Help: Problems with 7880UW controller/IBM HD

[Vitor Santos Costa]

Dear all

I recently bought a Supermicro P6DLS, a 2PII mobo with an integrated 7880,
to which I wanted to connect an IBM Ultrastar 2ES DCAS-34330W. The system is
to be used under Linux. I also have a Pioneer CD-Rom connected to the other
channel.

Unfortunately, the disk behaves pretty slowly. The BootLog for Linux says the
reason is  that  the system does not accept a wide bus, nor synchronous
mode.  We tried changed cables, setting termination in the BIOS, but to no
avail.

We also tried the system under Win95 with EzSCSI. EzSCSI says the disk
is synch and wide bus, but gives only 3.5 MBps on their benchmark.

Has anyone seen similar problems? Any ideas on what is  going wrong  :-(.

Please, also send answers to my personal address (vsc at ncc.up.pt),  as I
don't subscribe to this list.

Thanks for any help,

Vitor

Oct 24 07:50:07 leo kernel: aic7xxx: <Adaptec AHA-294X Ultra SCSI host adapter> 
at PCI 14
Oct 24 07:50:07 leo kernel: aic7xxx: Warning - detected auto-termination.  Pleas
e verify driver
Oct 24 07:50:07 leo kernel:          detected settings and use manual terminatio
n if necessary.
Oct 24 07:50:07 leo kernel: aic7xxx: BIOS enabled, IO Port 0xec00, IO Mem 0xfebf
f000, IRQ 10, Revision B
Oct 24 07:50:07 leo kernel: aic7xxx: Wide Channel, SCSI ID 7, 16/255 SCBs, QFull
 16, QMask 0x1f
Oct 24 07:50:07 leo kernel: scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast
 SCSI) 4.1/3.2
Oct 24 07:50:07 leo kernel: scsi : 1 host.
Oct 24 07:50:07 leo kernel: scsi0: Scanning channel A for devices.
Oct 24 07:50:07 leo kernel: scsi0: Target 2, channel A, refusing WIDE negotiatio
n; using 8 bit transfers.
Oct 24 07:50:07 leo kernel:   Vendor: PIONEER   Model: CD-ROM DR-U24X    Rev: 1.
01
Oct 24 07:50:07 leo kernel:   Type:   CD-ROM                             ANSI SC
SI revision: 02
Oct 24 07:50:07 leo kernel: scsi0: Target 8, channel A, refusing WIDE negotiatio
n; using 8 bit transfers.
Oct 24 07:50:07 leo kernel: scsi0: Target 8, channel A, refusing synchronous neg
otiation; using asynchronous transfers.
Oct 24 07:50:07 leo kernel:   Vendor: IBM       Model: DCAS-34330W       Rev: S6
5A
Oct 24 07:50:07 leo kernel:   Type:   Direct-Access                      ANSI SC
SI revision: 02
Oct 24 07:50:07 leo kernel: Detected scsi disk sda at scsi0, channel 0, id 8, lu
n 0
Oct 24 07:50:07 leo kernel: scsi : detected 1 SCSI disk total.
Oct 24 07:50:07 leo kernel: SCSI device sda: hdwr sector= 512 bytes. Sectors= 84
67200 [4134 MB] [4.1 GB]