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Udo.Keller

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  1. The v5.5 is a comfortable option, but is has some limitations: The terminator is always on and cannot be switched off. So the v5.5 has to be the last device in the chain. The v5.5 has a DB25 connector. Most of the external enclosures have the larger Centronics-Style connector. Bottom-line: If it's just your Mac and the SCSI2SD plugs directly into it, then, the v5.5 is super comfortable. An external enclosure in combination with a V5.1 is more general, but will take more space.
  2. Let's begin with a simple case: Tell us about the IIsi: Does it still contain a hard drive? Does it have external hard drives as well? If yes, what are their SCSI IDs? Identify a SCSI ID not used so far. Go get a new SD card, put it into the SCSI2SD On the SCSI2SD enable only one SCSI target assign the SCSI ID identified above to the SCSI target Start Sector = 0 check the "Auto" box Sector size = 512 limit the size to 1GB Boot the IIsi with the 6.0.8 boot floppy that contains Lido. Does
  3. Just to be sure: Have the system folders on 8.6 and 7.5.5 been blessed? I guess the 9.1 partition is SCSI-ID 0, right? What are the SCSI-IDs of the other partitions? What happens if you exchange SCSI-ID 0 with one of your other partitions?
  4. Maybe I can help with some more details. Attached are some pictures of a new-in-box NewerTech Variable Speed Overdrive for the Quadra 700 and 900. Both the Manual and the Floppy Disk label indicate that there was a version for the IIfx. I did a scan of the VSO User Manual. The driver software is still available online here. NewerTech_VSO_User_Manual.pdf
  5. @BolleHere is what I could contribute: DSCN5750.pdf Just let me know. Not sure why uploading a JPEG did not work for me.
  6. What happens if you take the internal HDD of your SE/30(A) (that is known to be readable and bootable) and install it in SE/30( internally?
  7. Maybe you can try connecting a PATA disk to the IDE-SCSI bridge instead of a CF card. If it works O.K., then we know the IDE-SCSI bridge is alright and we can focus on the CF card.
  8. Here's another comparison: AEC-7720U with CF card versus spinning platter HD (Toshiba MK3021GAS). Both the CF card and the HD have been initialized with Intech HD SpeedTools v3.6. The HD, hooked behind the AEC-7720U, does not perform better than a CF card. For me, the performance bottleneck seems to be the SCSI-IDE bridge. What do you think?
  9. Did that. And since I was flashing the AEC-7720U to the Mac-specific firmware version 3.7m anyway, I took the AztecMonster, held it against the Acard firmware flashing tool and guess what? The firmware flashing tool identified the AztecMonster firmware as Acard version 3.7m. So from a firmware point of view, the AztecMonster is a 7720U running firmware version v3.7m. Here are the measurements, done with my SE/30. IMHO, they are indistinguishable.
  10. Copyright is 1991, however, some of the ICs have built dates from 1993. And here is a closeup shot of the PLCC sockets.
  11. I just opened my newly received Quadra 700, and found that strange graphics card inside. The former owner did wipe the disk, so there's no control panel and no extension available. Does anybody know this beast? Thinking further, does anybody have suitable information or software to bring it back to life? Here is a better picture: http://dl.dropbox.com/u/2545101/DSCN2122.jpg
  12. The HDST driver, in combination with a CF card and an Acard SCSI-IDE bridge delivers more or less the same performance as a spinning platter HDD behind the same SCSI-IDE bridge. This is true for a G3 Powermac, but not for the SE/30: http://68kmla.org/forums/viewtopic.php?f=7&t=17047&start=82 The very same CF card with the very same HDST driver and the very same SCSI-IDE bridge shows better performance when used with a Macintosh that has a more performant SCSI bus. Both read and write performance reach the same level. Summary: (1) The bottleneck for write performance is not in th
  13. The CF AztecMonster is built around an Acard SCSI-IDE bridge, the same one that is used in the AEC-7720U. So I took an AEC-7720U, a Toshiba MK3021GAS 2.5" HDD and my G3 Powermac running MacOS 9.2 and got the following results: And here's the AztecMonster with a CF card, attached to the same Powermac as above: Finally, a real SCSI HDD (Quantum Fireball 1280S) not needing the Acard SCSI-IDE bridge chip: Powermac G3 Findings: • In combination with an Acard SCSI-IDE bridge, a real HDD and a CF card show similar performance. Not the same, but similar. • In both cases, the write perfor
  14. QuickBench claims that it bypasses the system disk cache as well. FWIW, here's the Kingston SSD I benchmarked last month. But this time, it has been initialized with HDST instead of HDT: And here, for reference, is the FWB benchmark for the same SSD, taken 4 weeks ago: Again, the same findings as above: • HDST enhances the read performance to 1.8 MB/sec. • Write performance is still limited to 407 KB/sec.
  15. The TIFF attachments seem to make problems for some comrades, sorry. From my side they looked O.K. Here comes a 2nd approach, this time with PNG attachments. So we go again. Absolutely. I took QuickBench, available as part of Intech HD SpeedTools, and did benchmark one of my CF cards w/ AztecMonster again: For reference, here is the FWB benchmark result, taken 4 weeks ago: The results for both sustained read and sustained write are more or less the same. Random read and random write are comparable, too. Please note that the FWB diagram has a linear x-axis, whereas the QuickBench
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