Dell OPTIPLEX 990 Technical Manualbook page 6

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
DT System Board Components
Number
1 Internal Speaker Connector
(INT_SPKR)
2 Front IO Connector (FRONTPANEL)
3 Thermal Sensor Connector(THRM_2)
4 SATA 0 Connector(SATA0)
5 SATA 1 Connector(SATA1)
6 SATA 2 Connector(SATA2)
7 Internal USB Connector (INT_USB)
8 PCI-e 16x Connector(SLOT1)
9 PCI-e 4x Connector(SLOT4)
10 Buzzer (BEEP)
11 LPC Debug Connector (LPC_DEBUG)
12 PCI Connector(SLOT3)
Name Number
13 PCI-e 1x Connector(SLOT2)
14 Intrusion Switch Connector
(INTRUDER)
15 Thermal Sensor Connector(THRM_1)
16 System Fan Connector (FAN_HDD)
17 P2 Power Connector
(12V_PWRCONN)
18 Processor Connector (N/A)
19 CPU Fan Connector (FAN_CPU)
20 Memory Connectors(DIMM1, DIMM2,
DIMM3, DIMM4)
21 Power Switch Connector (PWR_SW)
22 Battery Connector (BATTERY)
23 P1 Power Connector (POWER)
Name
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