SCSI Problem

Posted on 2012-08-16
Last Modified: 2012-08-31
I am getting the following error since adding a new scsi card from an XP PC to a Win7 PC. I had a 50 pin cable but had to buy a new card and adapter to fit the requirements of WIN7.

I get this error:

insufficient termination detected on the VD/SE connectors

Not sure where the issue lies with the card BIOS the PC BIOS or cable and adapter

No errors in device manager on pc
Question by:booneball
    LVL 13

    Expert Comment

    Can you check the termination on the devices connected to the internal and external 50-pin connectors. Terminate the SCSI devices at the ends of the cable and leave the other devices unterminated.

    Author Comment

    how do I do this please.

    Author Comment

    for info the original cable is 50 pins the adapter is 68 I think and there are 2 internal connectors and 1 external.
    LVL 13

    Expert Comment

    There is your problem :).

    You shouldn't connect a 68 pins with a 50 pins. That causes trouble with the termination.

    Take a look at this:

    It's written for Mac, but the same for Windows.

    Author Comment

    I thought I would explain fully what we are trying to do.

    We had an XP 32 bit PC with a fujitsu scanner attached . The card was a scsi 2 with a cable with 50 pins each end. All worked fine

    We had to update the users PC and this was with a O/S of WIN7 64bit.

    The new Win7 PC took the new SCSI card an ASC29160 no problem. When attached to the scanner via the 50 pin the scanner end and the 68 pin adapter the card end  we got the error aforementioned.

    There are no settings to change on the scanner. Do we require a different cable and an adapter where the 50 50 meets 68 has jumpers.
    LVL 55

    Accepted Solution

    You need something to terminate the high order bits, see top picture of for example.

    It doesn't really matter which end of the cable you terminate the high byte since you're only using the lower 8 bits on the old scanner.

    Author Comment

    what i ended up doing was buying a cable of ebay which was 50 to 68 and it worked first time.

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