Справочник Пользователя для Intel 9EJL4

Chapter 3 

This section provides IRQ and DMA setting information. By choosing the PNP/PCI 

Configuration option from the CMOS Setup Utility menu (Figure 3-1), the screen 

below displays the manufacturer's default values for the motherboard. 

 

Default is [Disabled]. Select Enabled to reset Extended System Configuration Data 

(ESCD) if you have installed a new add-on and the system reconfiguration has 

caused such a serious conflict that the OS cannot boot. 

When set to Manual the system BIOS will not refer to ESCD for IRQ & DMA 

information. Instead, it will refer to the items in the setup menu for assigning IRQ & 

DMA. When set to Auto the system BIOS will refer to ESCD for all legacy 

information. ESCD (Extended System Configuration Data) provides a detailed 

format of the configuration data structures stored in flash memory. Each data 

structure defines the resources used by a device or a card in the system. This 

includes legacy and PCI/ISA PnP devices. 

When set to [Enabled], multiple VGA devices operating on different buses can 

handle data from CPU to each set of palette registers of every video device. Bit 5 of 

the command register in the PCI device configuration space is the VGA Palette 

Snoop bit (0 is disabled). Available options are [Enabled] and [Disabled]. 

This function allows user to choose if the FDD IRQ can be freed up. The default 

setting is [Yes] and this does not allow the IRQ to be free. 

 

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