How do you know if its the orginal Macintosh M0001 model? — #36
Anonymous Freak – check this out regarding 128K SIMMs.
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D-OH! :I
Obviously I was wrong on the capacity of the individual SIMMs, but I was also wrong on t…
Found 10,845 posts across 1 forum.
How do you know if its the orginal Macintosh M0001 model? — #35
If you just want a functional compact Mac, then you would be better to get a 512k or 512ke motherboard until you can manage to get your hands on a 128k motherboard. The 128k is a v…
How do you know if its the orginal Macintosh M0001 model? — #34
It's my understanding that the SegmentLoader only read program segments FROM the floppy disk, and didn't write them back to the disk. Is that true?
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Usually s…
How do you know if its the orginal Macintosh M0001 model? — #33
I have to say that it will be a lot of work to get that board back to original condition or at least functionally original. The missing chips will have to be found and if the RAM o…
How do you know if its the orginal Macintosh M0001 model? — #32
With 128K the OS is forced to swap out program segments to the 400K floppy, and it is SLOW!
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It's my understanding that the SegmentLoader only read program se…
How do you know if its the orginal Macintosh M0001 model? — #31
To get the board to work (as 128K) you need to plug 74LS244s into the 2 big sockets, and resistor packs into RP2 and RP3. The resistor packs need to be 10 pins each with 5 individu…
How do you know if its the orginal Macintosh M0001 model? — #30
Now as you can see from the pictures, there are two chips missing/removed from the mobo. My question is, can i still start(power on) this mac without the MacMemory RAM board? ... D…
How do you know if its the orginal Macintosh M0001 model? — #29
Your Mac shows 512K because it has the original 64K ROMs most likely. You actually have 1.5MB of RAM installed, it looks like. The mobo RAM chips have probably been replaced upgrad…
How do you know if its the orginal Macintosh M0001 model? — #28
I have some spare 64K ROMs from dead boards, I should give it a go. Surely it couldn't damage anything?
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It ought to be safe. The 64K ROMs will only recognize…
How do you know if its the orginal Macintosh M0001 model? — #27
I believe this details the procedure:
http://68kmla.org/files/classicmac2.pdf
I have no idea if the 128K SIMMs work with any Mac.
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Now if only you had…
How do you know if its the orginal Macintosh M0001 model? — #26
...After you remove the RAM board, make sure you adjust the voltages which will fluctuate after removing the draw of the expansion board.
...
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How do I adjus…
How do you know if its the orginal Macintosh M0001 model? — #25
I have no idea if the 128K SIMMs work with any Mac. I suppose I could try, though. At worst, it'll beep at me. (I could try it in pair with a couple known-size SIMMs, it would b…
How do you know if its the orginal Macintosh M0001 model? — #24
Agree with H3NRY. Almost all upgrade cards required 512K on the motherboard. However, correct me if I'm wrong H3NRY, a few bypassed the logic board altogether? It would be the exce…
How do you know if its the orginal Macintosh M0001 model? — #23
The SE/30, with its eight banks, could do 1.5 MB, as 4x256 and 4x128, although I don't think 128s were officially supported, and were exceedingly rare. (I think I have two of them,…
How do you know if its the orginal Macintosh M0001 model? — #22
2x256+2x1MB,
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Of course, that's 2.5MB! :I
How do you know if its the orginal Macintosh M0001 model? — #21
I recall the Plus supported 256KB SIMMs and 1 MB SIMMs, in any combination of pairs. So 2x256 (which would be strange, since it's lower than it shipped with,) 4x256, 2x1MB, 2x256+…
How do you know if its the orginal Macintosh M0001 model? — #20
What is the possibility that the mobo RAM chips were not upgraded to 512K?
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It is possible, but since it was much more common to upgrade the motherboard than …
How do you know if its the orginal Macintosh M0001 model? — #19
Your Mac shows 512K because it has the original 64K ROMs most likely. You actually have 1.5MB of RAM installed, it looks like. The mobo RAM chips have probably been replaced upgrad…
Power Mac 9500 startup woes — #34
"Software for processor cards in PCI power macs is not *required* since it replaces the original processor. It will run just fine, except Apple System Profiler may not display the …
Power Mac 9500 startup woes — #33
Success!
It turns out that the problem was two-fold: first was the PRAM battery, second was a SCSI conflict. Both are two really newbie mistakes which shouldn't have taken 5 month…
512ke rare? — #18
Nope. No green lights inside a stock "Macintosh" or an OEM upgrade. If you have one, there's something undeniably foreign inside there. Can't imagine why there would be one inside …
512ke rare? — #17
Should a 'Macintosh' show a green light in the drive bay?
512ke rare? — #16
JDW, that's if you have a boot floppy present. Just looking at the machine, assuming it doesn't power up, or don't have access to power. If it does power up and you don't have a 40…
Greatest Tip Shop score EVER!!!!!!!!! Sage iMac DV+!!! — #22
Awww, man. That Goodwill maintains a museum. Guess where all the really good vintage stuff goes.
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Yeh, but they have more S-100 and pre-1980 stuff than they c…
Greatest Tip Shop score EVER!!!!!!!!! Sage iMac DV+!!! — #21
My choice on the G3 iMacs would be:
Slotloaders: OSX
TrayLoaders: 9