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  1. O

    That's an SMA connector footprint. I'm guessing it was used for signal integrity validation...

    That's an SMA connector footprint. I'm guessing it was used for signal integrity validation during development, then just not included in the production BOM.
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  2. O

    how to format large drive

    Okay, so you are not constrained to a single SCSI ID. 4 x 4GB images seems like it would be the most practical solution then.
  3. O

    Reworking the KeyLargo chip on QS/DA G4 logic boards

    Thank you for the advice. I will be much more patient when removing and reinstalling the working chip, maybe even enlisting the kitchen oven to give the whole board a thorough heat-soak/drying beforehand :) I don't want to make any popcorn!
  4. O

    I think @wottle may have a few extras.

    I think @wottle may have a few extras.
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  5. O

    how to format large drive

    Doesn't GBSCSI just run ZuluSCSI firmware?
  6. O

    Reworking the KeyLargo chip on QS/DA G4 logic boards

    Thanks. Yes, I just have the most basic 853A preheater: Of course, it is far too small for the whole logic board, but I did let it warm the board around the KeyLargo chip before removal. I was impatient though, so the board was only 55C (measured from the top with IR gun) before I decided it...
  7. O

    Reworking the KeyLargo chip on QS/DA G4 logic boards

    Well, absent any specific advice, I did some reading and watched some YouTube videos. I think I've settled on using balls and flux over solder paste. Step 1 of this process is making sure I am able to remove the bad part without damaging the board, so I did that: The pads are 0.635mm diameter...
  8. O

    Silicon Image SIL3112 Flashing: Easier Way Using flashrom

    What are the specs of your G4 @Coloruser ? There was a benchmark thread a while back, @GorfTheChosen saw about the same performance on a dual 450: https://68kmla.org/bb/index.php?threads/lets-see-your-best-disk-speeds-ppc-68k.49268/page-3#post-554678 In the first post of that thread...
  9. O

    Running 10.4.11 on pre-G3 macs with XPostFacto

    Neat! It's such a bummer that OS X can't take advantage of multiple 604s.
  10. O

    Reworking the KeyLargo chip on QS/DA G4 logic boards

    I thought I got a good deal on a Quicksilver logic board on eBay, but it was DOA. Upon further inspection, I spotted these gouges in the substrate of what I believe is the KeyLargo chip, the smaller BGA on the back side of the board, near the PCI slots. The damage is in the lower right corner...
  11. O

    PLL_EXT Resistor Location on '01 Quicksilver CPU card

    Ah, from 2007! Well, 18 years later, I have confirmed it 🙂
  12. O

    PLL_EXT Resistor Location on '01 Quicksilver CPU card

    It's too bad that OP will probably never see it without an email notification, but I figured this out yesterday. I found this thread while searching for info, so I'll post my results here. I have two Quicksilver CPU cards, an 820-1344-A (7455, 933MHz) and an 820-1282-A (7450, 733MHz). I, too...
  13. O

    Silicon Image SIL3112 Flashing: Easier Way Using flashrom

    Yep, the large partition was the problem. Boots OS 9 just great off a smaller device or <200GB partition on the 500GB drive.
  14. O

    Solder mask touch-up - OK to use clear nail polish?

    I've used that before. It's good, but it has some limitations; it's basically just green paint, so flux remover will take it right back off. Make sure you have all your cleaning done before applying it.
  15. O

    Looking for photos of accelerators

    I have nothing to add other than to say thank you for maintaining this great resource of information!
  16. O

    Macintosh SE M5011 - Restoration

    I would give Disk First Aid 7.2.2 a shot at repairing the image. I believe that version even works in Basilisk II.
  17. O

    Silicon Image SIL3112 Flashing: Easier Way Using flashrom

    No, I have never been able to boot OS 9 via the 1210SA, before or after the swap, so it's unrelated. I think the problem may be the size of the drive. I found this: here: https://web.archive.org/web/20080508023708/http://docs.info.apple.com:80/article.html?artnum=86178 Most of that article is...
  18. O

    Silicon Image SIL3112 Flashing: Easier Way Using flashrom

    AP7361C-33ER-13 installed, Quicksilver is now now sleeping (and most importantly, waking) like a champ with the flashed 1210SA! Weirdly, it won't boot OS 9, but it boots Tiger just fine; In fact, I'm typing this on it now :) Good luck with yours!
  19. O

    Macintosh 128k with mods by Julian Systems

    Typically a privacy cover, so the screen is only visible from directly in front of the computer.
  20. O

    Recent finds

    Nice score! I've had pretty good luck with this stuff for odor removal, although I admit I've never tried it on an old Mac: https://www.amazon.com/Mary-Ellen-Products-Atmosklear-30016/dp/B008OID5WA
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