trag's latest activity
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Ttrag replied to the thread Apple Network Server MacOS based ROMs found.Those conversions really shouldn't work, unless the 7100 ROM DIMM is supplying 5V on pin 33 for each of the chips. Perhaps it is. Now...
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Ttrag replied to the thread Apple Network Server MacOS based ROMs found.Never mind. Almost made it to bed and then remembered that there's a thread somewhere where someone replaced the chips on a 7100 module...
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Ttrag replied to the thread Apple Network Server MacOS based ROMs found.Found in my notes from about 20 years ago when I was pinning out various ROM modules by hand, that Pin 28 of the ANS ROM is tied to GND...
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Ttrag replied to the thread Apple Network Server MacOS based ROMs found.Let's let ClassicHasClass do his testing first, to determine whether I made any fundamental errors. I would hate to start assembling...
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Ttrag replied to the thread Odd 7200 problems. Again.Typically, the heat sink grease has turned to chalk with age and needs to be cleaned off and replaced. Machine is overheating causing...
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Ttrag replied to the thread Shopping for Power Macintosh 7300 ram.I'm not sure that page is correct. Years ago I crawled through the Apple Developer Notes for those machines in detail. I'm not going...
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Ttrag replied to the thread Q660AV max memory ?.Apple's talk about megabits per chip is detailed talk about the exact way the machine addresses memory. Without understanding all...
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Ttrag replied to the thread Apple Network Server MacOS based ROMs found.Four ANS Macintosh ROMs ready to test. Will get them to ClassicHasClass soon.
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Ttrag replied to the thread Apple Network Server MacOS based ROMs found.Thank you. That's what I needed to know. The need for swapping order/label is not an error, so much as an artifact of historical...
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Ttrag replied to the thread Apple Network Server MacOS based ROMs found.Checking: You left the extracts in the order that kansas_deinterleave produced? In other words, U1 = U1, U2 =U2, U3=U3 and U4 = U4...
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Ttrag replied to the thread Apple Network Server MacOS based ROMs found.Enabling the use of WE was almost an after thought in the lay out. The _WE pins are all hard wired high. I think I left clear traces...
