Jumpers and Connectors 169
6 J3 USB connectors (USB1, USB2, USB3, and
USB4)
7 J4 NIC connectors (LOM1_UP and LOM2_
DOWN)
8 VGA Video connector
9 COM Serial connector
10 RAC_CONN Remote Access Controller (RAC)
11 FAN2 Rear system fan connector
12 DIMM1_A Memory module connector (slot 1)
13 DIMM1_B Memory module connector (slot 2)
14 DIMM2_A Memory module connector (slot 3)
15 DIMM2_B Memory module connector (slot 4)
16 DIMM3_A Memory module connector (slot 5)
17 DIMM3_B Memory module connector (slot 6)
18 FLOPPY Diskette drive connector
19 PWR_CONN Main power connector
20 12V Power connector
21 PSU_12C Power distribution board connector
22 CTRL_PNL Control panel connector
23 CPU Microprocessor connector
24 BP_12C Backplane connector
25 USB_CONN Internal USB connector
26 SATA_B SATA drive connector
27 SATA_D SATA drive connector
28 SATA_F SATA drive connector
29 FAN1 Front system fan connector
30 INTRUSION Chassis intrusion switch connector
Table 6-1. System Board Connectors (continued)
Item Connector Description