Asrock 775twins-hdtv r2.0 用户手册
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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.
(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].
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].
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].
[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].
/ 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].
BIOS SETUP UTILITY
v02.54 (C) Copyright 1985-2005, American Megatrends, Inc.
Chipset Configuration
Select Screen
Select Item
Select Item
+ -
Change Option
F1
General Help
F10
Save and Exit
ESC
Exit
F9
Load Defaults
Advanced
WARNING: Setting wrong values in below actions
may cause system to malfunction.
Performance Configuration
NorthBridge Configuration
NorthBridge Configuration
SouthBridge Configuration
Thermal Throttling Duty Cycle
[Auto]
Thermal Throttling Temperature
[Auto]
To select the
Temperature to
generate the thermal
override event.
Temperature to
generate the thermal
override event.
3.3.2
3.3.2
3.3.2
3.3.2
3.3.2 Chipset Configuration
Chipset Configuration
Chipset Configuration
Chipset Configuration
Chipset Configuration