Help with SCSI

[danbeaver]

SCSI drives are both forward and backward compatible and those brands are known to work well with the Amiga hardware (I prefer the Atlas); since both drives are giving you trouble, the common denominator seems to be the controller or computer.  Would you mind listing your setup (KS, WB, and hardware) and when you last had the Trumpcard working?

In general, the 50-to-80 pin converters can be left without any jumpers unless you need your terminators powered; I suggest using both end, powered and active termination on a bus/cable that has hard drive that exceed SCSI-1 specifications, and your's do.

Also, are you entering the correct device name in HDToolBox?  It should be something like, trumpcard.device as scsi.device is reserved for Amiga controllers.

"So many questions, so little time."

[danbeaver]

"HP does not have any jumpers, but 50 to 80 adapter has following, syn, dly and mtr what ever they do?"

LED - lights up on drive access

SYN - synchronize, Synchronous spindle synchronizing signal generated by host or drive

DLY - delay, Asserted by host to enable Delayed Motor Start Option (motor starts         at power on or after a delay of 12 seconds times drive ID). This and MTR are mutually exclusive options

MTR - motor, Asserted by host to enable Motor Start Option

Wide hard drive cable with proper termination (example):
[Active, wide & powered Terminator]<-------->[SCSI Controller]<-------->[Wide (16-bit) Hard drive]<-------->[any SCSI HDD]<-------->[Active, wide & powered Terminator]

At high data transmission speeds the data signal is subject to "noise" and signal variations; the Passive termination uses resistors to dampen mild noise, but an Active terminator uses a powered circuit to "smooth the signal out."