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
I can can get you in contact with people with a 20SC in Sweden. I'd like to get one, but I can't pay the shipping from Sweden to the US. Let me know if you are interested.
I'm definitely interested, that would be fantastic!
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.
Wish I could, but stuff totally fails to show up on the bus, or when it does I end up with A/UX HD SC Setup bombing :-/
I used a Rodime 20 Plus that was purchased with my Mac Plus for many years.
mac plus with scsi HD inside
20MB MiniScribe
closed
20MB MiniScribe
closed
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.
I'll give it a shot, er, tomorrow 
Playing with my new iPad tonight!
applefreak, that's an awesome internal drive setup! I like how it piggybacks on the external port without damaging the case/board.
Playing with my new iPad tonight!applefreak, that's an awesome internal drive setup! I like how it piggybacks on the external port without damaging the case/board.
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.