Scsi Termination On A 4000T

THX1138 · 09 October 2008, 19:35

If i didn't want to use the scsi controller anymore and just wanted to use the ide controller instead,would i have to use a terminator on it or not ?

The reason that i am asking this is because,once i disconnect the scsi cable from the scsi controller and just rely on the ide,the floppy drive doesn't seem to respond unless i plug the scsi devices back in ?

rkauer · 09 October 2008, 21:22

Short answer: Yes, you need.

Long one: the SCSI controller will poll for devices (and nothing respond to it), adding a very long time to boot (10 minutes?).

Ought of curiosity: why not use the SCSI? It is much more fast than IDE and don't steal computational power from the main CPU.

Magic · 10 October 2008, 13:08

Another quick and dirty solution is to use A4KD Kickstart ROMs in the A4000T. The machine boots up fast, SCSI is disabled, and workbench.library is in ROM again

This was also tested and working with OS4 and my CS PPC before I sold it.

THX1138 · 10 October 2008, 18:38

Quote:

Originally Posted by Magic

Another quick and dirty solution is to use A4KD Kickstart ROMs in the A4000T. The machine boots up fast, SCSI is disabled, and workbench.library is in ROM again

Thanks for the tip.......didn't know you could use 4000D roms in a 4000T !

THX1138 · 10 October 2008, 18:40

Quote:

Originally Posted by rkauer

Short answer: Yes, you need.

Long one: the SCSI controller will poll for devices (and nothing respond to it), adding a very long time to boot (10 minutes?).

Ought of curiosity: why not use the SCSI? It is much more fast than IDE and don't steal computational power from the main CPU.

The only reason i am not using the onboard Scsi,is because OS 4.0 doesn't recognize it for the installation !

THX1138 · 11 October 2008, 08:43

There is an internal header for the scsi and an external port as well.

Would i need to put a terminator on both of these ?

rkauer · 12 October 2008, 06:39

The small PCB where the serial port, parallel and video port are connected also contains a 50pin connector. This is actually a terminator for plugging the end of the SCSI cable into.

THX1138 · 12 October 2008, 17:48

Quote:

Originally Posted by rkauer

The small PCB where the serial port, parallel and video port are connected also contains a 50pin connector. This is actually a terminator for plugging the end of the SCSI cable into.

Thanks !.............now i can take off my scsi terminated device !

09 October 2008, 19:35	#1
THX1138 Amiga Centurai Join Date: Nov 2002 Location: UK Posts: 526	Scsi Termination On A 4000T If i didn't want to use the scsi controller anymore and just wanted to use the ide controller instead,would i have to use a terminator on it or not ? The reason that i am asking this is because,once i disconnect the scsi cable from the scsi controller and just rely on the ide,the floppy drive doesn't seem to respond unless i plug the scsi devices back in ?

10 October 2008, 13:08	#3
Magic Registered User Join Date: Aug 2007 Location: USA Posts: 360	Scsi Termination On A 4000T Another quick and dirty solution is to use A4KD Kickstart ROMs in the A4000T. The machine boots up fast, SCSI is disabled, and workbench.library is in ROM again This was also tested and working with OS4 and my CS PPC before I sold it. Last edited by Magic; 11 October 2008 at 07:35.

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09 October 2008, 21:22	#2
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	Short answer: Yes, you need. Long one: the SCSI controller will poll for devices (and nothing respond to it), adding a very long time to boot (10 minutes?). Ought of curiosity: why not use the SCSI? It is much more fast than IDE and don't steal computational power from the main CPU.

11 October 2008, 08:43	#6
THX1138 Amiga Centurai Join Date: Nov 2002 Location: UK Posts: 526	There is an internal header for the scsi and an external port as well. Would i need to put a terminator on both of these ?

12 October 2008, 06:39	#7
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	The small PCB where the serial port, parallel and video port are connected also contains a 50pin connector. This is actually a terminator for plugging the end of the SCSI cable into.

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