3-5
Chapter 3: Troubleshooting
Troubleshooting
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
P4STA
PCI 1 shares an IRQ with PCI 5 and the AGP Pro slot
PCI 2 shares an IRQ with onboard audio and SM bus*
PCI 3 has a dedicated IRQ (does not share)
PCI 4 shares one IRQ with USB
Question: I installed my microphone correctly but I can't record any
sound. What should I do?
Answer: Go to <Start>, <Programs>, <Accessories>, <Entertainment> and
then <Volume Control>. Under the Properties tab, scroll down the list of
devices in the menu and check the box beside "Microphone".
(*System Management Bus)
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