Asus CUSL2-LS - Manual (Page 62)

ASUS CUSL2 User’s Manual 62
4. BIOS SETUP
4. BIOS SETUP
Chip Configuration
SDRAM RAS to CAS Delay
This controls the latency between the SDRAM active command and the
read/write command.
SDRAM RAS Precharge Time
This controls the idle clocks after issuing a precharge command to the
SDRAM.
SDRAM Cycle Time (Tras, Trc) [6T, 8T]
This feature controls the number of SDRAM clocks used for SDRAM pa-
rameters Tras and Trc. Tras specifies the minimum clocks required between
active command and precharge command. Trc specifies the minimum clocks
required between active command and re-active command. Configuration
options: [5T, 7T] [6T, 8T]
SDRAM Page Closing Policy [One Bank]
This feature controls that after a page miss whether the Graphics and Memory
Controller Hub (GMCH) will issue “precharge only the bank” or “precharge
all” command to a specific opened SDRAM bank. Configuration options:
[One Bank] [All Banks]
CPU Latency Timer [Enabled]
This controls the GMCH’s response to CPU deferrable cycles. Configura-
tion options: [Disabled] [Enabled]
Command Per Cycle [Enabled]
When onboard VGA is used, CPU can help to gain graphics performance by
increasing proper SDRAM cycles combinations. Configuration options: [En-
abled] [Disabled]
Onboard VGA [Enabled]
Leave on default setting if you want to use the onboard VGA. Select [Dis-
abled] if you want to use an add-on AGP or PCI VGA card. Configuration
options: [Disabled] [Enabled]
NOTE: The following 6 fields will only be displayed when the AGP Inline
Memory Module (AIMM) is used and Onboard VGA is set to [Enabled].
Display Cache [Enabled]
This field must be enabled to see the other Display Cache related con-
figuration fields. Configuration options: [Enabled] [Disabled]
Display Cache CAS Latency (DCCAS) [2T]
Configuration options: [2T] [3T]