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54
VAIO Computer Reference Manual
Fan (CPU FAN, CTRL PWR) Connectors
The CPU Fan connector is a 1 x 3-pin straight header connector that
controls the CPU cooling fan.
The CTRL PWR connector is a 2 x 3-pin connector that controls the power
supply cooling fan. It connects to P3 from the power supply.
CPU Fan
1
3
CTRL PWR
O
N
3
6
1
4
1 2 3 4 5 6
KY0034.VSD
CPU Fan connector
Pin
Signal Name
1
GND
2
FAN_CTRL (+12V)
3
FAN_SEN
CTRL PWR connector
Pin
Signal Name
1
Fan M
2
Fan C*
3
3.3V sense
4
NC (key)
5
Reserved
6
Reserved
* Power supply provides 12V to this pin when system is in Power On mode (for fastest fan speed), and 6V
when system is in Suspend mode (to reduce fan noise).