User`s manual

- 37 - BIOS Setup
CPU Frequency(MHz)
Allows you to manually set the CPU host frequency. This option is congurable only when CPU Host
Clock Control is set to Manual. Important It is highly recommended that the CPU frequency be set in
accordance with the CPU specications.
PCIe Spread Spectrum
Enables or disables PCIe Spread Spectrum. (Default: Disabled)
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 congurable. (Default: Auto)
Memory Clock
This option is congurable only when Set Memory Clock is set to Manual.
X5.33 Sets Memory Clock to X5.33.
X6.66 Sets Memory Clock to X6.66.
X8.00 Sets Memory Clock to X8.00.
X9.33 Sets Memory Clock to X9.33.
DRAM Conguration
CMOS Setup Utility-Copyright (C) 1984-2011 Award Software
DRAMConguration
 DDR3TimingItems  [Auto]SPDAuto
x 1T/2T Command Timing Auto -- --
x CAS# latency Auto 9T 9T
x RAS to CAS R/W Delay Auto 9T 9T
x Row Precharge Time Auto 9T 9T
x Minimum RAS Active Time Auto 24T 24T
x TwTr Command Delay Auto 5T 5T
x Trfc0 for DIMM1, DIMM3 Auto 110ns 110ns
x Trfc1 for DIMM2, DIMM4 Auto -- --
x Write Recovery Time Auto 10T 10T
x Precharge Time Auto 5T 5T
x Row Cycle Time Auto 33T 33T
x RAS to RAS Delay Auto 4T 4T
x Four Bank Activate Window Auto -- --
 BankInterleaving  [Enabled]
higf
: 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

DDR3 Timing Items
Manual allows all DDR3 Timing items below to be congurable.
Options are: Auto (default), Manual.
1T/2T Command Timing
Options are: Auto (default), 1T, 2T.
CAS# latency
Options are: Auto (default), 5T~14T.
RAS to CAS R/W Delay
Options are: Auto (default), 5T~14T.
Row Precharge Time
Options are: Auto (default), 2T~14T.