Product manual

MISC CONNECTORS

JP5 FAN CONNECTOR

JP5 provides the power and control for the standard 4 wire heat sink mounted fan.

Pin 1, square pad, GND (BLACK)

Pin 2 +12V (YELLOW)

Pin 3 Sense Pulse output from fan, pulse rate indicated speed. (GREEN)

Pin 4 Control PWM output to fan, sets speed (BLUE)

INTA and Ground Turrets

The two ground turrets, P1 and P2, provide a convenient place to attach scope or voltmeter grounds. The

INTA single pin header, JP10, provides probing for the PCI interrupt A line.

Figure 12 GND and INTA connections