Asus P4B533 - Manual (Page 90)

4-22 Chapter 4: BIOS Setup
SDRAM RAS Precharge Delay [3T]
This item controls the idle clocks after issuing a precharge command to
the DDR SDRAM. It is recommended to keep the default setting for stable
system operation.
SDRAM Active Precharge Delay [6T]
This item controls the number of DDR SDRAM clocks used for DDR
SDRAM parameters. It is recommended to keep the default setting for
stable system operation.
SDRAM Idle Timer [Infinite]
Configuration options: [Infinite] [0T] [8T] [16T] [64T]
CKx16 Strength Control [2.00x]
This item controls the drive strength of the DDR SDRAM clock signal for
an x16 device. It is recommended to keep the default setting for stable
system operation. Configuration options: [0.75x] [1.00x] [1.25x] [1.50x]
[1.75x] [2.00x] [2.25x] [2.50x] [2.75x] [3.00x] [3.25x] [3.50] [3.75x] [4.00x]
CKx8 Strength Control [2.00x]
This item controls the drive strength of the DDR SDRAM clock signal for
an x8 device. It is recommended to keep the default setting for stable
system operation. Configuration options: [0.75x] [1.00x] [1.25x] [1.50x]
[1.75x] [2.00x] [2.25x] [2.50x] [2.75x] [3.00x] [3.25x] [3.50] [3.75x] [4.00x]
DQ DQS Strength Control [2.00x]
This item controls the drive strength of the DDR SDRAM signals DQ and
DQS. It is recommended to keep the default setting for stable system
operation. Configuration options: [0.75x] [1.00x] [1.25x] [1.50x] [1.75x]
[2.00x] [2.25x] [2.50x] [2.75x] [3.00x] [3.25x] [3.50] [3.75x] [4.00x]
Graphics Aperture Size [64MB]
This feature allows you to select the size of mapped memory for AGP
graphic data. Configuration options: [4MB] [8MB] [16MB] [32MB] [64MB]
[128MB] [256MB]