• Hello MLAers! We've re-enabled auto-approval for accounts. If you are still waiting on account approval, please check this thread for more information.

Search results

  1. tt

    Quadra 950 Not Booting

    I haven't given up, but for a couple reasons I thought I should look for another board. I have some events I need to prepare for the next couple weekends, so I had to tuck away the behemoth to keep it safe.
  2. tt

    Quadra 950 Not Booting

    That's a great idea, I haven't tried plugging into the 3.5 mm jack. I had to put the machine aside to work on another project, so I'll get to it in a bit.
  3. tt

    Quadra 950 Not Booting

    I have a 2 chan PicoScope that goes up to 50 MHz, might not be capable enough. Thanks for the detailed instructions on the signals to check on. Could I also check the crystal's pins for a more direct measurement? I mostly use compact Macs, so when I initially fired this machine up, I had it...
  4. tt

    Quadra 950 Not Booting

    Thanks for the guidance. I tried this with a 2MB ROM with soldered on flash chips (maybe one of your earlier builds) but unfortunately, no dice. The red pirate skull LED powers on at least.
  5. tt

    Quadra 950 Not Booting

    I swapped in and out the memory groups and ended up "testing" the original RAM in my SE/30 with memtest bypassed using an OG @dougg3 8MB ROM SIMM. I also tried booting with no RAM installed, but there was no sound emitted in any case. I put back the 8 x 1 MB SIMMs that were initially in the...
  6. tt

    Yet another SE/30 ROM SIMM and Programmer

    I ended up replacing a ROM socket on a board with one with metal tabs since it was randomly freezing up. Most people are probably not going to want to do that. Given all the potential issues with old equipment, having one less potential issue is probably worth a premium. JDW talks about this...
  7. tt

    Yet another SE/30 ROM SIMM and Programmer

    I thought I responded to this post but it is gone. It seems like there are a few different sellers in the market, so interest is likely going to come down to price. Same with the programmer. I don't have a sense for how many people have one, but I am guessing more people should have one to...
  8. tt

    Quadra 950 Not Booting

    Thanks @David Cook, @joshc, and @Phipli. I will take a closer look at the RAM. I was assuming that since the machine booted with the old RAM before that it should still be good. I will pull out the old RAM out of Bank A and put in the other set of 4 SIMMs in Bank A. If it still doesn't work...
  9. tt

    Quadra 950 Not Booting

    I put a new set of 4 16MB SIMMs in since I happened to have those handy. There were 2 sets of 4 sticks in there before when the machine was working. I took a photo to put them back in the same way, but the angle I took them at they all look the same. So I put just one set of 4 matching sticks...
  10. tt

    Quadra 950 Not Booting

    I am not as familiar with this machine, so it is a good question. To turn it on, I turn the key to the 12 o clock position and then press the power button on the keyboard. The machine turns on, PSU fan runs, the green light from the logic board is on, and the hard drives spin up. No boot chime...
  11. tt

    Quadra 950 Not Booting

    Yeah, there is a slight gap between the end of the case button mechanisms and the button faces on the logic board. There is some travel, ~ 0.5 mm before it contacts the switch. One thing I thought was odd was that it was really tough to slide the logic board toward the back of the case to get...
  12. tt

    Quadra 950 Not Booting

    @David Cook thanks for checking. Those readings are similar to mine so I guess the buttons are not the issue. Does the Q950 need a PRAM battery installed to function properly? There isn't one installed, but the power supply seems to function ok without the battery installed. Maybe the -12V...
  13. tt

    Quadra 950 Not Booting

    The machine's power supply turns on, powers the drives, but no boot chime sounds and I think there is no video. This Quadra 950 has worked in the past, but it had a logic board that was not fully seated in its plastic frame when I received it and I guess it shifted again when I moved the...
  14. tt

    Porting LinuxDoom to System 7 (or trying to) - progress and questions

    Thanks for explaining. It sounds like there's a ton of information to sift through on the CD image. Is the correct version of CW 6 or CW Pro 6? Doe it needs to be compiled on a PPC machine for a 68k target? I just recently started messing with CW and all the versions and how to tell which...
  15. tt

    Porting LinuxDoom to System 7 (or trying to) - progress and questions

    This is really awesome to see. I tried Doom on an accelerated SE/30, so it would be cool to try it again with further optimizations. Do you have any tips on how to set up the dev environment? For the files attached, are the files placed into a Doom folder with the level files (sorry, going by...
  16. tt

    ZuluSCSI Compact Homebrew - A Smaller, Faster, and More Capable RP2040-based SCSI emulator

    Sorry, I made two arbitrary taps on my trackpad and accidentally made a post and couldn't find a delete button, so I am hoping a mod could delete it for me. The forum can lose posts with useful user contributions without a proper backup but we can't get a delete button :p But now I have a...
  17. tt

    Buildable Micron Xceed Color 30HR ROM Source

    Ah bummer. I guess getting a programmer is something to look into since it seems more projects being posted here are using them. Is it fairly straightforward to program them for someone not being familiar with that type of programmer? I wonder if there's some arduino type project that might work...
  18. tt

    Buildable Micron Xceed Color 30HR ROM Source

    @zigzagjoe Where do you recommend buying the Winbond EEPROMs? Do you think @dougg3 's programmer would be compatible?
  19. tt

    Buildable Micron Xceed Color 30HR ROM Source

    Yeah, actually I saw your other thread and saw that you mentioned it there. I didn't know that resolution hack was eliminated which is a great find. I just went to check if I had a later ROM version to help with your search, but only have one that says 2.0 on it. I am guessing that if there is...
  20. tt

    Buildable Micron Xceed Color 30HR ROM Source

    Wow! Since this is top of mind, I am wondering, would it be possible to change the driver to make the Xceed board report the typical internal video resolution of 512x342 when it is in greyscale mode? As originally designed, the driver reports 512x341 which can cause issues with programs like...
Back
Top