MSI H55M-E32 series - Page 58

3-22
BIOS Setup
MS-7636
Chapter 3
BIOS Setup
MS-7636
Chapter 3
CH1/ CH2 tRTP
Tme nterval between a read and a precharge command.
CH1/ CH2 tFAW
Ths tem s used to set the tFAW tmng.
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.
Auto Dsable PCI Frequency
When set to [Enabled], the system wll remove (turn o󰘯) clocks from empty PCI slots to
mnmze the electromagnetc nterference (EMI).
DRAM Voltage (V)
These tems are used to adjust the voltage of Memory.
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.
The greater the Spread Spectrum value s, the greater the EMI s reduced, and the
system wll become less stable. For the most sutable Spread Spectrum value, please
consult your local EMI regulat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 over
-
clocked processor to lock up.
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