Acer 3300S - Manual (Page 85)

79 Chapter 5
Fan Power Connectors: CPUFA/SYSFA
The CPUFA (processor fan) & SYSFA (system fan) support system cool-
ing fan with +12V. It supports three-pin head connector. When connecting the
wire to the connectors, always take note that the red wire is the positive and
should be connected to the +12V, the black wire is Ground and should be
connected to GND. If the mainboard has a System Hardware Monitor chipset
on-board, you must use a specially designed fan with speed sensor to take
advantage of the CPU fan control.
Note:
1. Always consult the vendor for proper CPU cooling fan.
2. CPU Fan supports the fan control. You can install the PC Alert
utility that will automatically control the CPU Fan speed accord-
ing to the actual CPU temperature.
CPUFA
S E N S O R
+12V
GND
SYSFA
S E N S O R
+12V
GND