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About Floofies

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    Maker of Logos
  • Birthday 06/01/1993

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    Georgia, USA

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  1. Spectacular work on this conversion! That's a real top-notch job you did, stuffing it into the original case. Also, soldering right onto a DIP socket is so cheesy but I like it anyways, and I wish I'd thought of it! I'm really happy that my earlier work is useful for other Quadra 630-series owners!!! I am actually surprised it booted on the first try, too; I had to build 3 different prototypes of that "boot signal converter" before I could get it to be stable, so I wasn't sure if the resistors in my diagram were going to work for everyone.
  2. There is a short-circuit somewhere; either from a stuck button (like jt suggests above), or from damage to the power architecture itself. I'm going to go ahead and rule out a PSU voltage decrease, which the first reported issue indicates, because the second issue seems to show the opposite of what you would expect with a drop in voltage. Typically a drop in voltage on the +5VDC TRKL line will reduce amperage, and cause the boot capacitor to stop charging or to charge slowly, which is why an immediate self-boot seems to eliminate that as a possible root cause. If you have a multimet
  3. Wow, a tower, and it's looking sharp! It's always nice to see people doing hacky things with the 630 series! Having never finished my own custom 630 case, your work inspires me somewhat.
  4. About the caps/psu: Every Mac with electrolytic capacitors will eventually get leaks, and even if there aren't leaks the voltage will slowly drift out of spec. I can safely assume, and often do, that even during normal operation the PSU voltage is drifting out of spec. As for the OS, I just find 7.6.1 to be a bit snappier than 8.1 on that model.
  5. I finally got around to setting up the Quadra 800, and the PSU has released magic smoke after a few boots! I’ll look into cramming an ATX PSU into this thing. Pulled the PSU apart and noticed some darkened pins... and on the other side is a current mode controller with a hole blown through it...
  6. The PSU is most likely not operating normally. The PSU and logic board tend to have leaking capacitors which can cause some damage. 8.1 should work on a Quadra 630 just fine, although 7.6.1 is the best system for that machine in my opinion. You should be able to run Drive Setup from your install CD to see if the HDD even shows up.
  7. It seems like a design flaw, so I will be adding some insulating tape around that clip before reconnecting everyhing. As an aside, I’ve always wanted an oscilloscope so I can troubleshoot more effectively, so I’m ordering a Looking at getting a Rigol DS1054Z. It’s supposedly a good entry-level scope but has some really soft/mushy detents on the knobs.
  8. If you can't get the machine to boot, then the only ways to power it off externally is to either use the reset button on the back (next to the monitor video output port), or unplug the PSU. The hard drive could be unformatted, disconnected, dead, or missing. Thankfully, the Quadra 630 uses standard PATA instead of the usual SCSI Macs of that era, so replacing the drive is straightforward. You can access the HDD bay on the front of the machine, after removing the front bezel by disengaging the clips on the bottom. I am warning you, you can very easily break some plastic, so be extre
  9. I now have the 950 booting happily, and I think I have found the cause... I am so pissed at myself. You may have seen that photo of a little clip on a blue oscillator I was looking at. Well I left that in there during testing! Oh good lord! When I went to test the PSU recently, I removed the unit once more and saw my mistake. After removing the clip, I got the bong, and it booted happily! I looked closely at that clip, and it was quite bent. I think it may have been intermittently shorting that pin to the oscillator housing! I slapped myself for a good minute and tried to think of
  10. There's no onboard RAM in the Q950, so I don't know if it would chime or boot the ROM without SIMMs. I'd like to find out though. I too suspected bad RAM, however I know for sure that the RAM test was passing fine, and I never got any related SadMacs. If I can get it booting again, I'll run a RAM test from a floppy, just to cover all my bases. Since I don't have any free time during my work week, PSU is going to be tested next week. I already did some research on where the /PFW line is and such, so I think I'm prepared enough.
  11. I will be checking the PSU! I removed everything, including the motherboard, for inspection; everything looks fine. The scene in here is depressing. I miss my cat.
  12. This has not been a good month for me. First my poor cat Linus is hit and killed by a car last week, and now the Q950 I picked up from our dear Nuvision has died! This Quadra 950, a workhorse at Nuvision Graphics for who knows how many years, is now giving no signs of life, and I don't know why. It all started when I first received the machine from Nuvision a few months ago. The front of the machine had a label on it which read "BOOTS (NEEDS WORK)", so I knew things would be interesting. When I first set it up, it was not booting due to the format of the HDD, also indicated by that
  13. All work on this project has been put on hold since I moved to a new house in December. My lab is currently only a cluttered mess of boxes, waiting to be re-assembled into an even more badass lab! When the lab is back up and running, I will have the available space/equipment needed to continue working. All I need right now is a few tables, shelving, and a teleportation device so I don't break my back carrying tons of boxes down the stairs and into the basement... Expect pictures of all that when the time comes. Here's what's on the to-do list right now: Re-cap the Q630 LB
  14. Hi all, just writing to let you know I am still working on this. If anyone has any additional conversions they would like to share, I am still interested!
  15. I usually just rip into external HDD/CD enclosures (like a LaCie Joule) when I need to externalize a drive or SCSI2SD. The added benefit of using those is the ability to chain additional SCSI devices, an enclosure-provided SCSI ID, and enclosure-provided term power.
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