Date: Thu, 26 Sep 2002 13:25:17 -0700 From: "Jin Guojun [NCS]" <j_guojun@lbl.gov> To: Yanek Korff <yanek@cigital.com> Cc: "'freebsd-hardware@freebsd.org'" <freebsd-hardware@FreeBSD.ORG>, "'freebsd-scsi@freebsd.org'" <freebsd-scsi@FreeBSD.ORG> Subject: Re: SCSI controller & NIC problem - irq11 Message-ID: <3D936D2D.C81D4ADA@lbl.gov> References: <51CC94132526754995E79DCF28C0C34D09BE18@exchange.cigital.com>
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Yanek Korff wrote: > > > but it just does not know why. > > I believe that you put a 33 MHz SCSI adapter into a > > 64-bit/66MHz PCI slot. You can put it into a 32-bit > > PCI slot, or reduce the frequency to 33MHz on > > 64-bit PCI slot. > Alas, the SCSI chipset is integrated on the mobo. Mobo docs are here: > http://www.intel.com/design/servers/SE7500CW2/index.htm > > -Yanek. As LSI web site says, all SCSI controller in 53c1000 family are 66 MHz 53c{1000/1000R/1010/1010R}. But many SCSI adapter makers, who use these chips, state that their SCSI card tested under 33MHz bus clock. LSI document says that 53c1000/1010 family has a 33/66MHz interface to work with both 33 and 66 MHz PCI slot, but I had a Tekram DC-390U3W, which uses 53c1010 chipset, works only at 33 MHz under FreeBSD. I am not sure who is wrong in these specifications. Maybe the BIOS can provide some useful information during the boot, such as, 53C1000-## during SCSI BIOS probe. The ## should be either 33 or 66. If the ## is 33, then you need a jumper on the motherboard to set 53c1000 to work at 33MHz? If it is 66, you need to ask the sym driver developer -- Gerard Roudier -- for help. -- ------------ Jin Guojun ----------- v --- j_guojun@lbl.gov --- Distributed Systems Department http://www.itg.lbl.gov/~jin M/S 50B-2239 Ph#:(510) 486-7531 Fax: 486-6363 Lawrence Berkeley National Laboratory, Berkeley, CA 94720 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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