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Frequency / voltage control, Fan headers, Chasfan – Albatron Technology PX845PEV-800 User Manual

Page 12: Cpufan, Auxfan

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Albatron Anniversary Special Edition PX845PEV-800

9

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.