Mainboard K8NF4X–754
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PnP/PCI Configurations
PCI / VGA Palette Snoop
Some graphic controllers that are not VGA compatible take the output from a VGA controller
and map it to their display as a way to provide boot information and VGA compatibility.
Options: Disabled (default), Enabled.
PCI Latency Timer (CLK)
This item allows you to set up the PCI Latency Time (0-255). If you select the “32” it will
optimize PCI speeds. Options: 0-255, 32 (default).
**PCI Express relative items**
Maximum Payload Size
This item allows you to set maximum TLP payload size for the PCI Express devices. The
uinit is byte.
Options: 128, 256, 512, 1024, 2048, 4096(default).
Frequency/Voltage Control
CPU Speed Detected
This item displays the CPU speed information detected by the system.
CPU Host Frequency (MHz)
This item displays the CPU Host frequency. You can set it from 200 to 450. The default
depends on your CPU frequency. The default for this field depends on the CPU installed.
CPU Spread Spectrum
The Spread Spectrum function can reduce the EMI (Electromagnetic Interference) generated.
Options: Enabled (default), Disabled.
DDR Speed (strobe/sec)
This item display the current DDR speed (CPU Host frequency * Max Memclock ÷ 100).
Hammer Fid control
This item displays the CPU ratio information detected by the system.
Options: The options that will be available will depend on the default value of the CPU
installed. For example, if the CPU default value is 10 then the options will be from 4 to 10.
Note: Before you try to make any adjustments to this option, make sure that your CPU
Ratio is adjustable and has not been locked by the CPU manufacturer.
CPU Speed Setting
This item display the CPU speed that you setting for. If you don’t change the “CPU Host
Frequency” or the “CPU Clock Ratio” and the item will display the current CPU speed.
CPU Speed = Current CPU Host Frequency x CPU Clock Ratio,
DDR Speed = Current CPU Host Frequency x (Max Memclock ÷ 100)
