ECS HDC-I, Manual, Page: 39 / 52

35
Using BIOS
This page enables you to set the clock speed and system bus for your system. The
clock speed and system bus are determined by the kind of processor you have
installed in your system.
Frequency/Voltage Control Menu
Memory Clock (Auto)
This item is used to set the memory clock.
Memory Clock [Auto]
Memory Mode [Auto]
CAS# Latency (tCL) 8 CLK
RAS# to CAS# Delay (tRCD) 8 CLK
Row Precharge Time 8 CLK
RAS# Active Time (tRAS) 20 CLK
Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc.
This Option Allows User to
select different Memory Clock.
Default value is 400Mhz.
Main Advanced Chipset Frequency/Voltage Control Boot Security Save & Exit
Version 2.10.1208. Copyright (C) 2010, American Megatrends, Inc.
+/- : Change Opt.
:Select Screen
:Select Item
F1:General Help
F2:Previous Values
F3:Optimized Defaults
F4:Save & Exit
ESC:Exit
Enter : Select
Row Precharge Time(tRP) (8CLK)
This item specifies Row precharge to Active or Auto-Refresh of the same bank.
RAS# to CAS# Delay(tRCD) (8CLK)
This item specifies the RAS# to CAS# delay to Rd/Wr command to the same bank.
RAS# Active Time(tRAS) (20CLK)
This item specifies the RAS# active time.
CAS# Latency (tCL) (8CLK)
This item determines the operation of DDR SDRAM memory CAS (colulmn address
strobe). It is recommanded that you leave this item at the default values. The 2T
setting requires faster memory that specifically supports this mode.
Memory Mode (Auto)
This item is used to set the memory mode.