Frequency / voltage control, Fan headers, Chasfan – Albatron Technology PX845PEV-800 User Manual
Page 12: Cpufan, Auxfan
Albatron Anniversary Special Edition PX845PEV-800
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So cke t 478
Intel
82801DB
U6
U17
BAT1
JP1
CASE OPEN
SPEAKER
SW/LED
USB2
USB3
CHASFAN
Phoenix
Bios
KB/MS
USB/LAN
PRT/COM
IrDA
CPUFAN
PCI3
PCI5
LAN
CHIP
PCI4
Intel
82845PE
U10
AGP
AUXFAN
PCI2
DI
M
M
1
AT
X
_P
W
R
DI
M
M
2
DI
M
M
3
FDC
IDE1
IDE2
PCI1
ATX_12V
Winbond
W83627HF
Ground
Ground
Ground
+12V
+12V
+12V
Sense
Sense
Sense
CPUFAN
AUXFAN
CHASFAN
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 CPU ratio. You can otherwise
override these values using the BIOS Setup Utility.
Configuring the CPU Host Frequency by 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” and “DDR:CPU
Ratio” according to the formulas below.
Warning
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 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.