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  1. Performa450

    Power Macintosh PPC ROM DIMMs

    Here’s another one - AP2216-03 from the Power Mac 4400 prototype. It has 16x AM28F020s
  2. Performa450

    LC III FPU?

    Yep, genuine chip was sent well packed to me too, I’d definitely recommend
  3. Performa450

    Macintosh PowerPC 4400/200 Video Problems

    I have the onboard video only.
  4. Performa450

    4400 memory 5v

    Nice upgrade, I can confirm a 64MB Crucial / Micron MT32LD864AG-6 3.3V 60n/s 168-Pin EDO Memory Module works in mine. Now to find another…
  5. Performa450

    Macintosh PowerPC 4400/200 Video Problems

    I've just upgraded the RAM in my 4400/200 and spent a good half hour pulling my hair out. I got what I thought was a correct 64 MB DIMM, but found it wouldn't work in either dual bank slot without a DIMM in the other dual bank slot. I had: 16 MB DIMM in slot 1, 64 MB DIMM in slot 2 = black...
  6. Performa450

    Performa450's Machines

    Newton arrived today. It's a DVT MessagePad 120 containing two surprises, leaked NiCADs and OS 1.4b1.00
  7. Performa450

    Performa450's Machines

    Picked up an interesting looking Newton - not sure if that’s a 110 or 120. https://www.ebay.com/itm/116182273904
  8. Performa450

    Prototype PowerBook 550 advice

    I like the EVT serial # on that!
  9. Performa450

    Performa450's Machines

    Not quite as exotic this time - picked up a smashed up Powerbook G4 12" as I needed a charger, and genuine chargers appear expensive on the bay. It has turned up, but is in pretty decent shape apart from the smashed screen. There's a jammed memory bay door screw, but, other than that and the...
  10. Performa450

    2013 MacBookAir - MagSafe2 alternatives?

    Have you cleaned the contacts on the MacBook, adapter and MagSafe 2 cable? I frequently get MagSafe 2 machines only charging with the cable one way round and it’s usually a clean needed. Also try resetting the SMC and PRAM if you can get that far.
  11. Performa450

    Apple Interactive TV Box

    Amazing! Thanks for this.
  12. Performa450

    Help Identifying Macintosh Notebook

    One more point on this - the “Elsie” LC prototype with a pretty much final case predates this one (I’ve seen a couple online and there is one for ten grand on eBay at the moment), so I don’t think the case with the adjustable legs was the planned LC case, more that this was a design concept for...
  13. Performa450

    Help Identifying Macintosh Notebook

    Yep, agreed, with an alternate LC case. The internal mounts on that look correct to fit an LC board, PSU and floppy drives in, whilst not actually being put together or shaped like the LC’s case… and a date stamp predating the release of the LC. Perhaps a mock-up of an LC based all in one.
  14. Performa450

    Help Identifying Macintosh Notebook

    It predates the LC, which makes it being an internal apple prototype all the more convincing to me.
  15. Performa450

    Help Identifying Macintosh Notebook

    Also : the keyboard is an engineering sample and the lower case is roughly finished and appears to have an August 1990 date stamp and (TOOL#1). I reckon it’s an apple concept/prototype
  16. Performa450

    Help Identifying Macintosh Notebook

    Yes more pics please! It would be interesting to see pics from all angles. I’ve never seen anything quite like that before. Looking at the photo it appears that the upper/front case may be in two parts - the top ridge on the LC doesn’t go right the way round to the front of the case. It...
  17. Performa450

    What Apple Prototype Did I just Stumble Upon “Flamingo” ? 920-1873-03

    I think I saw something similar being sold as a production line testing board a while back. 920- boards seem to be that kind of thing - I have an iPod board and a couple or Apple Watch breakout boards. Not sure what this is though.
  18. Performa450

    G5 DVT unit - basket case or worth trying to get the board repaired...

    I've never seen another exactly like this - I have a working release version of it, which was $100 and I can definitely use for parts for it. As a prototype I'd guess it could be worth maybe $500 fully working? I'd expect it would be very hard to sell due to shipping, etc - it's not a super...
  19. Performa450

    G5 DVT unit - basket case or worth trying to get the board repaired...

    Picked up this a few years ago as "needing a new PSU", however on tearing it down the board looks like it has seen liquid and has impact damage - worth a repair? Anyone know someone in the UK who could look at this: https://68kmla.org/bb/index.php?threads/performa450s-machines.44085/post-483273
  20. Performa450

    Performa450's Machines

    Have now fully dismantled this - unfortunately found the following: * a cap next to the processor power supplies fell off (!) when the board unclipped. This does not bode well for the rest of it... * here's a shot of the (dead) DVT PSU * nice collection of screws and components in the bottom of...
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