1 Parallel Connector
2 Serial Connector
3 Link Integrity Light
4 Network Adapter Connector
5 Network Activity Light
6 Wi-Fi Antenna (optional)
7 Headphone Connector
8 Line-in/Microphone Connector
9 USB 2.0 connectors (6)
10 VGA Connector
11 eSATA Connector
12 DisplayPort Connector
13 Keyboard Connector
14 Mouse Connector
System Board1 Service Mode jumper (SERVICE_MODE)
2 RTC reset jumper (RTCRST)
3 Battery socket (BATTERY)
4 PCI Express x16 card connector (SLOT1)
5 PCI card connector (SLOT2)
6 Internal serial card connector (SERIAL2)
7 Thermal sensor connector (THRM3)
8 Speaker connector (INT_SPKR)
9 PCI Express x1 Wireless card connector (PCIE_WLS1)
10 Fan connector (FAN_CPU)
11 Power connector (12V POWER)
12 Memory module connectors (DIMM_1-4)
13 Front-panel connector (FRONTPANEL)
14 Internal buzzer (BEEP)
15 Password jumper (PSWD)
16 Intruder connector (INTRUDER)
17 SATA drive connectors (SATA0-2)
18 Internal USB connector (INT_USB)
19 Front I/O Connector (FIO)
20 Power connector (MICRO_PWR)