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About johnklos

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  1. johnklos

    Imagewriter II ribbon cartridge sources?

    I bought some black ribbons on Amazon many years ago, but it was too long ago to find in my history. Just read the reviews and look for ones written by people who can write in complete sentences and convey information unambiguously. I didn't know that about color ribbons, but it's good to know. I bought a few color ribbons a few years back based on a thread here about someone sourcing new components, and although I haven't gotten to use them much, it's good that they're new
  2. johnklos

    Imagewriter II ribbon cartridge sources?

    What have you heard? I've used ancient ribbons without any issues.
  3. Ah. I see. That sounds like it's not happy. Good luck!
  4. I highly recommend you don't open it up. It spins up, you've already said, and a noise shortly after spinning up is quite normal for older drives like these. Opening it up may permanently ruin it because you'll be introducing dust. Just curious - what does "HHD" stand for? As you've said, SCSI Probe sees the drive, but you can't mount it. Ok. So now download a patched copy of Apple HD SC or Apple Drive Setup, then use that to partition the drive.
  5. johnklos

    m68882 made in 2012?

    I think the problem is more prevalent with larger ceramic chips where people want one type and there's a glut of another. I have two FPU-less LC040s that were reprinted as MC68040s and I have an MC68060 that's really an EC (no FPU, no MMU). Luckily, there are no FPU-less MC68881 or MC68882
  6. johnklos

    m68882 made in 2012?

    I recently recapped my LC III motherboard and it works wonderfully. I had an extra m68881, but it's only rated at 16 MHz and the LC III is running at 33 MHz, so I decided to buy a faster rated m68882 from eBay for $6. I've gotten lots of fake m68040 and m68060 chips from eBay, so I was a little suspicious, but I installed it, and it's a real m68882! Now the strange part: According to the markings on the package, it was made by Motorola, not Freescale, and it was made in 2012! I wonder why Motorola is still making these. Also, even while running FPU intensive tests, it runs cool, so I'm guessing this is a newer mask made on a smaller process than old m68882 chips made in the 1980s.
  7. I've set up many SSDs, although all were either Toshiba or Samsung, on various models of G4 and G5, without any problems. This is the first I've heard of any problems with booting. Not seeing drives, sure, but I've only ever seen all or nothing - either the drive isn't seen at all, or it's seen and works fine. It'd be interesting to see what your device tree looks like from Open Firmware.
  8. If a Power Mac G5 can see a drive, then it can boot off of it. There are issues with certain drives that don't properly fall back to 1.5 Gbps, but if you can use CCC to clone, then your drives are working. If your SSDs are larger than the 160 gig drive, then boot off of another drive or DVD, then use `dd` to copy the 160 gig drive exactly as-is. Or just do a clean install on the SSD.
  9. Many older NuBus / LC ethernet cards work fine with 100 Mbps and gigabit switches with auto negotiation. However, certain cards seem to not want to work. Some have a jumper which causes the link to stay on regardless of the physical connection. Does anyone know how to make these cards work with standard 100 Mbps / gigabit switches? For instance, I have a couple of Asante "MacCon LC-A" version 1.1 cards. I prefer to use them because they have a socket for the m68881 or m68882 FPU. However, I can't get a link on anything. Without the jumper, it gives a blinking link LED, and with it, it gives me a solid link LED, but nothing on the other end either way. In the past I used to keep around 10 Mbps hubs just for connecting older machines with cards like these. Is this still the most straightforward way?
  10. johnklos

    Apple Imagewriter II Restoration

    I would love to get an ImageWriter LQ... I have a beat up ImageWriter II that I found in a Dumpster many years ago. The knob is broken, the plastic is cracked, it's rusty as heck, but it still prints beautifully. I wrote drivers to print color graphics and screen shots to an ImageWriter II from my Sinclair QL (m68008 processor). It's pretty straightforward. I even found some of my program listings from the '80s recently. I'll have to post them somewhere some time soon. You probably don't want to do software flow control - it's a pain. Hardware handshaking works just fine on the ImageWriter II, once you make the cable.
  11. All SCSI2SD support async modes. I think you're thinking of synchronous modes - the v6 can do sync mode at up to 10 MB/sec. It seems that the Q840av can do sync mode, but only up to 5 MB/sec. SiliconExpress IV seem to only support 10 MB/sec or 20 MB/sec when doing wide synchronous transfers. Does anyone know if it supports DMA? So it seems to be the case that a SiliconExpress IV will be faster. SD cards really aren't all that fast, anyway, although a good card will, of course, be faster than an old 1990s SCSI drive
  12. johnklos

    Carrera040 Info / Hacking Thread

    Congrats! That's awesome
  13. It's really not that hard to dd if=/dev/rdisk1 bs=256k | gzip -9 > card.dd.gz then send the file over the Internet
  14. johnklos

    Solid State Drive for G3?

    To be clear, drives larger than 128 gigs are not supported on IDE. SCSI has no such limit. But you can get around that in OS X with the Intech SpeedTools Hi-Cap driver. The first 128 gigs will be seen while booting, and after the kernel loads the Hi-Cap kext, the rest of the drive will be seen. I have a first gen iMac motherboard with a 2 TB drive with one 8 gig partition, then a 120 gig partition (where gigs are 2^30 bytes), so the system boots the 10.4 kernel from the 8 gig partition, then uses the 120 gig partition as the boot drive, care of OWC's XPostFacto. Then, as the system is booting, the rest of the 2 TB drive is seen, and /Users is mounted there. I believe the beige G3 has the same limitations.
  15. johnklos

    PowerPC overclocking and limitations

    BTW - imgur sucks. First, as we can all see, embedding images from there doesn't work, and second, they want to take hundreds of megabytes and billions of instructions per second to run their Javascript just to load their silly pages.