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80 pin -> 50 pin SCSI adapter in SE/30

24bit

Well-known member
I only saw one more or less affordable 73GB new IBM drive here for EUR 63.- plus costs for an adapter.

Who would need 73 GB for a 68k Mac? Maybe the Amiga SCSI-1 to CF are the way to go rather.

powerpup, I hope I didnt hurt anybodies feelings, I´m by far no expert with SCSI HBA.

The few experts I knew, sadly moved to cemetary many years ago. The SCA would be trial and error for me.

 

PowerPup

Well-known member
@24bit: Oh no, you didn't hurt anyone's feelings. I was just being silly by using the word "expert." :eek:) Trial and error is my method for messing with SCSI too. ;)

 

Brooklyn

Well-known member
Still no luck with the drive, I noticed it is causing my Mac SE/30 screen to have some wavy-ness that travels from the bottom of the screen up. I think it much have some interference with the power supply. Went to my 250mb Apple drive for now, going to have to revisit the scsi drive for another project. :-/

 

mcdermd

Well-known member
I am dealing with the same issue on a SCA drive connected to a 50-pin cable with a 50-pin to 80-pin drive adapter. I'm thinking one of these four ways should be successful but .. which one? The SCA drive I'm using (and most - all? - SCA drives) provides no termination so I'm going to have to have a terminator on the cable. Do I ...

1. get a 50-pin inline terminator to go between the 50-pin cable and the adapter (or logic board).

2. get an 80-pin inline terminator to go between the adapter and the SCA drive.

3. get a 50-pin to 80-pin adapter to go between the logic board and an 80-pin cable plus an inline 80-pin terminator to the drive.

4. get a 50-pin to 80-pin adapter to go between the logic board and a multi-connection 80-pin cable plus a terminator for the third cable connection (the one after the logic board and the drive).

5. Get a different 50-pin to 80-pin adapter that has termination onboard.

 

ojfd

Well-known member
mcdermd'

There are no such things as 80-pin inline terminator or 80-pin cable. :-D

Thihk again and reformulate your question(s).

 

mcdermd

Well-known member
That should teach me to go to bed at 1:30am instead of posting here. :(

SCSI is still such a black art for me.

 
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