Foxconn P4M9007MB-8EKRS2H User Manual
Page 30
Chapter 3 BIOS Description
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Current FSB Frequency
This option is used to show the current frequency of FSB.
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Current DRAM Frequency
This option is used to show the current frequency of DRAM.
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Auto Detect PCI Clk
This option is used to set whether the clock of an unused PCI slot will be
disabled to reduce electromagnetic interference. The setting values are
Disabled and Enabled.
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Spread Spectrum
If you enable spread spectrum, it can significantly reduce the EMI(Electro-
Magnetic Interference) generated by the system. The setting values are Dis-
abled and Enabled.
DRAM Clock/Drive Control Menu
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DRAM Clock
This allows you to control the speed at which the DRAM operates. The
default setting is typically BY SPD. The SPD is the serial presence detect
mechanism of the DIMM.
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DRAM Timing
Selects whether DRAM timing is controlled by the SPD (Serial Presence Detect)
EEPROM on the DRAM module. Setting to “Auto By SPD” enables DRAM tim-
ings to be determined by BIOS based on the configurations on the SPD.
Selecting “Manual” allows users to configure the DRAM timings manually.
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SDRAM CAS Latency [DDR/DDR2]
When synchronous SDRAM is installed, the number of clock cycles of CAS
latency depends on the SDRAM timing.
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