Asus X900-PI4 User Manual download pdf (Page 33)

ASUS P4T User’s Manual 33

3. HARDWARE SETUP

Connectors

3. H/W SETUP

8) Floppy Disk Drive Connector (34-1pin FLOPPY)

This connector supports the provided floppy drive ribbon cable. After connect-

ing the single end to the board, connect the two plugs on the other end to the

floppy drives. (Pin 5 is removed to prevent inserting in the wrong orienta-

tion when using ribbon cables with pin 5 plugged).

P4T

NOTE: Orient the red markings on

the floppy ribbon cable to PIN 1.

P4T Floppy Disk Drive Connector

PIN 1

FLOPPY

9) Chassis (PCI_FAN), CPU (CPU_FAN), Power Supply (MAIN_FAN) Fan

Connectors (3 pins)

These connectors support cooling fans of 350mA (4.2 Watts) or less. Orientate

the fans so that the heat sink fins allow airflow to go across the onboard heat

sink(s) instead of the expansion slots. Depending on the fan manufacturer, the

wiring and plug may be different. The red wire should be positive, while the

black should be ground. Connect the fan’s plug to the board taking into consid-

eration the polarity of the connector.

NOTE: The “Rotation” signal is to be used only by a specially designed fan with

rotation signal. The Rotations per Minute (RPM) can monitored using a utility such

as ASUS PC Probe or Intel LDCM.

WARNING! The CPU and/or motherboard will overheat if there is no airflow

across the CPU and onboard heatsinks. Damage may occur to the motherboard

and/or the CPU fan if these pins are incorrectly used. These are not jumpers,

do not place jumper caps over these pins.

P4T

P4T 12-Volt Cooling Fan Power

MAIN_FAN

CPU_FAN

GND

Rotation

+12V

PCI_FAN

GND

Rotation

+12V

GND

Rotation

+12V

(for power supply fan)

(for chassis fan)

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Asus X900-PI4 User Manual Page 33

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