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6-2
Control Panel
The control panel (located on the front of the chassis) must be connected to the
JF1 connector on the motherboard to provide you with system control buttons and
status indicators. These wires have been bundled together in a ribbon cable to
simplify the connection. Connect the cable from JF1 on the motherboard to JP4
on the Control Panel PCB (printed circuit board). Make sure the red wire plugs
into pin 1 on both JF1 and JP4. Pull all excess cabling out of the airfl ow path. The
LEDs inform you of system status. See Chapter 3 for details on the LEDs and the
control panel buttons. Details on JF1 can be found in Chapter 5.
6-3
System Fans
Both systems use 4-cm counter-rotating fans to provide cooling. The 5015M-MR(+)
and the 5015M-MF(+) both have two sets of these fans. Each fan unit is actually
made up of two fans joined back-to-back, which rotate in opposite directions. This
counter-rotating action generates exceptional airfl ow and works to dampen vibra-
tion levels. These fans can adjust their speed according to the heat level sensed
in the system, which results in more effi cient and quieter fan operation. Fan speed
is controlled by a setting in BIOS (see Chapter 7). Each fan in a set has its own
separate tachometer.
It is very important that the chassis top cover is properly installed for the airfl ow to
circulate properly through the chassis and cool the components.
System Fan Failure
If a fan fails, the remaining fans will ramp up to full speed and the overheat/fan
fail LED on the control panel will blink on and off. Replace any failed fan at your
earliest convenience with the same type and model (the system can continue to run
with a failed fan). Remove the top chassis cover while the system is still running
to determine which of the two fan units has failed. Then power down the system
before replacing a fan. Removing the power cord(s) is also recommended as a
safety precaution.
Chapter 6: Advanced Chassis Setup
6-3
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