Biostar M7VIT M7VIT BIOS setup guide - Page 27
Resources Controlled By, IRQ Resources, PCI / VGA Palette Snoop
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M7VIT BIOS Setup option is chosen, the system is forced to update ESCDs and then is automatically set to the "Disabled" mode. The above settings will be shown on the screen only if "Manual" is chosen for the resources controlled by function. Legacy is the term, which signifies that a resource is assigned to the ISA Bus and provides non-PnP ISA add-on cards. PCI / ISA PnP signifies that a resource is assigned to the PCI Bus or provides for ISA PnP add-on cards and peripherals. The Choices: Disabled (default), Enabled. Resources Controlled By By Choosing "Auto(ESCD)" (default), the system BIOS will detect the system resources and automatically assign the relative IRQ and DMA channel for each peripheral.By Choosing "Manual", the user will need to assign IRQ & DMA for add-on cards. Be sure that there are no IRQ/DMA and I/O port conflicts. IRQ Resources This submenu will allow you to assign each system interrupt a type, depending on the type of device using the interrupt. When you press the "Press Enter" tag, you will be directed to a submenu that will allow you to configure the system interrupts. This is only configurable when "Resources Controlled By" is set to "Manual". IRQ-3 IRQ-4 IRQ-5 IRQ-7 IRQ-9 IRQ-10 IRQ-11 IRQ-12 IRQ-14 IRQ-15 assigned to assigned to assigned to assigned to assigned to assigned to assigned to assigned to assigned to assigned to PCI Device PCI Device PCI Device PCI Device PCI Device PCI Device PCI Device PCI Device PCI Device PCI Device PCI / VGA Palette Snoop Choose Disabled or Enabled. Some graphic controllers which are not VGA compatible take the output from a VGA controller and map it to their display as a way to provide boot information and VGA compatibility. However, the color information coming from the VGA controller is drawn from the palette table inside the VGA controller to generate the proper colors, and the graphic controller needs to know what is in the palette of the VGA controller. To do this, the non-VGA graphic controller watches for the Write access to the VGA palette and registers the snoop data. In PCI based systems, where the VGA controller is on the PCI bus and a non-VGA graphic controller is on an ISA bus, the Write Access to the palette will not show up on the ISA bus if the PCI VGA controller responds to the Write. 26