System 3
Barb Wire
Bell Ringer
Bullseye
Cactus Jack's
Car Hop
Caribbean
Cruise
Class of 1812
Cue Ball Wizard
Deadly Weapon
Frank Thomas'
Big Hurt
Freddy A
Nightmare on Elm Street
Gladiators
Hoops
Lights...Camera...Action!
Mario Andretti
Nudge-It
Operation:
Thunder
Rescue 911
Shaq Attaq
Silver Slugger
Stargate
Street Fighter
II
Strikes 'N
Spares
Super Mario
Bros.
Super Mario
Bros. Mushroom World
Surf 'n Safari
Tee'd Off
Title Fight
Vegas
Waterworld
Wipe Out
World Challenge
Soccer
NvRAMs
are another option, they aren't always the simplest or the most cost
effective. For one, they don't preserve the function of the Real Time
Clock (RTC). While it's not a necessary function for most games, I
believe that most collectors want their games to function as designed.
Also not all RAM chips are socketed making installation more difficult.
If the RAM is socketed, it could still have acid corrosion or be worn
out and not hold the NvRAM tightly. NvRAMs can and do fail. I understand
batteries die, but they are much simpler and cheaper to replace.
Another
option is remote battery packs. To me this is the most ridiculous
solution. When the board has to come out for service you either have to
disconnect it meaning all of your settings are going to be lost, or
you'll have to work on the board with a battery pack flopping around.
And if you think a remote battery pack is going to save you from acid
damage, it won't. It will only buy you time. I have seen several
instances where acid has traveled up the wires.