Gregory's Server
 116 comments
anyway, let's try and get this machine running. i have a funny feeling the video isn't going to work right... sure enough, the machine chimes, but the video is blank. but i think i know what the problem is. sure enough, there's no PRAM battery. these machines need that battery or you won't get video! and we have working video! now for the most important question of the day: what version of Mac OS should i put on it? i'm going to create a SCSI disk image for my SCSI2SD using BasiliskII and the instructions at https://www.savagetaylor.com/2019/12/19/how-ive-setup-the-scsi2sd-that-i-use-in-my-lc-475/ @tubetime As a new hire at Apple I authored the 7.5 installer script. I moved on to doing software engineering on the OS by 7.5.3, but that always gives me a nice feeling to see it still running. before i can use the Apple IIe card, looks like i'll need to recap it. 😬  @tubetime I like to think you have a stock room full of capacitors. @tubetime I recapped my SNES a few months ago to protect it. Unfortunately I think it has some problems with one of the ICs. Graphics are all weird. Also replaced the vreg even though the output from that looked fine. I was having trouble because I was putting the *volume* image into the SCSI2SD rather than the *disk* image. turns out partition tables are important lol @tubetime Such a comforting boot screen. Diagnosing Extension conflicts not so much. I mean it's a large volume but should it really take an hour to mount? @tubetime wow I forgot all the partition options the Classic era disk formatting tools had. trying something else. unfortunately this didn't seem to work, I suspect the HFS partition needs to come before the ProDOS partitions. @tubetime any recommendations for 68000 emulators? I remember using one must be nearly twenty years ago now, but it had a nice gui with the register contents and possibly a few LEDs. Had to build a 68k dsp in college. Would love to play with some assembly again. @tubetime Never even crossed my mind that this was even a thing… 😮🥳  @tubetime @tubetime TIL modern 9v batteries use 3x 1/2 AA 3v cells and not 6x AAAA 1.5v cells anymore! @w4www_raker only the energizer lithium ones, the others use the weird thin stacked cells thing @tubetime @tubetime Thanks for this hint – my LC475 is working again now using the MacBatt PCB which replaces the lithium battery with a CR2032 coin cell https://www.tindie.com/products/siliconinsider/macbatt-cr2032-pram-apple-macintosh-battery/   @tubetime back in my Mac shareware days I had made an app that would warn people if their pram battery had died. Simply just by checking the date and warning if it was back to the default but people in computer lab situations found it useful at least!   @tubetime @bitsavers that was such a good form factor. I am partial to pizza boxes though |
yes, it's a Performa 475. i like the slim form factor.