SCSI SCA adapter problems/questions

[SuperPickle]

I recently aquired an 80pin drive and shortly thereafter, an adapter->68pin. After installing the drive, I could not get my card to recognize the drive--it would time-out. I swore a bunch, checked and rechecked termination, swapped drives (I have two 80pin drives) and swapped cables until I discovered that they'd both work fine on a normal SE cable besides their burst speed being choked, of course. Are some SCA adapters simply incapable of supporting LVD?

Also, there are some jumper setting on the back of the adapter; some of which I do not understand:
LED
SYN
DLY
MTP
ID3
ID2
ID1
ID0
I'm assuming the LED pins are for making that wonderful little light on the front my case glow and I'm pretty sure I have the IDx jumpers covered, and I believe the DLY jumper is a spin-up delay. Could someone help me with the remaining defs for "SYN" and "MTP"?

Lastly, does anyone know of a how-to guide for SCSI that I could check out. I've read the primer on Ars and have come across others, but most are a little over my head to just sit and plow through front-to-back. What I need is a SCSI for Dummies or rather SCSI for those whose brains hurt after reading normal SCSI litterature.
As always, any help is indispensible. Thanks.

 

[mastertech01]

This is one of the most popular SCSI information sites. You dont need to set any jumpers on the SCA adaptor but the ID. I usually leave them all off it is the boot drive. Some SCA adaptors are not LVD compatible, but they usually will have Term jumper on them if they are SE types. Sometimes the non LVD types can be identified by an orange colored resistor soldered to the back (at least thats what some of mine have). What are the model numbers of the drives themselves. They do make SE 80 pin drives. There may also be a jumper set on the drive to force SE mode. Its good to go to the manufacturer site to view all the jumper settings for each drive that you may not have documentation for. A lot of SCA drives have a set on the front or the botton of the drive, but not at the back where the adaptor is plugged in. It is possible one of your adaptors is LVD and the other is not. Your cable should be an LVD twist to flat cable with an LVD terminator on the end

 

[SuperPickle]

Thanks for the link.
My adapter also has a resister 'above' the jumpers. Perhaps I'm just SOL on this adapter and need to get a new one and that's not a huge deal.

I see after looking at my drives stickers, one is not LVD but one says U160 so I'll still need to get a better adapter for that one. As far as jumpers on the drives, there are no jumpers set at all defaulting the SCSI ID to 0 which is fine and I'm not forcing SE. Crap...need a different adapter, I guess. Anyone have a U160 adapter taking up precious space it their closet they want to unload

 

[mastertech01]

Check the Forsale forums, they sell them there all the time. 29160 will do you just fine and will run LVD, SE, and 50 pin drives off its 3 internal connections.