"Steven N. Hirsch" wrote:
> Jeff,
> Do you have the mtrr registers set to something besides the default?
> Sometimes video boards are shuffled around in the memory map, and
> write-gathering doesn't work very well when it's over the AIC PCI
> registers. Just a long shot, but it caused similar symptoms here until I
> chased it down.
> Steve
Didn't change anything. I suppose there could be some conflict with the
graphics card, but from my non-expert view I don't see a conflict (see
the cat /proc/pci output below).
The last thing I've thought about with this problem has been on
acceptable voltage and temperature tolerances, but I haven't found any
guidelines and the system ran with no problems for a year before adding
SCSI. The hardware monitor reports:
Setting Actual
------- ------
3.3v 3.4 to 3.5
+12v 11.9 to 12.0
-12v -11.5 to -11.6
-5v -4.8 to -4.9
CPU running at 120 to 123 degrees (Farenheit)
Cabinet: 80 degrees Farenheit
While I don't have a temperature reading for the drives, I do have drive
fans for them, so I expect they're okay.
Thanks for the suggestion though.
Regards,
Jeff Hill
-------------------------------------
apache:/home/jhill# cat /proc/pci
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Intel 440BX - 82443BX Host (rev 3).
Medium devsel. Master Capable. Latency=64.
Prefetchable 32 bit memory at 0xe4000000 [0xe4000008].
Bus 0, device 1, function 0:
PCI bridge: Intel 440BX - 82443BX AGP (rev 3).
Medium devsel. Master Capable. Latency=64. Min Gnt=128.
Bus 0, device 4, function 0:
ISA bridge: Intel 82371AB PIIX4 ISA (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No
bursts.
Bus 0, device 4, function 1:
IDE interface: Intel 82371AB PIIX4 IDE (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable.
Latency=32.
I/O at 0xd800 [0xd801].
Bus 0, device 4, function 2:
USB Controller: Intel 82371AB PIIX4 USB (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable.
Latency=32.
I/O at 0xd400 [0xd401].
Bus 0, device 4, function 3:
Bridge: Intel 82371AB PIIX4 ACPI (rev 2).
Medium devsel. Fast back-to-back capable.
Bus 0, device 10, function 0:
VGA compatible controller: ATI Mach64 GT (Rage II) (rev 154).
Medium devsel. Fast back-to-back capable. IRQ 10. Master
Capable. Latency=32. Min Gnt=8.
Non-prefetchable 32 bit memory at 0xe2000000 [0xe2000000].
I/O at 0xd000 [0xd001].
Non-prefetchable 32 bit memory at 0xe1800000 [0xe1800000].
Bus 0, device 12, function 0:
SCSI storage controller: Adaptec AHA-2940U2 (rev 0).
Medium devsel. Fast back-to-back capable. BIST capable. IRQ
11. Master Capable. Latency=32. Min Gnt=39.Max Lat=25.
I/O at 0xb800 [0xb801].
Non-prefetchable 64 bit memory at 0xe1000000 [0xe1000004].
--
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