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.

SE/30 32-bit question

Posted by: belaboy on 2018-04-22 11:59:14 So I acquired a Macintosh SE/30 this weekend, it was recapped, upgraded to 68MB RAM and had a SCSI2SD interface set up. Unfortunately I was naive enough to think a few months of watching YouTube videos would prepare me in handling this. I tried flashing a BasiliskII image onto the SD card thinking it would boot from there, but I guess formatting it raw like that removes the SCSI drivers, so the system doesn't read it. After finding the thread on initializing SCSI2SD on here, I realize I have to begin from scratch. I placed an order for the 7.3.5 Disk Tools disk set and began prepping for the fresh install, but then I started wondering about the 32bit processing and RAM. I know by default, the machine is 32-bit dirty, and has to be "cleaned" with MODE32 or a ROM upgrade. The thing is, I'm not 100% sure what the original owner did. So my question, assuming the ROM isn't 32-bit clean, will the OS fail to boot with the 68MB installed? There are 4 16MB and 4 1MB RAM sticks, so would I have to remove the 64MB RAM before proceeding? Honestly, how should i go about doing this in general? Not sure if it's helpful, but I'll just toss in a picture of the system info prior to me messing things up haha. Thank you

Posted by: mpe on 2018-04-22 12:22:53 The system should boot fine but there will be only 8 MB of RAM reported.

Posted by: belaboy on 2018-04-22 12:23:52 ok, thank you!!

Posted by: EvilCapitalist on 2018-04-23 05:29:30 If it's got a SCSI2SD card in there you'll have to use that utility to partition the drive(s).  If you try and use any of the Apple tools, even the patched Drive Setup, it's only going to let you reformat whatever volume was existing if it works at all.  If you want to add additional volumes to the SD card you'd need to add them through the SCSI2SD utility. One quick way to check what the previous owner had done is to grab the part numbers off the ROM SIMM.  If the SIMM doesn't have the Jolly Roger on it you've got an Apple (likely stock) ROM.  If you search by part number you can find whether it's the stock SE/30 ROM or one from a IIsi or IIfx.

1