further down on this page for more info. These modules use CYPRESS F-RAM nvram ICs rated at 151-year data retention & 100 trillion reads/writes. Absolutely no batteries are needed to retain your high scores or game settings, you can remove them from your game. Machine pin headers are used on this module which are very durable and won't damage your socket at all.

Please note that on some games this will require removal of the existing RAM soldered to the board & installation of a 22-pin DIP socket (now included!!). Please see the compatibility list below for more info.

WHY REPLACE YOUR EXISTING RAM WITH NVRAM?
Unfortunately battery corrosion damage is much too common in games that used alkaline batteries for powering the RAM when the pinball machine is off. Many people have reported that even new batteries from major brands can sometimes leak after a year or two for no apparent reason. The corrosive alkaline can leak or wick into the board and over time will destroy the copper traces on the board and any ICs it comes in contact with. Don't let this happen to your game!


COMPATIBILITY
First of all, to figure out your manufacturer / boardset the easiest way is to check out the Switch Matrix Database and select your game. The manufacturer/boardset will be next to the name of the game. You could also consult IPDB.org search for this info. That will help identify what RAM you need and you can then check out the details specific to your board below.

BOARDSET DIFFICULTY RAM LOCATION NOTES
 
CLASSIC BALLY
(DASH-17, DASH-35, DASH-133)
EASY U8
(see picture)
Plug-and-Play installation, existing RAM is socketed. Simply swap out the existing 5101 SRAM for the 5101 NVRAM Module.
 
CLASSIC STERN
(MPU-100, MPU-200)
EASY U8
(see picture)

U13 also on MPU-200
No picture yet

Plug-and-Play installation, existing RAM is socketed. Simply swap out the existing 5101 SRAM for the 5101 NVRAM Module.

Note that on Stern MPU-200 games you will need 2x modules -- or you can use the Stern MPU-200 NVRAM Module.

 
WILLIAMS SYSTEM 3-7 MODERATE IC19
(pictures below)

Williams Sys3

Williams Sys4

Williams Sys6

Williams Sys7

NOT PLUG-AND-PLAY. Requires removal of existing RAM & installation of a socket! Williams System 3-7 games did not have their RAM socketed from the factory. Unless someone has replaced the RAM and installed a socket, you will need to remove the existing RAM IC and install a 22-pin 400-mil socket (we do not provide sockets at this time).
 
GOTTLIEB SYSTEM 80
(System 80, 80A, 80B)
MODERATE Z5
(see picture)
NOT PLUG-AND-PLAY. Requires removal of existing RAM & installation of a socket! Gottlieb System 80 games did not have their RAM socketed from the factory. Unless someone has replaced the RAM and installed a socket, you will need to remove the existing RAM IC and install a 22-pin 400-mil socket (we do not provide sockets at this time).
 
ZACCARIA GENERATION 1 EASY IC7
(see picture)
Plug-and-Play installation, existing RAM is socketed. Simply swap out the existing 5101 SRAM for the 5101 NVRAM Module.

*NOTE: EACH MODULE NOW INCLUDES A FREE 22-PIN IC SOCKET!


ARCADE GAME COMPATIBILITY

  • Defender
  • Omega Race
The 5101 DUAL CE Module should work with many arcade games that used a 5101 as long as the data inputs/outputs were tied together on the boards (many games did this).

Please keep in mind the difference between the "LIGHT" version and "DUAL CE" versions (explanation is below). These 5101 NVRAM modules ARE NOT COMPATIBLE with Gottlieb System 1 games since those machines utilized separate data inputs and outputs. If you have any questions about compatibility or otherwise related to this module, please contact me. I'll be glad to answer any questions you may have.

MULTIPLE VERSIONS OF THE 5101 MODULE ****PLEASE READ****

There are two versions of these 5101 NVRAM Modules -- "LIGHT" and "DUAL CE". Both use the same pcb, but the "LIGHT" version is slightly less expensive since it uses less comonents & there are a few manufacturers/boards that it won't work with. The "DUAL CE" version has the logic for handling both chip enable lines for the 5101 so it's a bit more expensive but will also work with Gottlieb Sys80 pinball machines, Williams Sys3-4 pinball machines & any other arcade/pinball games that utilized both chip selects. See the charts below for more info.

Select the "DUAL CE" module if using the NVRAM in a Gottlieb System 80 MPU, Williams System 3-4 MPU or Arcade Games.

5101 NVRAM "LIGHT"
  • Classic Bally (ie. Bally-17, Bally-35, Bally-133 MPUs)
  • Classic Stern (ie. Stern MPU-100, Stern MPU-200)
  • Classic Williams (ie. Williams Sys6, Williams Sys7 MPUs) *requires socket installation
  • Zaccaria Generation 1
5101 NVRAM "DUAL CE"
  • Classic Bally (ie. Bally-17, Bally-35, Bally-133 MPUs)
  • Classic Stern (ie. Stern MPU-100, Stern MPU-200)
  • Classic Williams (ie. Williams Sys6, Williams Sys7 MPUs) *requires socket installation
  • Zaccaria Generation 1
  • Classic Williams (ie. Williams Sys3, Williams Sys4 MPUs) *requires socket installation
  • Gottlieb System 80 (ie. System 80, System 80A, System 80B) *requires socket installation
  • Arcade Games (Omega Race, Defender, etc)

--- NOTE ON BOARDS REQUIRING SOCKET INSTALLATION ---

Boards listed as "*requires socket installation" above (just WILLIAMS mpus at this time) will likely require the existing SRAM to be desoldered/removed from the board and a socket installed in its place. If you do not have proper equipment or experience to desolder ICs and install a socket, this mod may not be for you. Again of all the manufacturer's MPUs listed in the compatibility list above, only Williams MPUs would require socket installation. All other MPUs had sockets installed from the factory so they *should* be an easy swap with the existing RAM. If you're installing into a Williams MPU, please be aware of having to unsolder/remove the existing RAM chip and install a socket. Before purchasing the nvram module and understand the risks involved in attempting to upgrade your board. Any attempt to modify your board is AT YOUR OWN RISK. If you aren't comfortable with performing the modifications (should your board require any for nvram installation), please seek professional installation or use a remote battery pack instead.

NVRAM is shipped in anti-static foam & anti-static bag inside a small USPS First Class Mail box. Installation instructions are included.


Option #1: 5101 NVRAM Module "LIGHT"
**DOES NOT WORK WITH GOTTLIEB SYS80 OR WILLIAMS SYS3-4**
Price: ON SALE! - 14.95 each or less, regularly $18.95 each
Bulk Discounts Available. See below.

Quantity:
Include Free IC Socket Per Module?


Option #2: 5101 NVRAM Module "DUAL CE"
Dual CE version is compatible with Gottlieb System 80 and Williams System 3/4
Price: ON SALE! - 15.95 each or less, regularly $19.95 each
Bulk Discounts Available. See below.

Quantity:
Include Free IC Socket Per Module?


SHIPPING AVAILABILITY
  This item ships only to United States, Canada & Australia

SHIPPING INFO
Items are shipped from the United States. ASSEMBLED "Pinitech" PCBs are manufactured in the US and are currenty only shipping to the United States, Canada & Australia. DIY Kits and Bare Boards may be available to other international customers. See below for details.

Australia, Canada Customers:
As of March 2017, there is now a $25.00 minimum order (excluding shipping fees) for international orders due to postage costs. You may still submit an order via the shopping cart at this time, but please note that some orders may not be accepted if they don't meet the minimum order amount. This may change in the future to orders via email only.

All Other International Customers:
Paypal is configured to only allow direct orders to the United States. We also ship to Australia & Canada (see above). Some items may be available as DIY Kits to other countries. Contact us for details if you are outside of the United States, Canada & Australia and interested in DIY Kits. There is a $25.00 minimum order on international orders.


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