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AndiS

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  1. Hi! I want to outfit my G4 MDD with a PCI SCSI card. I have found a Mac version of an Adaptec AHA-2940uw and tried to mount it in a PCI slot. As soon as I do this, the Machine does not find a System Folder to boot anymore. After removing the card, I still have to clear the PRAM before everything works as expected again. Now, I never used SCSI with any "New World" Macs, not even back in their time. Are there any preparations I have to do before putting the card in the machine? Is it maybe trying to boot from the SCSI bus, where nothing is connected yet? Do i
  2. I had the same model back in the day and it was the Mac I liked most of all I owned. I reflowed it twice using a hot air gun. First time it worked again for a few months, second time it remained dead. I also reflowed my sisters 900 Mhz G3 model using the same method. It also only worked briefly afterwards. Nice to see that there are still some around and repaired. Mine has long gone to recycling. Today I would most likely also try something like you did. But more than 15 years ago, my electronic skills were just not up to that.
  3. Funny, I just did a little comparison between an 68040 and an PPC7455 for the recent #MARCHintosh. I compressed some videos and did some batch image manipulation. The summary is - a PPC7455 (1.25 Ghz) is about 100-200 times faster than an 68040 (33 Mhz) at the same tasks using as similar software as possible. (See the my #MARCHintosh 2021 pages) I did not compare with anything really modern though.
  4. I use a Compact Flash to IDE adapter and it just works. CF and IDE are electrically compatible, so there is just an adapter needed, not a converter of any kind.
  5. 5V are better than 4.8 but keep an eye on the 12V rail too. I had to apply contact cleaner to PP1 to get it going again. I would also check/reflow all solder connections of the cables that run from the analog board to the CRT, maybe one is bad and arcs internally. Running the Mac in the dark and look for arcing could also be useful.
  6. Look at the following thread: Mac Classic with a wobbly screen after recap In my case the power supply voltage was too low which was caused by a faulty potentiometer (PP1 on the Analog Board). Search for the "Classic Mac Repair Notes v2" PDF where you'll find lots of info about repairing old macs - including how to measure the voltages from the external floppy port.
  7. Hi The last PowerMac G4 that was able to boot into MacOS 9 (MDD 2003) came with a 64 MB ATI Radeon 9000 Pro Mac Edition. I have also been on the lookout to find something better. But as far as I can tell, ervery option that would support CoreImage on OSX would not support 3D acceleration on OS9. So it depends on what you are more interested in. OS 9 or OS X performance.
  8. I have MacPPP 2.0.1 and MacTCP 2.1 running on a Mac Classic with System 7.1 and there are no problems connecting via PPP and SLiRP on a Linux Box. Except of course, I'm also stuck at 9600 baud. Using the Mac as a serial terminal is the same - 9600 works, higher bitrates only show garbled output. System 7.1 is updated and configured pretty extensively (Thread Manager, Drag and Drop...). It uses a bit less than 1600K after boot and is much more responsive than 7.5 on this machine.
  9. I'm not sure how useful this is, but the idea just sounds like an awesome hack! :) It's just like the C64 disk drives that essentially used the same processor as the C64 itself. People built programs back in the 1980s that used the disk drive as a copprocessor! Also see this current thread And last but not least. Considering there is a modern SSH client available for 68040 machines, it should be possible to build a Twitter client that runs on this directly. But Twitter on a 68000 would be even cooler in my view!
  10. Probably not. I can only reach 9,6k reliably with a Mac Classic. A SE/30 should be faster of course, but nowhere near 115k. There is a website stating that 56k are possible with a SE/30 http://www.knubbelmac.de/themen/netzwerke/netzwerkgeschwindigkeit.html (its German but look at the very bottom)
  11. I like to use double-sided adhesive tape. Not the very thin version but the soft and "foamy" type. It is very strong and still can be removed by pushing from the back.
  12. It is good that I read this after trying because I just might not have bothered to. I got one of these for a Mirrored Drive G4 and it works just fine. I put it into the ATA-66 Slot, connected a 120 GB SSD and was able to format and use it without problem. Cloning the system disk and booting from the SSD was also no issue - MacOS 9.2.2 as well as 10.4.8 So at least for late G4s this seems a good and cheap option (just north of 10 Euros). G3s and earlier G4s with their somewhat different/incomplete IDE implementation may be a different story. I have none to test that. No
  13. Check the voltages of the 5V and 12V rail. It can be done from the Floppy port and is described in the Classic Macintosh Repair Guide. The menioned Optoisolator can be the culprit, but so can the nearby PP1 potentioeter. In any case - checking the voltages while the machine is running, will give you an idea if this part of the analog board is the issue.
  14. @Bolle I've just found this thread and did not (yet) read it all. I just want make sure that you aware of this device: Onion Omega2 I've successfully connected to WIFI using a Linux Laptop as a PPP Bridge with the "slirp" package. I am also still experimenting with an ESP32 setup but thinking about that, I might just forget about the ESP and start using this Onion Device with OpenWRT. It should more or less "just work"
  15. Don't worry, it is not too bad. I've replaced several back in the day when the machines were still in regular use and never had more than one or two screws left over Just take your time and make pictures at every step and you'll do fine if the HD's time has come.
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