Emax

Hi all, 

It seems like this board is full of knowledge, so here are two (hopefully) easy questions from an E-mu newbie:

1 - How do I make an OS disk?  I keep getting "disk not formatted" errors even after formatting on my PC.  Do I need 720 KB floppies?

2 - What does the 8 MB daughter board look like?  I just popped the hood on my new EMAX and it appears that it's fully loaded.  There's a board stacked on the main board labeled "PC357 REV B" and 4 rows of 12 "KM44C256P-7" SRAM chips on it.

Please help me out... can't wait to hear this thing!!

Later,
Everett

1 - How do I make an OS disk?  I keep getting "disk not formatted" errors even after formatting on my PC.  Do I need 720 KB floppies?

Emax will not recognize a normal PC formatted disk. Download Esynthesist's very usefully program (again, thank's Esyth) EMXP and use it to format and install an OS onto the disk. The program and OS disk image files can be downloaded in the "Files" section of this forum.


> 2 - What does the 8 MB daughter board look like?  I just popped the hood on my new EMAX and it appears that it's fully loaded.  There's a board stacked on the main board labeled "PC357 REV B" and 4 rows of 12 "KM44C256P-7" SRAM chips on it.

Don't have one myself, so can't be sure but it sound's like you do have the daughterboard, and with 4 rows filled you should have either 5 or 6 MB depending on what the emax had on the main board.

Thanks, I'll give that a try!  One more note... There are two resistors on there that say "CUT = 5 MB" and "CUT = 7 MB".  I'm guessing this is some kind of addressing jumper if you don't have all the banks filled.  I know something about electronics, but not about this box.  Any experience here?

> > 2 - What does the 8 MB daughter board look like?  I just popped the hood on my new EMAX and it appears that it's fully loaded.  There's a board stacked on the main board labeled "PC357 REV B" and 4 rows of 12 "KM44C256P-7" SRAM chips on it.
> 
> Don't have one myself, so can't be sure but it sound's like you do have the daughterboard, and with 4 rows filled you should have either 5 or 6 MB depending on what the emax had on the main board.
>

If you go here:
http://www.emulatorarchive.com/Archives/Manuals/manuals.html

The manual for the memory upgrade can be downloaded and describes what is actually done to the machine for each upgrade. Hope it helps.

That was great information, thank you!  Looks like I have the 6 MB update board installed since I have both of the resistors in place.  Once I get it booted I can verify that using the instructions in the upgrade manual.  What an unexpected score!

--- In emax@yahoogroups.com, "tx_marshal" <marshal@...> wrote:

>
> If you go here:
> http://www.emulatorarchive.com/Archives/Manuals/manuals.html
> 
> The manual for the memory upgrade can be downloaded and describes what is actually done to the machine for each upgrade. Hope it helps.
>

I get 4194260 by pressing Master 2, so based on the "doubling" rule it looks like 8 MB.  Sweet!