Hi all.
I’m looking for some technical details regarding the Applied Engineering RamFactor. I recently picked up a board along with its RamCharger module. The card is currently installed in slot 5 of an Apple IIgs ROM 03. I also have an Enhanced IIe available, but I haven’t started testing on that system yet. Slot 5 on the IIgs is configured as YOUR CARD. The board appears to be functional even under these conditions. The RamCharger is currently disconnected, so no tests on that yet.
Q1: I’m looking for the RamFactor firmware v1.4 image. If anyone can point me to a verified dump, that would be ideal. I have EPROM programmers, so burning a 27C64 is trivial. Does the board require a 27C64 specifically, or will a standard 2764 (any manufacturer) behave correctly? Any known timing‑sensitive issues with certain EPROM families?
Q2: I’m interested in sourcing the piggyback expansion module to bring the board up to 4 MB. The original AE daughterboard is extremely scarce. I know that some members here have produced compatible clones. Are any units currently available?
Q3: I need the exact battery spec used by the RamCharger. Any confirmed‑compatible model/part number would be appreciated. Haven’t started digging into this yet.
Q4: As far as I can tell, GS/OS 6.0.4 only exposes a single RAM disk at a time due to system‑level constraints. I’ve seen references to custom drivers that bypass this limitation. If anyone has links to those drivers or archived copies, I’d appreciate it.
I’m aware that the IIgs is not the ideal host for this board. My plan is to move all testing and actual use over to the IIe.
Thanks in advance for any technical pointers.
I have the 1.4 ROM on my google drive
https://drive.google.com/file/d/0B9r6vH-4NK4NMDY3Y2M1OWUtMWEwOS00OTA2LTk0ZWItZDFkODFlZGYzZDhj/view?usp=drive_link&resourcekey=0-zQDqGFZ-hGx8Rsxpk-CXhw
20260510_080151.jpg
The V1.4 ROM is here.
The images of the RamCharger internals show a SLA (sealed lead acid) type battery and a power supply. To supply 5 V for the Dynamic RAMs, it needs to be a 3-cell type (nominal 6 V, up to 7 V) with a LDO linear regulator to maintain 5 V output. The 3.6 V batteries used for clock/calendar backup are not enough.