MSI P55-GD55 Series - Page 65

BIOS Setup ▍
MS-7589
3-23
BIOS Setup ▍
MS-7589
Current CH1/ CH2 tdrRdTRd/ tddRdTRd/ tsrRdTWr/ tdrRdTWr/ tddRdTWr/
tsrWrTRd/ tddWrTWr/ tsrRDTRd/ tsrWrTWr
These tem show the advanced DRAM tmngs.
Channel 1/ Channel2 Advanced Memory Settng
Settng to [Auto] enables the advance memory tmng automatcally to be determned
by BIOS. Settng to [Manual] allows you to set the followng advanced memory tm
-
ngs.
Memory Rato
Ths tem allows you to set the memory multpler.
Adjusted DRAM Frequency (MHz)
It shows the adjusted DRAM frequency. Read-only.
QPI Rato
Ths tem allows you to set the QPI multpler.
Adjusted QPI Frequency (MHz)
It shows the adjusted QPI frequency. Read-only.
ClockGen Tuner
Press <Enter> to enter the sub-menu and the followng screen appears.
CPU Ampltude Control/ PCI Express Ampltude Control
These tems are used to select the CPU/ PCI Express clock ampltude.
Adjust PCI-E Frequency (MHz)
Ths 󰘰eld allows you to select the PCIE frequency (n MHz).
Auto Dsable PCI Frequency
When set to [Enabled], the system wll remove (turn o󰘯) clocks from empty PCI slot to
mnmze the electromagnetc nterference (EMI).
CPU Voltage(V)/ PCH 1.8V (V)/ DRAM Voltage (V)/ DDR_VREF_CA_A (V)/ / DDR_
VREF_CA_B (V)/ DDR_VREF_DA_A (V)/ / DDR_VREF_DA_B (V)/ PCH 1.05V (V)
These tems are used to adjust the voltage of CPU, Memory and chpset.
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.
Important
If you do not have any EMI problem, leave the settng at [Dsabled] for optmal system
stablty and performance. But f you are plagued by EMI, select the value of Spread
Spectrum for EMI reducton.
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