68kMLA Classic Interface

This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.

Click here to select a new forum.
LC1/2 Roms in a Macintosh II mainboard?
Posted by: uniserver on 2013-12-10 22:44:21
hey guys i have a Macintosh II Mainboard here..

i'm about ready to do a re-cap on it. the only thing that might keep me from making it work is , the 4 ROM Chips are missing.

I know the LC1 and LC2 have 4 chips for rom same as the Macintosh II.

Can anyone think of a reason why maybe i should not run LC rom's in a Macintosh II main board?

IMG_0799.JPG

Posted by: Macdrone on 2013-12-10 23:02:19
I think I have a bad II board that I may be able to pull the chips you need.

Posted by: uniserver on 2013-12-11 01:40:47
wow thanks man!

Posted by: uniserver on 2013-12-11 01:43:03
still curious about the LC I / II roms though πŸ™‚

Posted by: olePigeon on 2013-12-11 09:55:22
I may have an extra set of LC ROMs you can have. I think I pulled them from one of my botched LC mobos. I'll need to rummage through my crap.

Posted by: uniserver on 2013-12-11 10:00:09
no problem man, i could just pull some out of one of my dead lc-2's

hey i just realized the chip FDB UB13 is missing… might have been for air flowed off. or maybe it was never suppose to be there?

Posted by: bbraun on 2013-12-11 10:39:43
Isn't there solder points for a ROM SIMM socket underneath those DIP sockets? Desolder the DIPs and solder in a ROM SIMM socket, and use a dougg3 ROM SIMM! πŸ™‚

Posted by: uniserver on 2013-12-11 10:54:31
yeah there is πŸ™‚

hard core.

πŸ™‚

i will think about it πŸ™‚

Posted by: MidnightCommando on 2013-12-22 19:29:33
Man you should change the Apple HMMMU (I think that's the abbreviation? It's that black thing.) to a Motorola 68851, so you have a complete set of Motorola purple-and-gold in there πŸ™‚

Posted by: techknight on 2013-12-22 19:38:16
Missing the IWM too it appears.

Posted by: MidnightCommando on 2013-12-23 20:09:03
Apple HMMMU (I think that's the abbreviation? It's that black thing.)
Friend Comrade LCGuy advises that it's called a PMMU.

This is why I'm not allowed near 68020 machines. :lol:

1