![ASROCK P4S55FX2 Скачать руководство пользователя страница 24](http://html1.mh-extra.com/html/asrock/p4s55fx2/p4s55fx2_user-manual_2986309024.webp)
2 4
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
emulate legacy I/O devices such as mouse, keyboard,... etc.
VDDQ Voltage:
Use this to select VDDQ voltage between [1.57V] and [1.66V].
VCCM Voltage:
Use this to select VCCM voltage between [2.55V] , [2.64V],
[2.71V] and [2.78V]
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
[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.
DRAM Access Mode:
The default value is [Auto], which will automatically
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.
DRAM CAS Latency:
This is used to adjust the means of memory accessing.
Configuration options: [Auto], [2T], [2.5T], [3T]. Please note that not all the
DDR DIMMs can support CAS latency=3T.
DRAM Precharge Time:
Use this to select among [Auto], [3T], [2T], [4T], and
[5T] for DRAM Precharge Time <tRP>.
DRAM RAS to CAS Delay:
Use this to select among [Auto], [3T], [2T], [4T], and
[5T] for DRAM RAS to CAS Delay <tRCD>.
DRAM ACT to Precharge Delay:
Use this to select among [Auto], [6T], [7T],
[5T], [4T], [8T] and [9T] for DRAM ACT to Precharge Delay <tRAS>.
DIMM1, 2 Address/Command Rate:
Use this to select among [Auto], [2T],
and [1T] for DIMM1, 2 Address/Command Rate <MA>.
DIMM1, 2 FWDSDCLK Delay:
Use this to select [Auto] or other values for
DIMM1, 2 FWDSDCLK delay.
DDR IO Input Termination:
Use this to adjust chipset DDR interface termination
strength.