ASROCK Fatal1ty X99 Professional Series User Manual page 16

No. Description
1 2 x 284-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
2 2 x 284-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)
3 8 pin ATX 12V Power Connector (ATX12V1)
4 4 pin ATX 12V Power Connector (ATX12V2)
5 CPU Fan Connector (CPU_FAN1)
6 2 x 284-pin DDR4 DIMM Slots (DDR4_D2, DDR4_C2)
7 2 x 284-pin DDR4 DIMM Slots (DDR4_D1, DDR4_C1)
8 CPU Fan Connector (CPU_FAN2)
9 Rapid OC Button (+) (PLUS)
10 Rapid OC Button (–) (MINUS)
11 Menu Button (MENU)
12 PCIe ON/OFF Switch (SWITCH1)
13 LN2 Mode Switch (LN2MODE)
14 Slow Mode Switch (SLOWMODE)
TM
15 V-Probe
16 Post Status Checker (PSC)
17 ATX Power Connector (ATXPWR1)
18 USB 3.0 Header (USB3_7_8)
19 Vertical Type A USB 3.0 (USB3_8)
20 Chassis Fan Connector (CHA_FAN3)
21 USB 3.0 Header (USB3_9_10)
22 SATA3 Connectors (S_SATA3_0_1)
23 SATA3 Connectors (S_SATA3_2_3)
24 SATA3 Connectors (SATA3_0_1)
25 SATA3 Connectors (SATA3_2_3)
26 SATA3 Connectors (SATA3_4_5)
27 HDD Saver Connector (SATA_PWR_1)
28 BIOS Selection Switch (BIOS_SEL1)
29 Power LED Header (PLED1)
30 Direct Key Button (DIRKEY1)
31 Chassis Speaker Header (SPEAKER1)
32 System Panel Header (PANEL1)
33 Power Switch (PWR)
8
(VOL_CON1)