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      Discuss your latest vintage Mac finds!

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  • Posts

    • I’m testing a Quadra 950 in the hope of adding it to my collection. But it makes a subtle squeaking noise (not from the speaker), and the internal video becomes distorted when it reads from the hard drive. If I push down the mouse button, for instance, to make a selection in the main menu in finder, it is almost like I can control the squeaking noise. If I use a Nubus graphics card, the video is fine, but the noise persists. On close inspection, the board looks very nice and clean. Has anyone here had a similar problem?
    • have a look here: http://www.vcfed.org/forum/showthread.php?67996-Levco-SUperMac-Prodigy-SE-accelerator-board-and-utility-software as well as https://www.macintoshrepository.org/23153-prodigy-se-utility-and-driver-software-disk http://www.classiccmp.org/transputer/documentation/levco/p864-levco.pdf
    • Leads on this are pretty cold... it's a SuperMac SpeedCard   Thanks to this eBay seller we know what the driver diskette looks like, and handily the front cover of the manual shows a screenshot of the System 6 control panel, indicating that the cdev is likely just called 'SpeedCard.' Perhaps they or a future buyer could be persuaded to image the diskette. https://www.ebay.com/itm/0006279-0001-SUPERMAC-SpeedCard-for-Macintosh-SE-16MHz-68000-Accelerator-Card-/142361808825   Other than that, there was mention of one in a collection here in 2007 and another on arstechnica in 2002. It's a long shot, but if you want to track them down it might still pay off... https://arstechnica.com/civis/viewtopic.php?p=14878659&sid=2c044bb333fded51c4f0c2bcf45f78a2#p14878659   Edit: One more from 2007, post #14: https://www.bikeforums.net/foo/352410-your-computer.html
    • Yah, it's odd - i've literally buzzed everywhere - I0 is just N/C, completely. Not sure why FCLK is so mental, either. 
    • Anyone able to assist at all?
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