* Me * wrote:
>>Take a look at these two cards:
>>
>>The SYM22810 (which looks identical to the Sun 375-0005 single ended
>
> board)
>
>>http://www.lsilogic.com/products/scs.../lsi22801.html
>>
>>and the SYM22802 (which I assume is the same as the Sun 375-0006 HVD
>>board, although I can't verify this - can anyone??)
>>http://www.lsilogic.com/products/scs.../lsi22802.html
>>
>
>
> Dave,
>
> I have a 375-0006 and a 375-0005 sitting on my shelf. Is there anything
> particular that you would like to know from them?
>
> A quick look at the boards shows the same SYMBios chip part number ... with
> the difference appearing to be the drive chips (transistors) interface to
> the SCSI connections.
>
> Let me know if there any anything you require and I will see what I can do
> to help. Note that I will be away from email for a couple of days.
>
> Cheers
>
>
I'm interested basically in how similar the boards look. If the layout
is very similar between the two boards, then it may be possible to lift
some chips off of the HVD board, lift some chips off of the SE board and
move them across.
It would need to be the chips that connect to the SCSI connectors. But
if the Sun boards are like
http://www.lsilogic.com/products/scs.../lsi22801.html http://www.lsilogic.com/products/scs.../lsi22802.html
then it looks impractical. They are too dissimilar.
Perhaps tomorrow I'll shut my U80 down and look inside to see if it is
practical to connect a SE tape drive to one of the two SE controllers
that are already on the U80's motherboard.
A DDS-3 tape drive was available as an internal option, and the machine
has spare for a floppy as well as two internal 5.25" drives, so I assume
you can fit floppy+CD+tape. But I can't see how - at least from memory,
the connectors will not allow it.
--
Dave K
http://www.southminster-branch-line.org.uk/
Please note my email address changes periodically to avoid spam.
It is always of the form: month-year@domain. Hitting reply will work
for a couple of months only. Later set it manually. The month is
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