Dell OptiPlex 390 Technical Guide - Page 6

DELL™ OPTIPLEX™ 390 TECHNICAL GUIDEBOOK -FINAL DT System Board Components Number Name 1 Front IO connector (FRONTPANEL)) 2 Internal Speaker Connector (INT_SPKR) 3 System fan Connector (FAN_SYS1) 4 SATA 1 Connector(SATA1) 5 SATA 0 Connector(SATA0) 6 SATA 2 Connector(SATA2) 7 SATA 3 Connector(SATA3) 8 Internal USB Connector (USBF1) 9 Internal USB Connector (USBF1) 10 Internal Audio Connector (AUDIOF1) 11 PCI-e 1x Connector (SLOT4) 12 PCI-e 1x Connector (SLOT3) 13 PCI-e 1x Connector (SLOT2) Number 14 15 16 17 18 19 20 21 22 23 24 25 Name PCI-e 16x Connector (SLOT1) System fan Connector (FAN_SYS2) P2 Power Connector(ATX12V) CPU Socket Connector (U27CPU) CPU fan Connector (FAN_CPU) Memory Connector(DIMM1) P1 power Connector (ATX) Power Switch Connector (PWRSW1) Memory Connector(DIMM2) Battery Connector (BT1) Intrusion Switch Connector (Intruder) KB/MS COM Connector (KBMSCOM1) 6