Date: Thu, 10 Feb 2000 02:00:39 +0100 (CET) From: Marc van Woerkom <van.woerkom@netcologne.de> To: freebsd-scsi@freebsd.org Subject: SC200/ncr53c810 problems Message-ID: <200002100100.CAA00993@oranje.my.domain>
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More fun:
As reported earlier on the multimedia list, I have a ASUS SC200 PCI
SCSI controller (ncr53c810) in my system
ncr0: <ncr 53c810 fast10 scsi> irq 11 at device 13.0 on pci0
and an Ensoniq Audio PCI (ES1370) sound card.
pcm0: <AudioPCI ES1370> 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: <SiS 5591 ATA controller> irq 0 at device 1.1 on pci0
ata-pci0: Busmastering DMA not enabled
ata-pci1: <HighPoint HPT366 ATA controller> irq 15 at device 11.0 on pci0
ata-pci1: Busmastering DMA supported
ata2 at 0x6300 irq 15 on ata-pci1
ata-pci2: <HighPoint HPT366 ATA controller> irq 15 at device 11.1 on pci0
ata-pci2: Busmastering DMA supported
to connect an IDE hard disk
ad0: <Maxtor 92732U8/RA530JN0> 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
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