Table of Contents
Advertisement
SDRAM RAS Precharge Delay [3T]
This item controls the idle clocks after issuing a precharge command to
the DDR SDRAM.
SDRAM Active Precharge Delay [5T]
This item controls the number of DDR SDRAM clocks used for DDR
SDRAM parameters.
SDRAM Idle Timer [Infinite]
Configuration options: [Infinite] [0T] [8T] [16T] [64T]
Onboard VGA [Disabled]
This field allows you to enable or disable the onboard VGA feature. Set to
[Enabled] if you wish to use the onboard VGA. Set to [Disabled] if you
installed an AGP device. If you did not install an external AGP device into
the AGP slot, BIOS will enable the onboard VGA regardless of the setting
of this field. Configuration options: [Disabled] [Enabled]
Graphics Aperture Size [128MB]
This feature allows you to select the size of mapped memory for AGP
graphic data. Configuration options: [128MB] [256MB]
Video Memory Cache Mode [UC]
USWC (uncacheable, speculative write combining) is a new cache
technology for the video memory of the processor. It can greatly improve
the display speed by caching the display data. You must set this to UC
(uncacheable) if your display card does not support this feature, otherwise
the system may not boot. Configuration options: [UC] [USWC]
Memory Hole At 15M-16M [Disabled]
This field allows you to reserve an address space for ISA expansion cards.
Setting the address space to a particular setting makes that memory
space unavailable to other system components. Expansion cards can only
access memory up to 16MB. Configuration options: [Disabled] [Enabled]
Delayed Transaction [Disabled]
When set to [Enabled], this feature frees the PCI bus when the CPU is
accessing 8-bit ISA cards. This process normally consumes about 50-60
PCI clocks without PCI delayed transaction. Set this field to [Disabled]
when using ISA cards that are not PCI 2.1 compliant. Configuration
options: [Enabled] [Disabled]
2-22
Chapter 2: BIOS Information
Advertisement
Table of Contents
