Dram configuration, Dcts mode, Ddr3 timing items – GIGABYTE GA-MA790XT-UD4P User Manual
Page 41: Cas# latency, Ras to cas r/w delay, Row precharge time, Minimum ras active time, 1t/2t command timing, Twtr command delay, Trfc0 for dimm1
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BIOS Setup
DRAM Configuration
CMOS Setup Utility-Copyright (C) 1984-2009 Award Software
DRAM Configuration
: Move
Enter: Select
+/-/PU/PD: Value
F10: Save
ESC: Exit
F1: General Help
F5: Previous Values
F6: Fail-Safe Defaults
F7: Optimized Defaults
Item Help
Menu Level
CPU Host Clock Control
[Auto]
x
CPU Frequency (MHz)
200
Set Memory Clock
[Auto]
x
Memory Clock
x6.66
1333Mhz
DCTs Mode
[Unganged]
DDR3 Timing Items
[Auto]
SPD
Auto
x
CAS# latency
Auto
7T
7T
x
RAS to CAS R/W Delay
Auto
7T
7T
x
Row Precharge Time
Auto
7T
7T
x
Minimum RAS Active Time
Auto
20T
20T
x
1T/2T Command Timing
Auto
- -
- -
x
TwTr Command Delay
Auto
5T
5T
x
Trfc0 for DIMM1
Auto
90ns
90ns
x
Trfc2 for DIMM2
Auto
- -
- -
x
Trfc1 for DIMM3
Auto
- -
- -
x
Trfc3 for DIMM4
Auto
- -
- -
x
Write Recovery Time
Auto
10T
10T
x
Precharge Time
Auto
5T
5T
x
Row Cycle Time
Auto
28T
28T
x
RAS to RAS Delay
Auto
4T
4T
CPU Host Clock Control, CPU Frequency (MHz), Set Memory Clock, Memory Clock
The settings under the four items above are synchronous to those under the same items in the
MB Intelligent Tweaker(M.I.T.).
DCTs Mode
Allows you to set memory control mode.
Ganged
Sets memory control mode to single dual-channel.
Unganged
Sets memory control mode to two single-channel.(Default)
DDR3 Timing Items
Manual allows all DDR3 Timing items below to be configurable.
Options are: Auto (default), Manual.
CAS# latency
Options are: Auto (default), 4T~12T.
RAS to CAS R/W Delay
Options are: Auto (default), 5T~12T.
Row Precharge Time
Options are: Auto (default), 5T~12T.
Minimum RAS Active Time
Options are: Auto (default), 15T~30T.
1T/2T Command Timing
Options are: 1T (default), 2T.
TwTr Command Delay
Options are: Auto (default), 4T~7T.
Trfc0 for DIMM1
Options are: 90ns (default), 110ns, 160ns, 300ns, 350ns.
Memory Clock
This option is configurable only when Set Memory Clock is set to Manual.
x4.00
Sets Memory Clock to x4.00.
x5.33
Sets Memory Clock to x5.33.
x6.66
Sets Memory Clock to x6.66.
x8.00
Sets Memory Clock to x8.00.