ASROCK Z170 OC Formula Manual page 5

No. Description
34 Slow Mode Switch (SLOWMODE)
35 Rapid OC Button (–) (MINUS)
36 Menu Button (MENU)
37 LN2 Mode Switch (LN2MODE)
38 Chassis Fan Connector (CHA_FAN2)
39 PCIe ON/OFF Switch (SWITCH1)
40 COM Port Header (COM1)
41 USB 2.0 Header (USB5_6)
42 USB 2.0 Header (USB3_4)
43 Power LED and Speaker Header (SPK_PLED1)
44 TPM Header (TPMS1)
45 Thunderbolt 3 AIC Connector (TB2)
46 Thunderbolt 2 AIC Connector (TB1)
47 Front Panel Audio Header (HD_AUDIO1)
48 CPU Fan Connector (CPU_FAN1)
49 Chassis Fan Connector (CHA_FAN3)
50 Clear CMOS Jumper (CLRMOS1)
Z170 OC Formula
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