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Chapter 3: Troubleshooting
Question: Do I need the CD that came with your motherboard?
Answer: The supplied compact disc has quite a few drivers and programs
that will greatly enhance your system. We recommend that you review the
CD and install the applications you need. Applications included on the CD
are 820 chipset drivers for Windows9x, audio drivers and Super Doctor
Monitoring software.
Question: Why can't I turn off the power using the momentary
power on/off switch?
Answer: The instant power off function is controlled in BIOS by the Power
Button Mode setting (see page 4-11). When the On/Off feature is enabled,
the motherboard will have instant off capabilities as long as the BIOS has
control of the system. When the Standby or Suspend feature is enabled or
when the BIOS is not in control such as during memory count (the first
screen that appears when the system is turned on), the momentary on/off
switch must be held for more than four seconds to shut down the system.
This feature is required to implement the ACPI features on the motherboard.
Question: I see some of my PCI devices sharing IRQs, but the sys-
tem seems to be fine.
Is this correct or not?
Answer: Some PCI Bus Mastering devices can share IRQs without perfor-
mance penalties. These devices are designed to work correctly while shar-
ing IRQs. See Table 3-1 below for details on shared IRQs.
Table 3-1.
Shared IRQs
PIIISCA/PIIISCD/PIIISCE/370SCI/370SCD
PCI 1, PCI 5 & AGP share 1 IRQ
PCI 2 shares an IRQ with the AMR/onboard audio and the SM bus*
PCI 3 does not share an IRQ (dedicated IRQ)
PCI 4 shares an IRQ with the USB
370SC3
PCI 1, PCI 5 & AGP share 1 IRQ
PCI 2 shares an IRQ with the AMR/onboard audio and the SM bus*
PCI 3 shares an IRQ with the onboard SCSI
PCI 4 shares an IRQ with the USB
*System Management bus
3-5
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