Thread
Mac Plus SCSI enclosure
Greetings! Can anyone recommend specific* external SCSI enclosures that are known working with the Plus?
Here's why I ask: my Plus only wants to talk to one particular drive (an Apple 40MB unit pulled from my SE/30) in one particular enclosure (a no-name beige rectangle with a pair of HD50 connectors on it, one properly terminated of course, which has circuit boards for passing the signal to the drive cable, rather than being a simple 3-connector cable in a housing). It fails to see any other drives installed in that box, however. If I connect the same working drive in e.g. a LaCie enclosure with two Centronics ends, again one terminated, the little box never sees the drive. The LaCie box works fine on the SE/30 with whatever installed. So do any other drives in the no-name box. EVERYTHING works fine on the SE/30. Nary a complaint.
I'm aware of the Plus' finicky SCSI implementation, but I had hoped that my latest purchase - a CF AztecMonster developed with the Plus in mind - would be less troublesome when combined with the known-working box, termination power jumpered on, and a SCSI cable modified with RST removed according to its creator's specifications-- but no luck. I've also tested the available permutations of TERMPWR and RST en/disablage for good measure. I'd just write the system off as having dodgy SCSI hardware, except that, dammit, it still works fine with the noisy ol' Apple 40MB drive!
:?: DOES NOT COMPUTE
*and preferably obtainable - I'd love to run across a 20SC, but have seen none in 4 months' looking
Here's why I ask: my Plus only wants to talk to one particular drive (an Apple 40MB unit pulled from my SE/30) in one particular enclosure (a no-name beige rectangle with a pair of HD50 connectors on it, one properly terminated of course, which has circuit boards for passing the signal to the drive cable, rather than being a simple 3-connector cable in a housing). It fails to see any other drives installed in that box, however. If I connect the same working drive in e.g. a LaCie enclosure with two Centronics ends, again one terminated, the little box never sees the drive. The LaCie box works fine on the SE/30 with whatever installed. So do any other drives in the no-name box. EVERYTHING works fine on the SE/30. Nary a complaint.
I'm aware of the Plus' finicky SCSI implementation, but I had hoped that my latest purchase - a CF AztecMonster developed with the Plus in mind - would be less troublesome when combined with the known-working box, termination power jumpered on, and a SCSI cable modified with RST removed according to its creator's specifications-- but no luck. I've also tested the available permutations of TERMPWR and RST en/disablage for good measure. I'd just write the system off as having dodgy SCSI hardware, except that, dammit, it still works fine with the noisy ol' Apple 40MB drive!
:?: DOES NOT COMPUTE
*and preferably obtainable - I'd love to run across a 20SC, but have seen none in 4 months' looking
You already did format a drive in the LaCie box with interleave 1:3, I suppose?
I hardly can believe its an enclosure issue. I had such 40MB 5,25 inch drives in my MacII.
I think those are just slow enough for a Plus. Newer drives must be slowed down in order to talk to a Plus.
I hardly can believe its an enclosure issue. I had such 40MB 5,25 inch drives in my MacII.
I think those are just slow enough for a Plus. Newer drives must be slowed down in order to talk to a Plus.
Could you try LIDO on your SE/30 and the LaCie box to set the interleave maybe?
LIDO 3.X used to be on Macintoshgarden, but the site is down (again).
I might look if I stored it locally, in case you would like to try.
I offered my old (SCSI) devices here for costs of shipping:
http://www.macdomain.org/index.php?topic=464.0
Such a Syquest beast might be suitable for a Plus.
LIDO 3.X used to be on Macintoshgarden, but the site is down (again).
I might look if I stored it locally, in case you would like to try.
I offered my old (SCSI) devices here for costs of shipping:
http://www.macdomain.org/index.php?topic=464.0
Such a Syquest beast might be suitable for a Plus.
Playing with my new iPad tonight!These external SCSI enclosures and drives seem to work fine with my Plus:
>POWERUSER with an Apple logo'd 40MB Quantum ProDrive LPS 3.5" hdd, EPROM ©1990.
>MACBOTTOM SCSI by Personal Computer Peripherals Corp. with an Apple logo'd 40MB Quantum ProDrive LPS 3.5" hdd, EPROM ©1990.
>generic enclosure with a Maxtor 7290SR 3.5" hdd, unclear about the size (in "get info" the Size reads 58.7 MB on disk (61,581,312 bytes used).
>generic enclosure with a Seagate ST-296N 5.25" 85MB hdd (this thing is loud and old, I think its circa 1988).
You could always setup a Zip 100 MB drive to act as a hdd for your plus!
As a side note, I am attempting to fix an Apple Hard Disk 40SC with a 5.25" Quantum Q250 40MB -- see the video here of the horrible sound it makes when powered up:
http://youtu.be/TfZLLiu38rs
The power supply seems to be ok, it measures a steady +11.75v/+5.11v with the drive connected. Ideally I would like to replace it with a newer Quantum ProDrive ELS Internal 3.5 Inch HDD 160MB SCSI (Firmware ©1993), but I am having trouble getting my Plus to boot up and recognize it. I also tried all versions of Apple's Drive Setup 1.0.5-1.7.3 on a PowerMac 6100, but it says there is "no disk" at the SCSI address of the drive.
>POWERUSER with an Apple logo'd 40MB Quantum ProDrive LPS 3.5" hdd, EPROM ©1990.
>MACBOTTOM SCSI by Personal Computer Peripherals Corp. with an Apple logo'd 40MB Quantum ProDrive LPS 3.5" hdd, EPROM ©1990.
>generic enclosure with a Maxtor 7290SR 3.5" hdd, unclear about the size (in "get info" the Size reads 58.7 MB on disk (61,581,312 bytes used).
>generic enclosure with a Seagate ST-296N 5.25" 85MB hdd (this thing is loud and old, I think its circa 1988).
You could always setup a Zip 100 MB drive to act as a hdd for your plus!
As a side note, I am attempting to fix an Apple Hard Disk 40SC with a 5.25" Quantum Q250 40MB -- see the video here of the horrible sound it makes when powered up:
http://youtu.be/TfZLLiu38rs
The power supply seems to be ok, it measures a steady +11.75v/+5.11v with the drive connected. Ideally I would like to replace it with a newer Quantum ProDrive ELS Internal 3.5 Inch HDD 160MB SCSI (Firmware ©1993), but I am having trouble getting my Plus to boot up and recognize it. I also tried all versions of Apple's Drive Setup 1.0.5-1.7.3 on a PowerMac 6100, but it says there is "no disk" at the SCSI address of the drive.