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  1. alectrona6400

    Interware Booster CV 40 - Doesn't work on SE/30

    the IIvx and IIvi (also the performa 600) are some weird machines... funny thing is they're not actually based on the macintosh II series architecture and run a 32MHz CPU on a 16MHz data bus (and the IIvi ran a 16MHz CPU) which really hampered performance. at least you can apparently swap the...
  2. alectrona6400

    macintosh IIsi 4MB onboard RAM upgrade

    yeah, you really wanna make sure nothings left unchecked, especially if you're using cheaper equipment thats not exactly rohs certified.. lol. checked my SE/30 reloaded board that doesn't work with my microscope today and it's a HOT MESS! you really gotta be careful using solder paste, but its...
  3. alectrona6400

    $37 USB Microscope on Amazon..Great results!

    i mean its a heck of a deal considering how expensive the professional grade ones are... and also more expensive ones used for repairs. this is really going to help me out... especially with stuff like my se30 project which is getting quite rough, and now i see why i'm having issues. soldering...
  4. alectrona6400

    $37 USB Microscope on Amazon..Great results!

    damn, the quality on this is impressive! what matters a lot is definitely the optical zoom... its perfect for what i'm doing. here's a test photo i took with a clean, but 32-bit dirty SE/30 ROM SIMM. lol
  5. alectrona6400

    IIsi onboard ram replacement

    yeah, its better if you have a discrete video card because you'll be using more shared memory when using the onboard video. speaking of which whats a good cheap card for the IIsi? ...assuming its not gonna be cheap anyway, because apple hardware. lol
  6. alectrona6400

    Just got a Macintosh Classic ii

    honestly chances are anything that runs on a 68030 will run on system 7.1. 7.5.x gets a huge hit in performance, though you could strip it down. i do like the control strip in 7.5.3, wondering if that can be backported to 7.1 myself...
  7. alectrona6400

    Katheryn's Macintosh SE/30 saga

    welp... already finding a lot of things i screwed up on. this doesn't seem like its totally bridged, but theres quite a shocking amount of paste that didn't get heated through. yeaaaahhh definitely invest in a microscope for one of these projects. if you're doing it without one, you'll screw up...
  8. alectrona6400

    macintosh IIsi 4MB onboard RAM upgrade

    yeah, its definitely not the only thing to use. thats why i said you'd want to touch up the joints to be sure that everything is making contact and that no bridges are made. you also wanna make sure any stray solder is not present because that can really mess up your day if left unchecked...
  9. alectrona6400

    macintosh IIsi 4MB onboard RAM upgrade

    the area around the ram chips is kinda discolored because of the crappy flux i used the first time i tried doing this... its a pain to get off but i don't wanna mess with it again. also yes, i did try thinkin things 2 on this outta boredom... it does not run well on a 25mhz 68030 even with the...
  10. alectrona6400

    IIsi fault ...

    just noticed the coin cell socket, should try that even though my IIsi already has a working half AA pram battery because i just replaced it ;)
  11. alectrona6400

    Pin-out M7783 power supply Duo 230

    afaik the duo does share the same plug as the infamous yoyo charger (which costs more than getting an ibook g4 with the charger included nowadays) but i did notice the duo's PSU is 36W(?) as opposed to 45W which the other 3.5mm barrel chargers used. perhaps the pinout is also different on the...
  12. alectrona6400

    IIsi onboard ram replacement

    hate to necropost but 1MB isn't your only option if you're insane like me. you can actually get 4MB to work with the right chips (they have to be 4bit, not 1bit) and i did this recently because i "have too much unsupervised free time" according to some guy in a public tech discord server i was...
  13. alectrona6400

    macintosh IIsi 4MB onboard RAM upgrade

    so i know a few people have talked about this, and i am also one of the 2 people who tried this recently. any IIsi owner knows these things: the power supplies LOVE to crap their guts out with ELNA caps if not recapped, the speakers drop occasionally because of a strange design, and... the...
  14. alectrona6400

    Katheryn's Conquests!

    got it up and running yesterday with a working CD-ROM external drive that i put together with an old enclosure, an 8x applecd, and a scsi cable from a dead lacie enclosure (which i got rid of a long time ago... and the drive in there doesn't play well with 68k macs but it DOES still work) and i...
  15. alectrona6400

    PowerBook 540c screen issue

    perhaps, yeah. screens for laptops this old can be super hard to find.... so you'd likely have to spring for a donor unit. or you can find the model of your panel and find the replacement panel for it, i suppose.
  16. alectrona6400

    SE/30 Board Mystery Issue

    yes, that usually means a successful boot... but i would check your video PAL, UE8, and the TMS4461 chips... do you get no video at all or do you just get the horizontal jail bars?
  17. alectrona6400

    PowerBook 540c screen issue

    ahhhh. didn't know they made active matrix models before the 5300. the cable could be the issue given the line pattern, and the CCFL bulb is probably on its last legs with the flickering (or the inverter is faulty).
  18. alectrona6400

    Interware Booster CV 40 - Doesn't work on SE/30

    yeahhh i think you'd need a 32 bit clean ROM. IIci and IIsi are 32 bit clean, whereas the SE/30 is not along with the macintosh IIx and IIcx it was designed from. either way it may be routed differently so the card may not work regardless of your ROM on an SE/30.
  19. alectrona6400

    PowerBook 540c screen issue

    those screens suffer from faulty capacitors iirc... might wanna take a look at those
  20. alectrona6400

    SE/30 Board Mystery Issue

    the reloaded is a 4 layer board whereas the original is 6 layer if i recall correctly...
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