From owner-freebsd-scsi Wed Feb 9 17: 3: 1 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from mail2.netcologne.de (mail2.netcologne.de [194.8.194.103]) by builder.freebsd.org (Postfix) with ESMTP id 9E3824290; Wed, 9 Feb 2000 17:02:56 -0800 (PST) Received: from oranje.my.domain (dial3-130.netcologne.de [195.14.250.130]) by mail2.netcologne.de (8.9.3/8.9.3) with ESMTP id CAA04014; Thu, 10 Feb 2000 02:02:29 +0100 (MET) Received: (from marc@localhost) by oranje.my.domain (8.9.3/8.9.3) id CAA00993; Thu, 10 Feb 2000 02:00:39 +0100 (CET) (envelope-from van.woerkom@netcologne.de) Date: Thu, 10 Feb 2000 02:00:39 +0100 (CET) Message-Id: <200002100100.CAA00993@oranje.my.domain> X-Authentication-Warning: oranje.my.domain: marc set sender to van.woerkom@netcologne.de using -f From: Marc van Woerkom To: freebsd-scsi@freebsd.org Subject: SC200/ncr53c810 problems Reply-To: van.woerkom@netcologne.de Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org More fun: As reported earlier on the multimedia list, I have a ASUS SC200 PCI SCSI controller (ncr53c810) in my system ncr0: irq 11 at device 13.0 on pci0 and an Ensoniq Audio PCI (ES1370) sound card. pcm0: irq 10 at device 15.0 on pci0 The problem was, that heavy activity on the hard disks plus activity on the soundcard at the same time resulted in the ncr going nuts (activity LED stays on) and thus the system to hang sooner or later. So far I believed the ES1370 driver was the culprit. However two weeks ago, I bought an ABIT Hot Rod Ultra DMA 66 IDE controler ata-pci0: irq 0 at device 1.1 on pci0 ata-pci0: Busmastering DMA not enabled ata-pci1: irq 15 at device 11.0 on pci0 ata-pci1: Busmastering DMA supported ata2 at 0x6300 irq 15 on ata-pci1 ata-pci2: irq 15 at device 11.1 on pci0 ata-pci2: Busmastering DMA supported to connect an IDE hard disk ad0: ATA-5 disk at ata2 as master ad0: 26059MB (53369568 sectors), 52946 cyls, 16 heads, 63 S/T, 512 B/S ad0: 16 secs/int, 1 depth queue, UDMA66 to my system. Now I have a similiar effect: Heavy use of a SCSI disk plus heavy use of the IDE disk (e.g. copy the SCSI disk to the IDE disk) results in a hang up of the ncr controller. Now I believe the SC200 card sucks for some unknown reason. Thus I am considering buying a new SCSI controller (either a DAWICONTROL DC2976UW (SYM53C875) or a NCR 8951 based one. Before I waste the money I would like to ask for help on how to exclude other causes. - Is it possible to have unlucky BIOS settings that could cause that behaviour? - I have one 66 MHz 64 MB SIMM and two 100MHz 64 MB SIMMS in a motherboard that has only tag RAM for 128 MB (Gigaybyte S2) could this lead to memory timing problems? Regards, Marc To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message