MSI X58 Pro-E seres - Page 65

BIOS Setup ▍
MS-7522
3-23
BIOS Setup ▍
MS-7522
CPU Clock Drve/ PCI Express Clock Drve
These tems are used to select the CPU/ PCI Express clock ampltude.
CPU CLK Skew/ MCH CLK Skew
These tems are used to select the CPU/ North Brdge chpset clock skew. They can
help CPU to reach the hgher overclockng performace.
Adjust PCI Frequency (MHz)
Ths 󰘰eld allows you to select the PCI frequency (n MHz).
Adjust PCI-E Frequency (MHz)
Ths 󰘰eld allows you to select the PCIE frequency (n MHz).
Auto Dsable DRAM/PCI Frequency
When set to [Enabled], the system wll remove (turn o󰘯) clocks from empty DIMM and
PCI slots to mnmze the electromagnetc nterference (EMI).
CPU Voltage (V)/ CPU Vcore/ CPU PLL Voltage (V)/ QPI Voltate (V))/ DRAM Volt-
age (V)/ DDR_VREF_CA_A (V)/ DDR_VREF_CA_B (V)/ DDR_VREF_CA_C (V)/ DDR_
VREF_DQ_A (V)/DDR_VREF_DQ_B (V), DDR_VREF_DQ_C (V)/ NB Voltage (V)/ ICH
Voltage (V)
These tems are used to asjust the voltage of CPU, Memory, QPI and chpset.
For CPU Voltage:
The value here s the o󰘯set for you to adjust/add based on the current CPU voltage.
Please read the real-tme CPU voltage n “CPU Vcore” n the “H/W montor” page. Please
note the based CPU Voltage wll vary dependng on the d󰘯erent CPU you nstall.
For QPI Voltage:
The value here s the o󰘯set for you to adjust/add based on the current QPI voltage. The
default based QPI Voltage s from 1.1V to 1.22V, and t wll vary dependng on the d󰘯er
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ent CPU you nstall. You can read the QPI voltage n GreenPower Center.
For DRAM Voltage:
Accordng to the Inte CPU spec, DRAM Voltage settng 1.65V may damage the CPU
permanently. It s strongly recommended that you nstall the DRAM wth the voltage set
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tng below 1.65V. You can read the DRAM voltage n GreenPower Center.
Spread Spectrum
When the manboard’s clock generator pulses, the extreme values (spkes) of the pulses
create EMI (Electromagnetc Interference). The Spread Spectrum functon reduces the
EMI generated by modulatng the pulses so that the spkes of the pulses are reduced to
󰘱atter curves. If you do not have any EMI problem, leave the settng at Dsabled for opt
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mal system stablty and performance. But f you are plagued by EMI, set to Enabled for
EMI reducton. Remember to dsable Spread Spectrum f you are overclockng because
even a slght jtter can ntroduce a temporary boost n clock speed whch may just cause
your overclocked processor to lock up.
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