DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
MINI TOWER COMPUTER (M T) VI EW
FRONT VIEW
Power Button, Power
1
Light
2 Optical Drive Bay
(optional)
Headphone Connector
3
4
Microphone Connector
5
Diagnostic Lights (4)
BACK PANEL CONNECTORS
1
Mouse Connector
2
Link Integrity Light
3
Network Connector
4
Network Activity Light
5
Serial Connector
6
Line-out Connector
6
Optical Drive (optional)
7
Optical Drive Eject Button
8
USB 2.0 Connectors (4)
9
Drive Activity Light
7
Keyboard Connector
8
USB Connectors (6)
9
DisplayPort Connector
10 VGA Connector
11 Line-in/Microphone
Connector
BACK VIEW
10 Power Supply Diagnostic
Light
11 Power Supply Diagnostic
Button
12 Power Connectors
13 Back Panel Connectors
14
Expansion Card Slots(4)
15
Security Cable Slot
16
Padlock Ring
3