American Megatrends MAN-772 manual DMA Channel, Option Optimal Default Fail-Safe Default

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PCI/PnP Setup, Continued

IRQ3

IRQ4

IRQ5

IRQ7

IRQ9

IRQ10

IRQ11

IRQ12

IRQ14

IRQ15

These options specify the bus that the specified IRQ line is used on. These options allow you to reserve IRQs for legacy ISA adapter cards. These options determine if AMIBIOS should remove an IRQ from the pool of available IRQs passed to devices that are configurable by the system BIOS. The available IRQ pool is determined by reading the ESCD NVRAM. If more IRQs must be removed from the pool, the end user can use these options to reserve the IRQ by assigning an ISA setting to it. Onboard I/O is configured by AMIBIOS. All IRQs used by onboard I/O are configured as PCI, PnP, or PCI/PnP. IRQ14 and 15 will not be available if the onboard Triton 2 PCI IDE is enabled. If all IRQs are set to ISA and IRQ14 and 15 are allocated to the onboard PCI IDE, IRQ9 will still be available for PCI and PnP devices, because at least one IRQ must be available for PCI and PnP devices. The settings are ISA, PnP, PCI/PnP, or PCI. The Optimal and Fail-Safe default settings are:

 

Option

Optimal Default

Fail-Safe Default

 

 

IRQ3

PnP

PCI/PnP

 

 

IRQ4

PnP

PCI/PnP

 

 

IRQ5

PCI/PnP

PCI/PnP

 

 

IRQ7

PnP

PCI/PnP

 

 

IRQ9

PCI/PnP

PCI/PnP

 

 

IRQ10

PCI/PnP

PCI/PnP

 

 

IRQ11

PCI/PnP

PCI/PnP

 

 

IRQ12

PnP

PnP

 

 

IRQ14

PCI/PnP

PCI/PnP

 

 

IRQ5

PCI/PnP

PCI/PnP

 

 

 

 

 

 

DMA Channel 0

DMA Channel 1

DMA Channel 3

DMA Channel 5

DMA Channel 6

DMA Channel 7 These options allow you to specify the bus type used by each DMA channel. The settings are PnP or ISA. The Optimal and Fail-Safe default settings are PnP.

Reserved ISA Card Memory Size This option specifies the size of the memory area reserved for legacy ISA adapter cards. The settings are Disabled, 16K, 32K, or 64K. The Optimal and Fail-Safe default settings are Disabled.

Reserved ISA Card Memory Address This option specifies the beginning address (in hex) of the reserved memory area. The specified ROM memory area is reserved for use by legacy ISA adapter cards.

The settings are C0000, C4000, C8000, CC000, D0000, D4000, D8000, or DC000. The Optimal and Fail-Safe default settings are C4000.

56Apollo IV PCI Pentium ISA Motherboard User’s Guide

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Contents Apollo IV Pentium PCI ISA MotherboardGuide Ii Apollo IV PCI Pentium ISA Motherboard User’s Guide Phone Number Characteristics PrefaceTechnical Support Packing List Static ElectricityOverview CPU Manufacturer Supported CPU SpeedsChipset Type of System Supported System Memory Socket Overview Fast ATA Ultra DMA/33Floppy Parallel PortMouse CPU External Clock Frequency PCI Expansion Slot FrequencyDMI InfraredApollo IV Dimensions Motherboard Height RestrictionsInstallation Steps Step ActionApollo IV Motherboard Layout Unpack the Motherboard Step ActionPWR1 Setting Description Set JumpersAvoid Static Electricity Flash ROM TypeConfigure CPU ExternalFor P54C P55CSummary of Jumper Setting for Intel Pentium CPUs P54CSummary of Jumper Setting for AMD K5 and K6 CPUs Value Description AMD-K6 Step Action Install Memory Supported System Memory ConfigurationsType of System Memory Supported System Memory Socket Total SystemMemory Display Install the Motherboard Should supply these partsInstall Motherboard Connector Attach CablesAttach Cables Power Connector Pinout Pin DescriptionMotherboard PinPin Description Pins 12 13 14 Connector Signal DescriptionsPin Description Signal Description Connect Onboard I/OPin Signal Description SLCTIN#Attach Floppy Drive Floppy Connector Pinout Twist in Floppy CablePin Use Attach IDE Drive Attach IDE Drive Primary Pinout The Primary IDE pinout is Secondary IDE Pinout The Secondary pinout is Test and Configure Page Winbios Setup Using a Mouse with Winbios Setup Using the Keyboard with Winbios SetupKeystroke Action Winbios Setup Menu Standard Setup Drive Type How to ConfigureParameter Description Hard Disk Drive Types 65535 1223 152 MBAdvanced Setup Setting DescriptionAdvanced Setup Type of Armd Device Drive Emulation Configured Advanced Setup Disabled Chipset Setup Power Management Setup Power Management Setup PCI/PnP Setup Cont’dSnoop Bit Action Option Optimal Default Fail-Safe Default DMA ChannelPeripheral Setup Primary PrefetchIDE Secondary IRQ options Offboard PCI IDE Primary IRQPeripheral Setup Setting Description EPP VersionAmibios Password Support SecuritySetting a Password Changing a PasswordAnti-Virus Utility Original OptimalFail-Safe Programming the Flash ROM Programming the Flash EpromProgramming the Flash ROM Step Expected behaviorNumber of Beeps Description Bootblock Code Checkpoint Codes Code Description
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