ASROCK P4S55FX+ User Manual page 29

USB Controller: Use this to enable or disable the use of USB controller.
USB 2.0 Support: Use this to enable or disable the use of USB 2.0 support.
USB Device Legacy Support: Use this to enable or disable the support to
VDDQ Voltage: Use this to select VDDQ voltage between [1.66V] and [1.57V].
VCCM Voltage: Use this to select VCCM voltage between [2.62V] and [2.55V].
IDE Driving Strength: Select [Normal] or [Strong] for IDE driving strength.
ZCLK/AGP/PCI Frequency mode: If the item CPU Host Frequency is set to
DRAM Access Mode: The default value is [Auto], which will automatically
DRAM CAS Latency: This is used to adjust the means of memory accessing.
DRAM Precharge Time: Use this to select among [Auto], [3T], [2T], [4T], and
DRAM RAS to CAS Delay: Use this to select among [Auto], [3T], [2T], [4T], and
DRAM ACT to Precharge Delay: Use this to select among [Auto], [6T], [7T],
DIMM1, 2 Address/Command Rate: Use this to select among [Auto], [2T],
DIMM3, 4 Address/Command Rate: Use this to select among [Auto], [2T],
DIMM1, 2 FWDSDCLK Delay: Use this to select [Auto] or other values for
DIMM3, 4 FWDSDCLK Delay: Use this to select [Auto] or other values for
2 8
This Manual: http://www.manuallib.com/file/2446253
emulate legacy I/O devices such as mouse, keyboard,... etc.
[Manual], it allows you to set the value for this item. You may set this item to
synchronize with CPU Host Frequency or fix it at 132/66/33 MHz.
select the proper access mode for the system. You may select between
[Single Channel] and [Dual Channel] if you have properly set the dual
channel memory configuration.
Configuration options: [Auto], [2T], [2.5T], [3T]. Please note that not all the
DDR DIMMs can support CAS latency=3T.
[5T] for DRAM Precharge Time <tRP>.
[5T] for DRAM RAS to CAS Delay <tRCD>.
[5T], [4T], [8T] and [9T] for DRAM ACT to Precharge Delay <tRAS>.
and [1T] for DIMM1, 2 Address/Command Rate <MA>.
and [1T] for DIMM3, 4 Address/Command Rate <MA>.
DIMM1, 2 FWDSDCLK delay.
DIMM3, 4 FWDSDCLK delay.