Emax

Is it possible to move a 2MB upgrade from an emax ii to another ?

Not really, among other things you would need to transfer the PALs and have the fabled 
install disk.

On 3 Dec 2001 at 4:11, bishop1973ar@... wrote:

> Is it possible to move a 2MB upgrade from an emax ii to another ? 
> 
> 
> 
> Emax and Emax II User's Group
> 
> http://www.silveriafamily.com 
> 
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ 
> 
> 


John Silveria II
AIM: EmaxJS
The Silveria Family Website
Emax and Emax II User's Group
http://www.silveriafamily.com

Hi,
Depends. Some upgrades need a PAL chip (see our web site for details), but
all need the OS upgrade diskette - which tells the OS of the new memory
size. Sound Logic still sells 2MB upgrades and they have the fabled upgrade
diskette too - which they can copy.

A better idea is to simply swap the digital board completely from one Emax
II to the other. No problem...provided the board works okay!

Sound Logic web site is here (but seems to be out of action).
http://www.ramona.com/Soundlogic/slogic.html


Regards

Rob
The Emulator Archive
www.emulatorarchive.com


  Is it possible to move a 2MB upgrade from an emax ii to another ?




[Non-text portions of this message have been removed]

Rob,

I've already thought about swapping the mainboards. The problems is 
that one is a keyboard and the other is a rack, so the boards are 
slightly different (scsi port, etc).

I don't have a upgrade disk, but coming from the pc world, i thought 
that what the disk does is a like bios update, so i could swap the 
bios chip from one emax to the other.

PS1: Sorry for my poor english.

PS2: The link to soundlogic seems to be dead.

Hi, The last phone number I had for Sound Logic was 800 753-6558. I upgraded my Emax II to 7 MB from 3MB. The biggest problem is to have the memory expansion board and the PALs. If the EMAX II is >3mb the expansion board is installed. Some newer Emax IIs have the correct chips in to just install the chips and upgrade disk to update the EEPROM.  Memory chips are easy to obtain from JDR Microdevices or Jameco electronics. Mik at Sound logic was able to send me 2 of his kits. I ended up buying the PALs from EMU @ $25.00 ea. If you are upgrading a 1 MB unit it probably don't have a memory expansion board in it. The install disk writes to an EEPROM and is copy protected. You only get 1 2MB upgrade per disk. My upgrade was very tricky as my Expansion board was minus about 3 logic ICs which address the memory chips. I had to find the chips and add sockets remove jumpers to accept the extra 4 MB of memory I needed to install. Needless to say it was not a job for a novice technician. Take a good look at the two logic boards as they may be interchangeable by removing cable connectors and such. I think what Rob is telling you will be a whole lot easier than unsoldering the EEPROM and taking a chance at destroying the board. Then you may have 2 dead units! Mik at Sound Logic also has a info and fax number of 760-787-9632
Best of luck to you,
Skip

  ----- Original Message ----- 
  From: bishop1973ar@... 
  To: emax@yahoogroups.com 
  Sent: Monday, December 03, 2001 5:52 PM
  Subject: [emax] Re: Memory upgrade


  Rob,

  I've already thought about swapping the mainboards. The problems is 
  that one is a keyboard and the other is a rack, so the boards are 
  slightly different (scsi port, etc).

  I don't have a upgrade disk, but coming from the pc world, i thought 
  that what the disk does is a like bios update, so i could swap the 
  bios chip from one emax to the other.

  PS1: Sorry for my poor english.

  PS2: The link to soundlogic seems to be dead.




        Yahoo! Groups Sponsor 
              ADVERTISEMENT
             
       
       

  Emax and Emax II User's Group

  http://www.silveriafamily.com 

  Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. 



[Non-text portions of this message have been removed]

Skip,

Thanks for your advice. I thought that the EEPROM could be socketed, 
so i could swap it too. But i don't want 2 dead units, that's for 
sure.