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rsolberg

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  1. rsolberg

    5x0(c) CPU card differences

    Whoops I'm wrong! The 5xx series CPU daughtercards use a 4x frequency multiplier IC between the oscillator and CPU. This means that a 12.5MHz oscillator's clock is multiplied x4 to 50MHz for the CPU's external clock input, running the CPU at 25MHz. I would still aim for 33MHz for stability's sake, so that would require a 16.7MHz oscillator.
  2. rsolberg

    5x0(c) CPU card differences

    If you can find a genuine MC68040FE40A, then that might be a good option. The 68040 series operates at half the frequency of its input clock. That means a 20MHz oscillator would run the CPU and bus at only 10MHz. In the case of the 520c, a 50MHz oscillator is used to set the 68LC040 and its bus at 25MHz. If you were to replace the original CPU with a 33 or 40MHz-rated version, the new CPU would still operate at 25MHz. Replacing the oscillator with a 66MHz unit would yield 33MHz CPU and bus. 80MHz oscillator would give you 40MHz. Keep in mind the CPU and bus are at 1:1 and some logic board components may not work reliably or at all at the higher speeds. RAM and VRAM are just some of the usual suspects. It seems pretty likely to me that the 520c would work at 33MHz with a 66MHz oscillator, but I'm doubtful that 40MHz is achievable without issues. Remember that heat dissipation climbs significantly with a small frequency increase. Also note that the "full" 68040 with FPU dissipates significantly more heat than an equivalent 68LC040 at the same clock. If you can find a genuine MC68040FE40A for a reasonable price, it's likely to run cooler with a 66MHz oscillator (at 33MHz) than a MC68040FE33A would.
  3. I'm not aware of an IOXperts Airport Extreme driver for OS 9. I am familiar with their driver that allows use of "unsupported" 3rd-party PC Card WiFi cards in Mac OS 9 and X though. I was going to refer you to their website as I bought said driver from them a few years ago, but I see their site no longer exists.
  4. rsolberg

    PB145B’s finds

    Looks like the kits are discounted to $24.99 US now, LCD not included. See realmacmods.com
  5. rsolberg

    PB145B’s finds

    In case you're not already aware, you can get an adapter board from realmacmods that allows use of a non-Apple replacement panel in your 17" iMac, including a higher resolution 1680x1050 or 1920x1200 panel. I bought a kit that included plastic mounting rails/adapters from them. I sourced a used a 17" 1920x1200 matte panel from an Alienware laptop on eBay. I like the extra real estate, and it was way less expensive than finding a working Apple replacement part at the time. My late-2006 Core 2 Duo 17" machine dual boots 10.7.5 and Debian nicely. I'm fortunate not to have too many X1600-related problems after reapplying thermal compound. I expect the GMA 950 would be even easier to configure in Linux than the X1600.
  6. rsolberg

    SCSI zip drive

    For anybody in the Pacific Northwest, Seattle RePC has a couple large totes full of external ZIP drives. Most are parallel, but there were quite a few SCSI units as well. I briefly considered a 250MB external SCSI, but I realized I wouldn't have room in my luggage for the flight home. I did pick up some PhoneNet dongles, serial cables, internal 50 pin SCSI ribbons, a brand-new 45w "yo-yo" power adapter, and its predecessor, the black rectangular PowerBook 45w adapter. They had more of both in apparently good shape. I also found a PowerBook VST Zip drive mixed in with hundreds of PC optical drives, but I left it for somebody else to find. Also of note, they had a bunch of Jaz, Cliq and other less common removable media drives.
  7. rsolberg

    Brand new PowerBook 1400 CD-ROM

    I've had saved searches on eBay for "PowerBook 1400 CD-ROM" along with all of the relevant Apple part numbers for a few months and it finally paid off. I managed to score a brand new in box 8x unit and it works great. When I opened the box, it clearly was brand new. The drive was still sealed in its plastic sleeve and there wasn't even a speck of dust on it. I'm almost finished my 1400c/166 hardware. I have to finish assembling my replacement NiMH cells into the battery pack and then I'm all done!
  8. The tray loading (233-333MHz) and slot loading (350-700MHz) iMac G3 logic boards are a completely different shape and size, with different electrical and cooling requirements, different monitor connections, so swapping from one family to the other isn't very practical. Some slot loading logic boards can be swapped into other slot loading iMac G3s, but there are some differences on later boards that may complicate things. I'm not as familiar with tray loading iMac G3s, but I believe the logic boards have interchangeability between revisions.
  9. EvilCapitalist's suggestion is a good one. If the drive powers up without anthing on its IDE connector, it's probably a jumper setting. If it doesn't, your power brick may be failing. I've had some of those fail before. One would spin up some drives, but not others due to differences in current required for spinup. I explicitly remember having a problem with iMac Maxtor drives and IDE/USB interfaces. I think the drive needs to be configured as Master in the iMac, but I had to change it to Slave (or maybe Cable Select) for it to cooperate with the adapter. Here's the jumper settings for your drive: http://www.seagate.com/staticfiles/maxtor/en_us/documentation/quick_specs/diamondmax_30_vl_ultra_ata_100_quick_specs.pdf
  10. rsolberg

    Power macintosh g4

    You're right. All 601s used in Macs were manufactured by IBM. There were some 601s with a Motorola logo on them, but those were actually IBM manufactured as far as I can tell.
  11. If the FireWire extensions avenue doesn't lead to a solution, I'd be inclined to suspect a problem with the drive. Does the drive show up in Apple System Profiler? If so, it's probably a hardware issue, not software. Usually, FireWire-attached optical drives will read discs as long as the FireWire extensions are loaded. In Mac OS 9.1 and later, the Finder has disc burning capabilities. This may be limited or disabled if an Apple supported burner isn't present, but the Finder should still read discs, and third party burning software can write to blank media.
  12. I haven't had any issues formatting and writing HD (High Density/1.4/1.44MB) floppies in the versions of Mac OS you've listed with a USB floppy drive. If the drive can read and write MS-DOS formatted HD disks, it can read and write HFS (Mac OS Standard) HD disks in 9.2.2 or 10.4.x. Make sure to format the disks as HFS/Standard and not HFS+/Extended for compatibility with systems prior to Mac OS 8. Mac OS X up to 10.5.8 includes full read, write, and format capabilities for HFS/Standard HD floppy disks.
  13. rsolberg

    Power macintosh g4

    The PowerPC architecture is a product of the "AIM Alliance" whose members were Apple, IBM, and Motorola. Some generations and variations of PowerPC processors found in Macs were manufactured by both IBM and Motorola, while some were only manufactured by one or the other. PowerPC G4 (PPC 74xx) processors were only made by Motorola and later its semiconductor spinoff, Freescale. IBM participated in the design process of the G4, but didn't produce them itself. At the time, IBM was manufacturing PowerPC G3 series parts (PPC 740/750) in volume that were used in many Apple models for some time even after the introduction of the G4. Both IBM and Motorola produced some of the earlier G3 processors used in Macs, but IBM produced most of the later, higher speed G3s as Motorola moved to production of the G4 series. IBM exclusively manufactured the G5 series processors. (PPC 950) PPC 601, 603, and 604 series - IBM and Motorola G3 740/750 233-366MHz - IBM and Motorola G3 745/755 - Motorola only G3 750 (with letter suffixes) IBM only G4 74xx Motorola/Freescale only G5 950 IBM only
  14. Do you have "FireWire Enabler" and "FireWire Support" in your Extensions folder?
  15. rsolberg

    Which version of Quicktime? 68040, OS 8.1?

    QuickTime 4.0.3 is the last 68k version. It requires System 7.1.1 or later, a 68020 or higher, and at least 8MiB of RAM. QuickTime typically uses its own container file format for movies. The file type code is "MooV" and can have the extension ".mov" for cross-platform compatibility. These containers can hold multiple video and audio tracks in a number of different encoding formats. In 68k QuickTime 4, the built in video codecs include: Apple Video Codec Animation Graphics Cinepak (also called Compact Video) Sorenson Video
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