Sony VAIO PCV-RX260DS - Manual (Page 69)

System Board 55
CPU Fan Connector
The CPU_FAN connector is a 1 x 3-pin straight header connector.
CPU_FAN connects to the CPU fan and controls the CPU cooling.
CPU_FAN Connector
Pin Signal Name
1 Ground
2 FAN_CTRL (+12V)
3 FAN_SEN
KY0101.VSD
CPU_FAN
3 1