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Jumpers and Connectors 157
6 PWRD_EN
NVRAM_CLR
Password and configuration jumper
7 VGA Video connector
8 RISER1 Center riser expansion card interface connector
9 COM Serial connector
10 RAC_CONN Remote Access Control (RAC) card connector
11 HD_ACT_CARD Hard drive activity connector (expansion controller)
12 DIMM3_B Memory module (slot 6)
13 DIMM3_A Memory module (slot 5)
14 DIMM2_B Memory module (slot 4)
15 DIMM2_A Memory module (slot 3)
16 DIMM1_B Memory module (slot 2)
17 DIMM1_A Memory module (slot 1)
18 FAN_MOD2 Power connector for FAN3 and FAN4
19 CPU Processor socket
20 FAN_MOD1 Power connector for FAN1 and FAN 2
21 USB_CONN Internal USB key connector
22 12V Power supply connector (12 volt)
23 PWR_CONN Power supply connector
24 SATA_A Connector for the SATA A CDROM drive
25 PDB_12C Power distribution board
26 SATA_B Connector for the SATA B hard drive
27 SATA_C Connector for the SATA C optical drive device (ODD)
28 CTRL_PNL Control panel interface connector
29 RISER2 Left riser expansion card interface connector
30 BATTERY Connector for the 3.0 V coin battery
Table 6-2. System Board Connectors (continued)
Item Connector Description