Emax II Memory Update

[313ryans]

So wait, I just fixed my emaxii. It has 5mb of RAM instead of the 8 it used to have. Does all this mean it is still able to get to 8mb again? It is the earliest model# with obvious internal upgrades.

[313ryans]

In my excitement, I failed to see the "sold out".

[EmuHarvester]

Yes, I know this thread is old, but anyone that never made it to 8MB would probably still be interested.

http://zine.r-massive.com/e-mu-emax-ii-memory-upgrade-unlocked/

Apparently you can do the upgrade as many times as you want. Very cool.

[Stephencl]

Also, I have found a new vendor for the Dram. I have chips on the way now. Once I validate that I can take my machine from 4M to 8M using the new software program I will advise and provide the source of the chips. I don?t want to get everyone excited. They have approximately 400 chips in stock is my understanding. This is enough for about 10 upgrades from 4 to 8 mg.

I will post back next week.

Warm regards,

Stephen

[Mikke]

Hello EMAX II Guys,

Maybe someone can help me here..... ?

I managed to grab one of this old MemExpBoards ::!!
It is a REV B Board ?  It has the following PAL IC's mounted.

IP430, IP437, IP436, IP440
So in my opinion it is a 6MB Expansion for a 1MB EMAXII vor full most possible 7MB

My inquiries in some old PDF's etc. tell me the following about the PAL configurations on the MemExpBoard.

For a 2 MB EMAXII you can do the following steps.
2MB -> 4 MB with 2MB DRAM MemExpBoard and "Standard" PAL's IP430, IP432,  IP431, IP433
4MB->6MB with 2MB DRAM and "Standard" PAL's IP430, IP432,  IP431, IP433
6MB->8MB with 2MB DRAM and "Standard" PAL's IP430, IP432,  IP431, IP433

For a 1 MB EMAXII you can do the following steps.
1MB->3MB with 2MB DRAM MemExpBoard and the PAL's  IP430, IP437,  IP436, IP438
3MB->5MB with 2MB DRAM and the PAL's  IP430, IP437,  IP436, IP439
5MB->7MB with 2MB DRAM and the PAL's  IP430, IP437,  IP436, IP440

Can someone confirm this ??
Maybe someone can have a look at his 8MB EMAXII ??

So if i want to get my 2MB EmaxII (Model 2213) run with 8MB i have to get the
PAL IC's or PAL Files from IP432,  IP431, IP433.. !

A source for IP432,  IP431 i found in the net..

But has someone a IP433 Pal File or can burn a working PAL IC for me??

I will pay for it.. !

So please can anyone here help me ?

Best regards
Mikke