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3
BIOS Setup
200 MHz
The
memory clock speed will run at 400MHz
DDR.
DRAM Timing
This field is used to select the timing of the DRAM.
By SPD
The EEPROM on a DIMM has SPD (Serial Pres-
ence Detect) data structure that stores informa-
tion about the module such as the memory
type, memory size, memory speed, etc. When
this option is selected, the system will run ac-
cording to the information in the EEPROM. This
option is the default setting because it provides
the most stable condition for the system.
Turbo
If you want the system to run at a speed faster
than “By SPD”, select this option.
However, com-
patibility problems may occur with some
DRAMs. If you encounter any problems, set this
field to “By SPD” or “Manual”.
Ultra
If you want the system to run at a speed faster
than “Turbo”, select this option.
However, com-
patibility problems may occur with some
DRAMs. If you encounter any problems, set this
field to “By SPD” or “Manual”.
Manual
This option allows you to manually select the
options in the “DRAM CAS Latency” to “Active
to CMD (Trcd)” fields. The system will run ac-
cording to the settings in these fields.
DRAM CAS Latency
This field is used to select the clock cycle of the SDRAM CAS
latency time. The option selected specifies the time before
SDRAM starts a read command after receiving it.
Bank Interleave
The options are Enabled and Disabled.
Precharge to Active (Trp)
The options are 2T, 3T, 4T and 5T.