Sony PCV-L400 - Manual (Page 56)

VAIO Computer Reference Manual 48
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 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
*
* 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).
3 3.3V sense
4 NC (key)
5 Reserved
6 Reserved
KY0034.VSD
4
1
6
3
CTRL PWR
CPU Fan
3
1