Troubleshooting & Tips; Motherboard Issues - Western Digital WD Serial ATA RAID Controller User Manual

Troubleshooting & Tips
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This section is used to assist with troubleshooting conflicts and WD SATA RAID Controller
installation problems. Also refer to our product support Web site at support.wdc.com.
The section is divided into the following categories:

Motherboard Issues

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System CMOS Issues
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Drive Errors
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Operating System Errors
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Audio/Video Editing Tips.
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Motherboard Issues
Freeing Additional IRQ Resources
Since the WD SATA RAID Controller supports PCI Interrupt sharing, it is possible to use
IRQs already assigned to another PCI card. Interrupt Sharing is not supported with onboard
IDE controllers. If the onboard IDE controller(s) are not used, you may disable the
controllers to free IRQ 14 and/or 15.
Configuring PCI IRQ Resources
Setting the IRQ for a particular PCI slot will be different depending on the motherboard
BIOS. This setting is usually made in the PCI Configuration and/or Plug and Play (PnP)
section of the motherboard BIOS setup. There are three common methods that motherboard
BIOS's handle assignment of IRQs to PCI slots:
Specifically assigning an IRQ to a particular slot - You can tell the motherboard to use IRQ
10 for PCI slot 1, IRQ 11 for PCI slot 2, etc.
Listing which IRQs are available to be assigned to the PCI slots - This BIOS has an
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option where you specify 1st Available IRQ, 2nd Available IRQ, etc. The BIOS then
scans the PCI slots for PCI cards and assigns these IRQs in the order that it finds the PCI
cards.
Consult your motherboard manual for information that is specific to your motherboard.
Intermittent Data Problems
Overclocking the PCI bus may cause the system to hang or data corruption. If you experience
either of these problems and you are overclocking the PCI bus, set the PCI bus back to its
normal setting to see if this is causing the errors.
WD SERIAL ATA RAID CONTROLLER
USER MANUAL
TROUBLESHOOTING & TIPS - 25