Asus CUSL2-M SETUP BIOS, Onboard VGA [Enabled], SDRAM RAS to CAS Delay, Display Cache [Enabled], SDRAM RAS Precharge Time, CPU Latency Timer [Enabled]

SETUP BIOS .4

Configuration Chip

4. BIOS SETUP

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 parameters 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. Configuration 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 configuration fields. Configuration options: [Enabled] [Disabled]

Display Cache CAS Latency (DCCAS) [2T]

Configuration options: [2T] [3T]

62 ASUS CUSL2 User’s Manual