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Everything posted by Danamania

  1. There's an option in the Memory control panel on some machines that allows you to disable the ram test on startup. Helps with Q950s that have a full complement of RAM. https://happymacs.wordpress.com/2015/01/30/speed-up-mac-os-boot-time-turn-off-ram-tests/ shows how to do it in 9, It may be the same in earlier ones. I used to turn it off on my 950 as 128MB was minutes-long for a cold boot test.
  2. I can't remember the details of space on a minimal system disk on floppy, but if you could strip the floppy down a little further and just fit the Memory control panel on, then you shouldn't need the Startup Disk control panel - when the RAM Disk is left as the only bootable device the Quadra should default to booting from it. Maybe a minimal disk tools floppy with the disk utilities removed and replaced with the Memory control panel to create the RAM disk, then copy that system folder to the ram disk for a minimal boot - and from there start building a full system by copying pieces across
  3. It's software, created by making a RAM Disk with the control panel as above - No separate hardware device I just did this here: 1. Created a RAM Disk through the Memory control panel (50MB was fine) 2. Copied across a system folder into the RAM disk (I left out things like Preferences, Application Support, and big control panels so it'd fit) 3. Made sure it was blessed (it was) 4. Selected it as the startup disk and 5. Rebooted The Quadra rebooted into the RAM disk. The RAM disk wasn't cleared on reboot. It doesn't work from power off/power on of course, but rebo
  4. Your 'if' there isn't a correct assumption - RAM Disks are bootable. You boot off a RAM disk by putting a blessed system folder on it and selecting it in the Startup Disk control panel.
  5. I took a closer peek at that bit, looked like it said 7QD-B instead of 700 - it was a google search for 7QD Quadra that lead me to https://mail-index.netbsd.org/port-mac68k/2005/09/26/0001.htmlwhich gave me the name of the thing!
  6. A little more hunting reveals it's a Newer Technologies Quadra Overdrive (hence the QOD). https://picasaweb.google.com/kreats/NewerTechMacUpgradeshas a few different kinds. Yours is a DT166C which lines up with that page's pictures 10 and 11, for a Quadra 900.
  7. The FCCID reveals it's a Newer device indeed: https://fccid.io/JTGQOD
  8. 365tomorrows.com works well for the most part, too (been reading this on my 605 w/7.5.3)
  9. A few here: http://ganzolo.free.fr/nmillassweb/img/performa400.jpg http://www.recycledgoods.com/media/extendware/ewimageopt/media/inline/f9/3/apple-m1700-macintosh-performa-430-cd3.jpg http://www.classicmac.net/gallery/server_photos/450_front.jpg
  10. Depends on the Performa. I can't remember offhand seeing a Performa 475 in-line, but for the earlier Performas the in-line arrangement is the only one I've seen.
  11. Green logic boards turn brown when exposed to UV too. I left my 6500 board out in the sun after giving it a full-on soak to dry. It went out green, came back brown where the light hit it (everywhere except the shade under a sticker)
  12. Those are exactly the numbers on my 660AV ROMs. https://dl.dropboxusercontent.com/u/5334905/660av_ROM.jpg
  13. That's normal going by my experience. Around 128MB in my old Q950 took 60-90 seconds on a cold boot for the RAM check. Subsequent warm-boots bypassed the check though, and booted far more quickly.
  14. 40vol stuff is awesome. I've tested a couple of kinds out in the sun vs indoors - it does nothing indoors, but does too-fast work outside in sun UV. I'll add the same disclaimer for any drive-by readers that I make about Australian sun and retrobrite here too - 40vol, here, in country australian sun, will nuke a mac's case to white blooming in minutes. It needs to be REALLY diluted to give a good result, so here the submerge method is the only useful one. Test first! I find yellowing can come back subtly over many years, but only in the same places it was originally yellowed; My guess is i
  15. I had the same symptoms with my CC - and it was a dry joint on the analog board. The underside of the board where the shielded video amps sit had a dry joint. If you look on http://s14.postimg.org/6khbmega9/CC_Analog_Checklist.jpg there are two parts to the shielded section near the bottom of the photo. The device at the top of the smaller (lower) fenced area had the dry joint on the other side of the board.
  16. I have no words... these things put my Genesis' RAM cards to shame for sheer huge quirkiness ( see https://www.flickr.com/photos/71473458@N00/ )
  17. Ta! The flickering green was a cracked pad-trace point on the video amplifier. I tested continuity over traces that should be connected, and while the traces were fine the solder blobs didn't contact. I added a wire to manually connect the pins and all was well. https://dl.dropboxusercontent.com/s/rzgqfat0z3kk2bi/Q1rpu0h.jpg?dl=0has the amplifier IC labeled in red near the bottom. It was one of the joints underneath it. Nothing remotely *looked* dry or cracked of course!
  18. He said he got it from the northern beaches in Sydney
  19. I've repackaged the .sea here as a .sit - may bring you more luck. https://dl.dropboxusercontent.com/u/5334905/DaynaPORT%20Installer.sit
  20. This was an interesting one. When it arrived years back, it had a slight issue with a flickering image that'd drop the green out from time to time. I stored it after moving house, and earlier this year brought it out to play with. Dead as a doornail. Boo. After a few days of gentle watching, and a whole motherboard wash, re-wire of a missing analog board edge connector pin (looks like it once had a VGA mod done to it), re-solder of at least three dry joints and a new HD, it's up and running just as well as a Colour Classic The First can run. Not terribly quickly . But that's O
  21. Before it's sold: http://www.danaquarium.com/tmp/genecpu.jpg Wicked. Thanks to defor for giving me the kick to fix it Dana
  22. Sometimes it can be the tiniest visible break in a component that releases a massive flash of light, sparks, a stench that fills the room and enough noise to skip a few heartbeats. This was one of those - http://en.wikipedia.org/wiki/File:No_blue_smoke.jpg I had similar happen inside a Quadra 840AV PSU - it was a voltage regulator IC, from memory. Also rather small damage for the noise, light & sound it made Dana
  23. Ahhhhhh! My HD cable arrived from Amigakit in cardiff, plugged in and the HD just did a vrrrp vrrrp vrrrrp.... pause... vrrp vrrp vrrp... pause as it tried to start-up. I took it out, held it in my hand and spun it along its rotation plane and smacked it into my other hand a few times, then reconnected it, and it booted fine! OK, fine apart from a whole lot of stuff that doesn't have the RAM to run or doesn't work on a 68000 (the drive came from a 68030 A1200), it looks like all my filesystems are available, even the ones formatted in whatever non-Amiga-FFS I used at the time. Hurrah!
  24. A coffee spill that nuked the serial port, then the rest of the machine not long after.
  25. It works, I have my old HD uncovered too, aaaaand.... the 44pin IDE cable I need for it is somewhere in my Collection of Stuff. Stuff which contains a good 200lbs of cables alone. This might be a long long night...
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