ASROCK 775Twins-HDTV User Manual page 31

Performance Configuration
DRAM Frequency
If [Auto] is selected, the motherboard will detect the memory module
(s) inserted and assigns appropriate frequency automatically. You
may also select other value as operating frequency: [Auto], [Sync with
CPU], [133MHz (DDR 266)], [166MHz (DDR 333)], [200MHz (DDR 400)]. If
DDRII DIMM is inserted to DDRII slot, you may select [Auto], [Sync with CPU],
[200MHz (DDRII 400)], [266MHz (DDRII 533)], [333MHz (DDRII 667)] as oper-
ating frequency.
Overclock DRAM Speed
Use this to select overclock DRAM speed. The default value is [None].
Flexibility Option
The default value of this option is [Disabled]. It will allow better tolerance for
memory compatibility when it is set to [Enabled].
CAS Latency (CL)
Use this item to adjust the latency time for memory accessing. Configura-
tion options for DDR: [Auto], [2.0], [3.0], and [2.5]. Configuration options for
DDRII: [Auto], [3.0], [4.0], and [5.0].The default value is [Auto].
Cycle time (TRAS)
Use this to adjust TRAS values. Configuration options for DDR: [Auto],
[2CLK] to [8CLK]. configuration options for DDRII: [Auto], [2CLK] to [128CLK].
The default value is [Auto].
RAS# to CAS# Delay (TRCD)
This controls the latency between the DRAM active command and the read
/ write command. Configuration options for DDR: [Auto], [2 DRAM Clocks] to
[4 DRAM Clocks]. Configuration options for DDRII: [Auto], [2 DRAM Clocks]
to [15 DRAM Clocks].The default value is [Auto].
RAS# Precharge Time (TRP)
Use this to adjust TRP values. Configuration options for DDR: [Auto], [1CLK],
[2CLK], [3CLK]. Configuration options for DDRII: [Auto], [1CLK] to [15CLK].
The default value is [Auto].
MA Timing
Use this to adjust values for MA timing. Configuration options: [Auto], [2T],
[1T], [1.5T]. The default value is [Auto].
Write to Write Turn Around
Configuration options for DDR: [Auto], [0CLK] to [3CLK]. Configuration op
tions for DDRII: [Auto], [0CLK] to [7CLK]. The default value is [Auto].
Read to Write Turn Around
Configuration options for DDR: [Auto], [0CLK] to [3CLK]. Configuration op
tions for DDRII: [Auto], [0CLK] to [7CLK]. The default value is [Auto].
Write to Read Turn Around
Configuration options for DDR: [Auto], [0CLK] to [3CLK]. Configuration op-
3 1 3 1 3 1
3 1 3 1