Dell OptiPlex 990 Technical Guide - Page 6

DT System Board Components

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DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 DT System Board Components Number Name 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) Number Name 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) 6

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DELL™ OPTIPLEX™ 990
TECHNICAL GUIDEBOOK
—
V 1.0
6
Number
Name
Number
Name
1
Internal Speaker Connector
(INT_SPKR)
13
PCI-e 1x Connector(SLOT2)
2
Front IO Connector (FRONTPANEL)
14
Intrusion Switch Connector
(INTRUDER)
3
Thermal Sensor Connector(THRM_2)
15
Thermal Sensor Connector(THRM_1)
4
SATA 0 Connector(SATA0)
16
System Fan Connector (FAN_HDD)
5
SATA 1 Connector(SATA1)
17
P2 Power Connector
(12V_PWRCONN)
6
SATA 2 Connector(SATA2)
18
Processor Connector (N/A)
7
Internal USB Connector (INT_USB)
19
CPU Fan Connector (FAN_CPU)
8
PCI-e 16x Connector(SLOT1)
20
Memory Connectors(DIMM1, DIMM2,
DIMM3, DIMM4)
9
PCI-e 4x Connector(SLOT4)
21
Power Switch Connector (PWR_SW)
10
Buzzer (BEEP)
22
Battery Connector (BATTERY)
11
LPC Debug Connector (LPC_DEBUG)
23
P1 Power
Connector (POWER)
12
PCI Connector(SLOT3)
DT System Board Components