Update:

We received Gregory's MK2 Empeg back and did a few tests. It sigkills with anything but the first 16 megs of RAM and maxes out at 48 megs whether or not the 4th DIP switch is set to on or not. All connections are as they were when the mainboard left here when it was running happily at 64 megs. We resoldered all the holes several times, but with no change.

It seems that some traces under the memory board may have broken due to flex when the the board was installed into the case. At this point I don't see that anything can be done to improve this Empeg's memory count.

Attached is the bootlog with DIP switch 1 set to on with the other 3 off. This is the only position that the player will boot in.