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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.uwa.edu.au!classic.iinet.com.au!news.uoregon.edu!usenet.eel.ufl.edu!news.iag.net!rn.com!not-for-mail From: larry@rn.com (Larry Snyder) Newsgroups: comp.periphs.scsi,comp.unix.bsd.freebsd.misc Subject: 2940/Opti/Quantum Grand Prix 7200RPM Date: 8 Sep 1995 11:48:13 -0400 Organization: Larry's ISDN News Server at Home Lines: 18 Message-ID: <42pojt$1ho@trauma.rn.com> NNTP-Posting-Host: rn.com Xref: euryale.cc.adfa.oz.au comp.periphs.scsi:37187 comp.unix.bsd.freebsd.misc:5823 My Quantum drive won't run reliable at 10mhz with sync transfers enabled here is the boot info: Sep 8 10:40:50 trauma /kernel: ahc0 <Adaptec 294X SCSI host adapter> rev 0 int a irq 11 on pci0:18 Sep 8 10:40:50 trauma /kernel: ahc0: reading board settings Sep 8 10:40:50 trauma /kernel: ahc0: 294x Single Channel, SCSI Id=7, aic7870, 16 SCBs Sep 8 10:40:50 trauma /kernel: ahc0: Downloading Sequencer Program...Done Sep 8 10:40:50 trauma /kernel: ahc0: Probing channel A Sep 8 10:40:50 trauma /kernel: (ahc0:0:0): "QUANTUM XP32150 581H" type 0 fixed SCSI 2 Sep 8 10:40:50 trauma /kernel: sd0(ahc0:0:0): Direct-Access 2050MB (4199760 512 byte sectors) Sep 8 10:40:50 trauma /kernel: pci0:19: vendor=0x1095, device=0x640, class=storage [not supported] Sep 8 10:40:50 trauma /kernel: pci0: uses 8392704 bytes of memory from f8000000 upto f87fffff. the machine is a 100 mhz Opti Pentium with a 2940. From time to time with the 10mhz rate enabled with sync operation - the SCSI buss will lock up solid.