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    Laser 128EX/2 startup issues

    Hi, I purchased a 128EX/2 awhile ago and recently checked it out. Taking a look at it, it doesn't fully work but I don't think it's that far off either. When it powers up, you get a beep, the ROM POST banner, and it accesses the drive. Then it usually fills the screen with a consistent...
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    Multia VX40 troubleshooting

    I was taking a look at an old Multia that's been sitting idle for a long time. It does not boot normally, but I'm able to do a fail-safe boot from the FSL image on floppy. When that boots, it spews a bunch of machine checks on the serial console. Before I write this system off, is anyone able...
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    classic Mac analog board 3.9uF capacitor source

    The compact Mac analog board versions I've encountered all have a 3.9uF non-polarized electrolytic cap, which is somewhat of a unicorn. You can source a 3.9uF film cap from DigiKey (in USA), but it's over US$3. However I found a cheaper alternative: All Electronics has a 4uF, 250V, 105-degree...
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    Anyone good at troubleshooting Multia/UDBs?

    The Multia was a mid-90's low-end Alpha desktop machine... maybe one of the first with PCI? Anyway, they were notorious on many fronts, not the least of which were thermal issues. I've got one working unit, but another 2 system boards that are not. At least one of them appeared to have been...
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    AMI BIOS on Am386SX-40 == no option ROMs?

    Hi, I borrowed a generic Am386sx-40 PC from a friend for some ISA NIC boot ROM testing. However, the machine doesn't seem to recognize any card's option ROM, even cards I'm certain work. I gave up on the NICs and even tried my trusty Adaptec 1522A to no avail. The CMOS setup has options to...
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