Gigabyte GA-870-UD3P User Manual page 36

HT Link Frequency
Allows you to manually set the frequency for the HT Link between the CPU and chipset.
Auto BIOS will automatically adjust the HT Link Frequency. (Default)
x1~x10 Sets HT Link Frequency to x1~x10 (200 MHz~2.0 GHz).
Set Memory Clock
Determines whether to manually set the memory clock. Auto lets BIOS automatically set the memory
clock as required. Manual allows the memory clock control item below to be configurable. (Default: Auto)
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.
DRAM Configuration
CMOS Setup Utility-Copyright (C) 1984-2010 Award Software
DCTs Mode
DDR3 Timing Items
x CAS# latency
x RAS to CAS R/W Delay
x Row Precharge Time
x Minimum RAS Active Time
x 1T/2T Command Timing
x TwTr Command Delay
x Trfc0 for DIMM1
x Trfc2 for DIMM2
x Trfc1 for DIMM3
x Trfc3 for DIMM4
x Write Recovery Time
x Precharge Time
x Row Cycle Time
x RAS to RAS Delay
Bank interleaving
Channel interleave
higf: Move Enter: Select
F5: Previous Values
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.
BIOS Setup
DRAM Configuration
[Unganged]
[Auto] SPD Auto
Auto 7T 7T
Auto 7T 7T
Auto 7T 7T
Auto 30T 30T
Auto -- --
Auto 5T 5T
Auto 90ns 90ns
Auto -- --
Auto -- --
Auto -- --
Auto 10T 10T
Auto 5T 5T
Auto 28T 28T
Auto 4T 4T
[Enabled]
[Enabled]
+/-/PU/PD: Value F10: Save
F6: Fail-Safe Defaults
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Item Help
Menu Level 
ESC: Exit F1: General Help
F7: Optimized Defaults