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Try, as much as possible, the messy situation around SCSI adapters on the

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EB164 family. The mess is such that it is hard to document, but try to do the
best we can.

Submitted by:	Christian Weisgerber <naddy@mips.inka.de>
This commit is contained in:
Wilko Bulte 2001-01-06 18:18:44 +00:00
parent 47ecee5e83
commit f994ec91d8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=70717
1 changed files with 10 additions and 4 deletions
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14
release/texts/alpha/HARDWARE.TXT
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@ -618,8 +618,7 @@ The 3000/300 series has a half-speed TurboChannel compared to the other
bus. Caveat empor.
ISDN interface:
ISDN does not work on FreeBSD (to be honest I don't think there is any
operating system, including Tru64 Unix, that can use it).
ISDN does not work on FreeBSD.
Memory:
DEC3000/300-class uses standard 36 bit, 72 pin Fast Page Mode SIMMs.
@ -782,14 +781,21 @@ The SRM can boot from Qlogic 10xx boards or the Symbios 53C810[A].
Newer Symbios 810 revisions like the Symbios 810AE are not recognised by
the SRM on PC164. PC164 SRM does not appear to recognise a Symbios 53C895
based host adapter (tested with a Tekram DC-390U2W). Cards like the Tekram
DC-390F (Symbios875 based) have been confirmed to work fine on the PC164.
based host adapter (tested with a Tekram DC-390U2W). On the other hand
some no-name Symbios 53C985 board has been reported to work.
Cards like the Tekram DC-390F (Symbios875 based) have been confirmed to
work fine on the PC164. Unfortunately this seems to be dependent on the
actual version of the chip/board.
Symbios 53C825[a] will also work as boot adapter. Diamond FirePort, although
based on Symbios chips, is not bootable by the PC164SX SRM.
PC164SX is reported to boot fine with Symbios825, Symbios875 and Symbios876
based cards.
In summary: this family of machines is 'blessed' with a challenging
compatibility as far as SCSI adapters go.
SRM quirks:
PC164 the SRM sometimes seems to loose its variable settings.
"For PC164, current superstition says that, to avoid losing settings,