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    Nextstation Color Turbo display characteristics

    I've found a post that outlines the default video mode in great detail. What I'm curious about is if the machine pays attention to sense signals from the monitor such that alternate resolutions are possible. The 13W3 connector carries signals for this purpose.
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    LC475 with no sound output

    I think I need a bit of help in troubleshooting my LC475. I'm scratching my head a bit over the schematic on page 13. A scope on pins 18 (or 19) of the DFAC chip shows that PWM is being generated when I trigger a notification. It reads a steady square wave under quiet conditions that then...
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    Boot LC475 without battery?

    Should I be able to boot an LC475 with no CMOS battery installed in the system? I've just acquired one that refuses to start without a battery and do not believe that's the expected behavior. If I'm correct in that assumption, any idea where to start troubleshooting? (Apologies - I had...
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    Update SCSI driver grayed out - why?

    I'm using a ZuluSCSI Pico slim on one of my SE/30s. The Zulu firmware complains about one of the images having a LIDO SCSI driver and warns of potential problems. But, regardless of how I try to come at it I'm unable to 'UPDATE' (replace the SCSI driver) on that volume. I know that one cannot...
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    SE/30 with jail bars

    In an earlier thread I mentioned having replaced the 68030 on my SE/30 with a socket and installing an accelerator. Afterwards I ran it for a week on the bench with no problems. Closed up the case, ran it for another day or two. No problem. Today, this: The machine is 100% operational aside...
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    Can anyone help evaluate these CPU upgrades?

    Over years of swap meets and hamfests I've accumulated a pile of slotted processor upgrades for G3 era Macs. Unfortunately I do not have any system that uses this form factor and I don't know what their operational status might be. Is there anyone on this forum that lives in the US and might...
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    Remove and socket SE/30 CPU?

    I have acquired a Dove Marathon 030X/SE accelerator board. Apparently it's compatible with the SE/30, but expects to plug into the CPU socket. The SE/30 CPU is unfortunately soldered in place. What do folks think about my chances of removing the original CPU without damage to the board? I do...
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