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3. Floppy disk drive connector (34-1 pin FLOPPY)
This connector supports the provided floppy drive ribbon cable. After
connecting one end to the motherboard, connect the other end to the
floppy drive. (Pin 5 is removed to prevent incorrect insertion when
using ribbon cables with pin 5 plug).
P4B-FX Floppy Disk Drive Connector
Figure 2-27
4. Fan connectors (3-pin CPUFAN, SYSTEM)
The fan connectors support a CPU fan and a system fan at +12V.
Orient the fans properly to allow air flow to go across the onboard heat
sinks instead of the expansion slots. The fan wiring and plug may vary
depending on the fan manufacturer. Connect the fan cable to the
connector matching the black wire to the ground pin.
Do not forget to connect the fan cables to the fan connectors. Lack of
sufficient air flow within the system may damage the motherboard
components. These are not jumpers! DO NOT place jumper caps on
the fan connectors!
P4B-FX 12-Volt Fan Connectors
Figure 2-28
2-22
P4B-FX
Floppy Disk Drive Connector
P4B-FX
CPU and System Fan Connectors
FLOPPY
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.
PIN 1
CPUFAN
SYSTEM
Chapter 2: Hardware information
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