Specifications

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
10
Number Name Number Name
1 Front Panel Connector (FRONTPANEL) 10 SATA 1 Connector(SATA_1)
2 Memory Connector(DIMM_2) 11 SATA 0 Connector(SATA_0)
3 Memory Connector(DIMM_1) 12 P1 Power Connector(POWER1)
4 CPU Fan Connector (FAN_CPU) 13
HDD-ODD Power Connector
(HDD_ODD_POWER)
5 Internal Speaker Connector (INT_SPKR) 14
Intrusion Switch Connector
(INTRUDER)
6 Buzzer (BEEP) 15 LPC Debug Connector (LPC_DEBUG)
7 Front IO Connector (F_USB_AUDIO) 16 P2 Power Connector(12V_PWRCONN)
8 System Fan Connector (FAN_HDD) 17 Processor Connector (N/A)
9 Mini-PCI Socket (PCIE_MINICARD) 18 Battery Connector (BATTERY)
USFF System Board Components