Sun Ultra 1 backplane
#3
RE: Sun Ultra 1 backplane
The CD drive was originally terminated with a jumper. I now have a jumper set in one of the hard drives so as to terminate the chain, otherwise the system would not boot. It works fine, only I no longer have a spare SCSI connector for the CD drive so it is disconnected.

[Image: 0AL5hat.jpg]

I guess I could solder on the back of one of the 80 pin connectors on the backplane but I am not confident in the reliability in the long term. The top connector is definitely not a possibility, the spacing is indeed an issue, plus I am not sure it is in good shape to begin with.

The easiest way to go would be to find an SBus card which provided one or two internal SCSI 68 or 50 pins connectors so I could simply run the CD drive from there, but I have been unable to find one?

If it came to that I guess I could just pull one hard drive and find a way to connect the 50 pin CD drive from the SCA connector there through an adapter. It is doable, but I would lose one hard drive :-/

:Indy: R4000 @100MHz, 96MB, 3GB, XL Newport | :O2: R5000 @180MHz, 256MB, 36GB, CRM | :Indigo2: R4400 @250MHz, 192MB, 36GB, Elan + XZ | :Octane: R10000 @250MHz, 1024MB, 8GB+2GB, ESSI.



(This post was last modified: 10-24-2018, 11:49 PM by mamorim01.)
mamorim01
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10-24-2018, 07:24 PM


Messages In This Thread
Sun Ultra 1 backplane - by mamorim01 - 10-24-2018, 05:33 PM
RE: Sun Ultra 1 backplane - by dexter1 - 10-24-2018, 07:04 PM
RE: Sun Ultra 1 backplane - by mamorim01 - 10-24-2018, 07:24 PM

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