MAMEWorld Forums - EmuChat - Re: Robotron: rom error 4 ??

> > Tonight I had what looked like an enforcer bug event - although I was about center,
> > and the enforcer was off-center, lower-left - but the really strange thing was the
> > game stuck, CD-clipped the 'wah-wah-wah-wah-wah' for a few seconds, and *then* it
> > reset, and eventually I got a screen saying "rom error 4".
> >
> > THEN, in another game, it just blitzed, and showed me this horror below.
> >
> > So what's going on?
>
> The way that original PCB ate through RAM, it wouldn't shock me if the code was
> secretly designed to eat memory. RED_ROM...RED_ROM....

The original pcb ate through ram because it used 4116 drams, which not only get very hot but also use 12v, 5v and -5v and need the power rails to be activated and deactivated in a very specific order or else the ram overheats even more than usual and eventually dies. I don't know if the pcb did this correctly or not. The pcb can be fairly easily modded to use 4164 drams instead which only use 5v, and run much cooler and hence last a whole lot longer.

LN

"When life gives you zombies... *CHA-CHIK!* ...you make zombie-ade!"