KX400-8XV V2.0 Series
9
FAN Headers
Three power headers are available for cooling fans, which play an important role in maintaining the
ambient temperature in your system.
Frequency / Voltage Control
This mainboard automatically detects and recognizes the DDR Speed and the CPU Voltage. You can
otherwise override these values using the BIOS Setup Utility.
Configuring using the BIOS Setup Utility
To access the BIOS Setup Utility, reboot your system. During the reboot process you will be given an
opportunity to press the “DEL” key to enter the BIOS Setup Utility.
From the BIOS Setup Utility access the “Advanced” section and then scroll down to the “Frequency /
Voltage Control” field. Adjust the “CPU Host Frequency” , “DDR:CPU Ratio” and “CPU Clock
Ratio” according to the formulas below.
1
Ground
Ground
NC
Ground
+12V
+12V
+12V
Sense
Sense
CPUFAN
AUXFAN
CHASFAN
1
1
1
S oc ke t 4 62
Win bond
W83697HF
LA N
Ch ip
VIA
VT8377A
VIA
VT8235
Ph oe ni x
BI O S
ALC
650
Attention
This system has a BIOS configuration feature that issues a warning
(during POST) when the CPU fan is not plugged in or is not
functioning. In order to make use of this feature. You must make
sure that the CPU power cable is attached specifically to the
“CPUFAN” header. The BIOS configuration option is described in
the “Hardware Monitor” section of the BIOS Setup Utility Chapter.