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| Color Classic Mystic Question |
Posted by: psa425 on 2024-06-30 19:45:24
Can I use a Performa 578 logic board for the mystic upgrade? Every article refers to LC575 but the technical specs look the same to me. Is there a difference or functional limitation to using a 578 board?
Thx. |
Posted by: pizzigri on 2024-06-30 22:16:51
I sort of recall the 578 is just another name of the 575 series with more ram factory installed so yes.
the 580 OTOH is basically a 630 based LB…. So no joy. |
Posted by: HardwareHacker on 2025-05-13 21:24:52
I just got a Color Classic Mystic from ebay. When I power it on the monitor takes forever to turn on. Might that be caused by a missing system clock battery? This behavior only happens when the machine is off and then powered on. If I reboot I encounter no issues.
I'm suspecting that something gets loaded somewhere and stored in a place normally kept alive by the battery once the monitor is properly recognized, but since they're is currently no battery installed those values get lost when a shut down occurs.
Thoughts? |
Posted by: robin-fo on 2025-05-13 23:56:40
Nope, sounds more like a hardware issue. Are all circuit boards recapped and solder joints on the analog board checked for cracks? |
Posted by: cheesestraws on 2025-05-14 00:27:18
It's not the battery, almost certainly.
Do you have a ludicrous amount of RAM in it that could be slowing down the RAM test? |
Posted by: HardwareHacker on 2025-05-14 05:07:20
132mb |
Posted by: cheesestraws on 2025-05-14 05:10:23
Then that is probably your problem. |
Posted by: HardwareHacker on 2025-05-14 08:58:51
As long as it's just a long pause checking ludicrous amounts of ram, I should be able to live with that |
Posted by: adespoton on 2025-05-14 09:56:27
You could always replace the ROM with one that skips the RAM check.... |
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