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    Mac 512k memory expansion question

    Apparently, if you hold down the mouse button while booting, it will bypass the ram expansion and just show you what’s on the logic board directly. I’ll try that and see what happens.
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    Mac 512k memory expansion question

    The photo I sent with all the chips, you can see the JP1, my cleanup job wasn’t perfect, but it says 2048 now so I’m happy about it. When I was inserting the ram chips, I got a sad mac code. After removing the board I noticed that some of the chips legs were outside their sockets!! I fixed...
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    Mac 512k memory expansion question

    Yes, that photo showed what it looked like before I removed it. I think you’re right about the 512k on the logic board. Hard to find an original 128 I guess as most users seemed to upgrade theirs.
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    Mac 512k memory expansion question

    When I first installed it, it said 1024, which I think is the motherboard ram as well as the first row of chips. After I removed the solder bridge, it doubled to 2048, which was super cool. I wonder if that means the 128 had been upgraded to 512? It’s hard to tell because you’d have to remove...
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    Mac 512k memory expansion question

    Here’s some photos. That JP1 needs to be clean (remove the solder bridge and then it sees all chips, not just the first bank.
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    Mac 512k memory expansion question

    Circling back to this: we recently picked up a bunch of Mac stuff including a 128k with the Macs-A-Million ram expansion. I bought 50 41256 - 10 chips and fully populated the card. Booted up MacDraw to see how much RAM showed up. It only registered 1024 KB. Then I found this thread and...
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    Macintosh 128K Week 9

    Nice find! We recently picked up some older compacts and also noticed that some analog boards had that aluminum shield. Interesting. My 128k has a Macs-A-Million ram expansion, but it’s only partially populated. I have replacement chips for it though to fully populate it.
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    Massive Haul Video UP!!

    Hey everyone! Keith and I picked up a huge collection of Apple stuff from a collector here in Calgary. Check it out on our Computer Compulsive YouTube channel HERE:
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    Digidesign NuBus expansion box

    I used to run Digi chassis on PowerMac 7100/80. Had the newertech G3/300 card installed in it as well. I have many PT installer CDs, but I don’t know if I have any authorization floppies. I do have some Sound Designer II floppies somewhere.
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    Interware Booster CV 40 - Doesn't work on SE/30

    Would it work with a dual PDS riser?
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    Interware Booster CV 40 - Doesn't work on SE/30

    Just circling back to this, will the Turbo 601 card work with Bolle’s riser card in a IIsi?
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    Recent pickups and new YouTube video

    Hey everyone! Keith and I at Computer Collective just released a new video on our YouTube channel. We take a look at some of the hardware and software we just picked up. Check it out here:
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    Mac Color Classic analog board crackles/whines/sizzles/hisses w/ video

    I had this EXACT SAME SOUND on my Color Classic analog board. Just a caveat, we had done the 640X480 VGA mod to optimize using a 575 Mystic upgrade. It was coming from the yellow transformer area. When the machine was making that noise, the screen would have lines on it and be kind of wavy...
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    Mystic Color Classic Descent Into Madness

    I was just going to say, are you able to run the Apple IIe card AND the Ethernet card in the same machine? I had read that if you had the Apple IIe card installed, the Ethernet card wouldn't be recognized. Or is it recognized if you boot to a different OS perhaps? Please let us know!
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    Benchmark results with Daystar Turbo 601 PPC upgrade for 68030 Macs (IIvx and Performa 600 tested)

    I know this thread is a few years old, we just found one of these cards, but it's missing the heat sink. Would anyone have extra heat sinks we could use? We don't want to test the card unless the heat sink is on.
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    Macintosh Portable, feeding 7,5V, 1A instead of 1,5A - will it work

    Just wanted to revisit this thread, I realized that the power supply I was using was only 1.0 Amp, and after I switched from the lead acid battery to Android's Battery Replacement card, my backlight started flickering anytime there was BlueSCSI read/write activity. I'm wondering if I was just...
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    Interware Booster CV40-40 68040 40Mhz Macintosh CPU Accelerator

    Thanks! How much faster is the SE/30 with that cache card I wonder?
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    Interware Booster CV40-40 68040 40Mhz Macintosh CPU Accelerator

    Just bringing this thread back, does anyone know if the cache card from the Carrera 040 card and the Booster are the same? The reason I ask is that I found a Booster with cache in a Color Classic 2, and I recently got a Carrera 040, but there was no cache.
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    PCI PC Compatibility card: will it work with a G3 desktop mac?

    I just picked up one of these with the cable. How hard is it to find all the software for it? I have an LC 6360, Powermac 7500 and desktop Beige G3, will the 12” 100 Mhz card work in all of those? Do I need a PCI riser for the LC or will it not fit anyway?
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    Cooling a 601 Processor Upgrade card

    Following: Also recently found the 601 60Mhz PPC card for my Mystic and was experiencing lockups after 30 minutes of usage. Will redo the thermal paste and report back. Also, I will be uploading a video of us using the Mystic board AND showing that the Apple IIe card CAN WORK, as long as you...
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