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Date:      Wed, 7 Apr 1999 14:22:52 -0600 (MDT)
From:      "Kenneth D. Merry" <ken@plutotech.com>
To:        ellis@kcc.com (Ellis Joshua)
Cc:        freebsd-hardware@FreeBSD.ORG, ted@stargate.org, patrickr@Exabyte.COM
Subject:   Re: AIC-7890 - can't install 3.1-RELEASE
Message-ID:  <199904072022.OAA04844@panzer.plutotech.com>
In-Reply-To: <2B2253731B41D211846400805F19594B04B0F250@ustcax08.kcc.com> from "Ellis, Joshua" at "Apr 7, 1999 11: 8:18 am"

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Ellis, Joshua wrote...
> >> Running ASUS P2B-S motherboard, with a PII/450.  
> >> Using the onboard AIC-7890 controller with a 
> >> Quantum Viking II 4.5WLS Ultra-LVD drive, attempting 
> >> to install FreeBSD 3.1-RELEASE.
> 
> >> Unexpected busfree.  LASTPHASE == 0x40
> >> SEQADDR == 0x8a
> >> (probe0:ahc0:0:0:1):SCB 0x0 - timed out in datain phase, 
> >> SEQADDR==0x88
> 
> KDM> There is a known hang problem with the 7890, 
> KDM> and it sounds like that's the problem you have. 
> 
> PR> I may be wrong, but if your using that 
> PR> drive in LVD mode it may not be supported 
> PR> at all.... It was my understanding that LVD 
> PR> is not supported yet in LVD mode..

LVD is supported, and has been for a long time.

> TDB> We had this same problem with quantum 4.5g 
> TDB> differential drives and an adaptec 2944uw.
> TDB> It turned out the drive was jumpered wrong 
> TDB> - wish I could remember exactly which jumper 
> TDB> it was - but it's been quite a while.  

HVD is a very different animal than LVD.  The 2944UW is a HVD card.

> Thanks to those who responded.  The first thing I did was flash the P2B BIOS
> to rev 1008 (Feb-1999), to see if the problem may have been with the
> on-board controller.  Same result.  Pulled the drive, jumpered it to run in
> SE mode, and viola, it worked: 3.1-RELEASE installed and the system is very,
> very fast.  I'll check -STABLE to see if it improves the situation, and try
> it again in LVD mode.  If I can't get max throughput on the drive for now,
> that's okay, too.

Are you *sure* you have it plugged into the LVD port on the motherboard?
There are two 68-pin ports on the board.

Also, how do you have it terminated?  Do you have a "twisty" cable with an
LVD terminator block on the end?  LVD drives don't have terminators, you
have to terminate them externally, even when they're on a single ended bus.

Ken
-- 
Kenneth Merry
ken@plutotech.com


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