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Recent content by Performa450

  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
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