TYAN Tank GT20 Service Engineer's Manual page 54

J13 Fan TACH Connector
1 GND
3 GND
5 GND
7 KEY PIN
J14 Fan TACH Connector
1 GND
3 GND
5 GND
7 GND
9 GND
11 GND
13 GND
15 GND
17 GND
19 GND
21 KEY PIN
J6 Fan Connector
1
2
3
4
5
6
46
2 FAN1_TACH
4 FAN2_TACH
6 FAN3_TACH
8 NC
2 FAN1_TACH
4 FAN2_TACH
6 FAN3_TACH
8 FAN4_TACH
10 FAN5_TACH
12 FAN6_TACH
14 FAN7_TACH
16 FAN8_TACH
18 FAN9_TACH
20 FAN10_TACH
22 NC
FAN1_12VPWM
FAN1_TACH
GND
GND
FAN2_TACH
FAN2_12VPWM
Chapter 3: Replacing Pre-Installed Components