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  1. Trash80toG4

    ADB KVM Switch - Thoughts?

    Very cool project! Love the modular expansion option. I'm curious about the need for a microcontroller/Pi in the design at all? If it's for KBD/Mouse emulation for the offline machines that makes a world of sense? Otherwise a simple dumb TTL gate logic setup could be breadboarded for testing...
  2. Trash80toG4

    Documentation for DB15 to VGA adapters

    https://68kmla.org/bb/index.php?threads/video-adapter-docs-scan-dump.24012/ LMK which of these adapter docs you might want me to look for in the Video Drawer.
  3. Trash80toG4

    Strange Plus Mod?!

    Can't think of what they were called offhand, but bucket could be from one of the security hardened setups for Alpha-Bet Soup Agencies. Backside and front bezel had cover plates while the sides looked stock, copper on the inside of the bucket makes sense for that.
  4. Trash80toG4

    6100/G3/HPV Turbo Cooler Hack

    Off today and the chassis was just sitting ther on the bench upside down, so a bit more about the 6100's cooling intake setup: S-curves on both sides constrict the surface area of the outlet from the large, low pressure intake grating that's pulled into the system by the PSU fan. This...
  5. Trash80toG4

    6100/G3/HPV Turbo Cooler Hack

    Finished documenting the installation/mods before work. :) Sled/chassis interface seals the top surface pretty well as is: Detail of sled parts removed. Dunno if it's the correct sled, but found one I'd already modded a bit to hack up some more. Sled/fan assembly is integrated into the...
  6. Trash80toG4

    6100/G3/HPV Turbo Cooler Hack

    Lets start off with a trick I came up with to remove the %$#% plastic "inner chassis" without breaking anything. Had I been a little bit quicker about it I'd have wicked 3-in-1 oil down the members sitting on the oxidized bottom plate of the chassis. :rolleyes: No harm done, I used some handy...
  7. Trash80toG4

    6100/G3/HPV Turbo Cooler Hack

    Bottom of the 6100 case is metal. Holesawn vent cutout won't affect any vertical load bearing members. ;)
  8. Trash80toG4

    6100/G3/HPV Turbo Cooler Hack

    Thanks, the original concept would have pulled a bit more air through the intake grate under the HDD, passing it out a vent in the backplane cover plate in a straight thru shot. That would probably work, but in thinking about more I came up with a bit more radical approach? The aim of this...
  9. Trash80toG4

    6100/G3/HPV Turbo Cooler Hack

    Been very slowly putting together my maxed out 6100 and this little goodie arrived yesterday: Hole saw mod to plastic chassis required as well as ductwork underneath to funnel entire clipped corner square vent grid into the intake of the blower. May fab it as five sided pyramid with plans...
  10. Trash80toG4

    How Does One Explain The Difference In The Size & RAM Usage Of Modern Operating Systems?

    Dunno, it seems a blur to me. "As we know it" is a slippery slope in terminology, covering a whole lot of the ground in question. Big Iron->Mini conversion started from the very early Sixties. I'd say some version of UNIX might be considered the starting point, becoming Linux and Mac OSX of...
  11. Trash80toG4

    How Does One Explain The Difference In The Size & RAM Usage Of Modern Operating Systems?

    Great explanation, to push it even farther back in history: In ancient times when my dad was a systems engineer at IBM, resources were incredibly tight. As he explained it, there was no operating system at all, each program running standalone on the computer at machine level on what really was...
  12. Trash80toG4

    Reverse Engineering the Macintosh IIcx Logicboard

    Nice! Time to experiment with the stretch version when I get a chance . . . and find the dang file folder. :oops:
  13. Trash80toG4

    For What Do You Think The Classic II ROM Expansion Was Intended?

    Does the Classic II boot from ROM as does the Classic? If not, ROM on that interface might be a great place for a customized startup System, data a/o a few system maintenance applications.
  14. Trash80toG4

    iMac G4 Appreciation Thread

    Found some info/pic: https://www.chicagocomputersupply.com/vitrvt32grad.html General info: https://www.notebookcheck.net/Review-External-Graphics-Cards-for-Laptops.112162.0.html
  15. Trash80toG4

    iMac G4 Appreciation Thread

    Yah, breaks in the usual direction. Hobble the low end so as not to steal sales from the high end syndrome at its worst. I'm wondering if the iLamp's AirPort card slot might support the VTBook** laptop vidcards I snagged a while back? They've got some crazy specs. Never did find OS9 drivers for...
  16. Trash80toG4

    BlueSCSI v2 Pico - Low cost, open hardware, fast SCSI device!

    Fast Narrow SCSI? WOW! What kind of throughput do you think you'd achieve on the Rocket's Fast/Narrow SCSI II DaughterCard? Love the project overall, maybe with tax return . . .
  17. Trash80toG4

    iMac G4 Appreciation Thread

    My first gen G4/OS9 only supports mirroring at a pathetic 800x600 on that port. Which one are you using and in what generation was extended desktop hacked or released as a standard feature? Are any resolutions supported that would do your Cinema Display justice?
  18. Trash80toG4

    iMac G4 Appreciation Thread

    I've got the original iLamp I'd love to play with at some point and another that's hobbled by intentional X-ONLY infestation. For me it's more of a beautiful industrial design curiosity than a usable computer. If I could hack a PCI VidCard into the optical cubic I'd put it on my desk KVM'd to...
  19. Trash80toG4

    Macintosh SE or SE/30 Fan Bracket

    Very, very nice development! Welcome aboard, terrific intro post. :)
  20. Trash80toG4

    Fast EtherNet NIC on FireWire interface? Possible, Practical, Silly Notion?

    Interesting, too bad you need a host as your NIC though. But thinking along the lines of something that could have been available in the day here. If the CSII riser and NIC are eliminated, their cubic then becomes available for a custom PCI twin slot riser. TEMPOtrio is now working on Gazelle...