User Manual
Page 1
optical-drive bay (optional) 3. optical drive (optional) 7. optical-drive eject button 8. drive activity light 10. Front And Back View Of Mini Tower 1. USB 2.0 connectors (4) 9. expansion-card slots (4) 15. headphone connector 4. diagnostic lights (4) 6. security-cable slot 16. Dell OptiPlex 990 Setup And Features Information About Warnings WARNING: A WARNING indicates a potential for property damage, personal injury, or death. power...
optical-drive bay (optional) 3. optical drive (optional) 7. optical-drive eject button 8. drive activity light 10. Front And Back View Of Mini Tower 1. USB 2.0 connectors (4) 9. expansion-card slots (4) 15. headphone connector 4. diagnostic lights (4) 6. security-cable slot 16. Dell OptiPlex 990 Setup And Features Information About Warnings WARNING: A WARNING indicates a potential for property damage, personal injury, or death. power...
User Manual
Page 2
optical-drive eject button 3. USB 2.0 connectors (4) 5. power supply diagnostic button 2 microphone connector 6. power connector 12. power supply diagnostic light 15. Front And Back View Figure 2. headphone connector 7. diagnostic lights (4) 9. security-cable slot 11. power button, power light 4. padlock ring 10. back panel connectors 13. expansion-card slots (4) 14. optical drive 2. Front And Back View Of Desktop 1. Desktop - drive activity light 8.
optical-drive eject button 3. USB 2.0 connectors (4) 5. power supply diagnostic button 2 microphone connector 6. power connector 12. power supply diagnostic light 15. Front And Back View Figure 2. headphone connector 7. diagnostic lights (4) 9. security-cable slot 11. power button, power light 4. padlock ring 10. back panel connectors 13. expansion-card slots (4) 14. optical drive 2. Front And Back View Of Desktop 1. Desktop - drive activity light 8.
User Manual
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Front And Back View Of Small Form Factor 1. USB 2.0 connectors (4) 5. expansion-card slots (2) 3 Front And Back View Figure 3. microphone connector 6. padlock ring 10. power connector 12. power supply diagnostic button 13. power button, power light 4. diagnostic lights (4) 8. headphone connector 7. security-cable slot 11. power supply diagnostic light 14. optical-drive eject button 3. back panel connectors 15. Small Form Factor - drive activity light 9. optical drive 2.
Front And Back View Of Small Form Factor 1. USB 2.0 connectors (4) 5. expansion-card slots (2) 3 Front And Back View Figure 3. microphone connector 6. padlock ring 10. power connector 12. power supply diagnostic button 13. power button, power light 4. diagnostic lights (4) 8. headphone connector 7. security-cable slot 11. power supply diagnostic light 14. optical-drive eject button 3. back panel connectors 15. Small Form Factor - drive activity light 9. optical drive 2.
User Manual
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optical drive 2. drive activity light 5. network activity light 11. USB 2.0 connectors (5) 21. diagnostic lights (4) 6. serial connector 20. network connector 22. microphone connector 8. captive thumbscrew 12. line-in/microphone connector 17. link integrity light 4 padlock ring 13. VGA connector 19. headphone connector 7. power connector 15. USB 2.0 connectors (2) 9. Ultra Small Form Factor - Front And Back View Figure 4. power...
optical drive 2. drive activity light 5. network activity light 11. USB 2.0 connectors (5) 21. diagnostic lights (4) 6. serial connector 20. network connector 22. microphone connector 8. captive thumbscrew 12. line-in/microphone connector 17. link integrity light 4 padlock ring 13. VGA connector 19. headphone connector 7. power connector 15. USB 2.0 connectors (2) 9. Ultra Small Form Factor - Front And Back View Figure 4. power...
User Manual
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... data from or writing data to the power connector (at support.dell.com/ manuals. AC power must be connected to the hard drive. Amber light - one Control Lights And Diagnostic Lights Front of the computer) and the electrical outlet. Solid blue light indicates power-on the diagnostic lights, see the Service Manual at the back of computer Power...
... data from or writing data to the power connector (at support.dell.com/ manuals. AC power must be connected to the hard drive. Amber light - one Control Lights And Diagnostic Lights Front of the computer) and the electrical outlet. Solid blue light indicates power-on the diagnostic lights, see the Service Manual at the back of computer Power...
Technical Guide
Page 3
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 MINI TOWER COMPUTER (MT) VIEW FRONT VIEW BACK VIEW 1 Power Button, Power Light 6 Optical Drive (optional) 10 Power Supply Diagnostic 14 Expansion Card Slots(4) Light 2 Optical Drive Bay (optional) 3 Headphone Connector 4 Microphone Connector 7 Optical Drive Eject Button 8 USB 2.0 Connectors (4) 9 Drive Activity Light 11 Power Supply Diagnostic 15 Security Cable Slot Button 12...
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 MINI TOWER COMPUTER (MT) VIEW FRONT VIEW BACK VIEW 1 Power Button, Power Light 6 Optical Drive (optional) 10 Power Supply Diagnostic 14 Expansion Card Slots(4) Light 2 Optical Drive Bay (optional) 3 Headphone Connector 4 Microphone Connector 7 Optical Drive Eject Button 8 USB 2.0 Connectors (4) 9 Drive Activity Light 11 Power Supply Diagnostic 15 Security Cable Slot Button 12...
Technical Guide
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DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 DESKTOP COMPUTER (DT) VIEW FRONT VIEW 1 Optical Drive BACK VIEW 5 Microphone Connector 9 Padlock Ring 13 Expansion Card Slots(4) 2 Optical Drive Eject Button 6 Headphone Connector 10 Security Cable Slot 3 Power Button, Power Light 4 USB Connectors (4) 7 Drive Activity Light 8 Diagnostic Lights (4) 11 Power Connectors 12 Back Panel Connectors 14 Power Supply Diagnostic Light 15 Power...
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 DESKTOP COMPUTER (DT) VIEW FRONT VIEW 1 Optical Drive BACK VIEW 5 Microphone Connector 9 Padlock Ring 13 Expansion Card Slots(4) 2 Optical Drive Eject Button 6 Headphone Connector 10 Security Cable Slot 3 Power Button, Power Light 4 USB Connectors (4) 7 Drive Activity Light 8 Diagnostic Lights (4) 11 Power Connectors 12 Back Panel Connectors 14 Power Supply Diagnostic Light 15 Power...
Technical Guide
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DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 SMALL FORM FACTOR COMPUTER (SFF) VIEW FRONT VIEW 1 Optical Drive 5 Microphone Connector 2 Optical Drive Eject Button 6 Headphone Connector 3 Power Button, Power Light 4 USB 2.0 Connectors (2) 7 Diagnostic Lights (4) 8 Drive Activity Light BACK VIEW 9 Padlock Ring 10 Security Cable Slot 11 Power Connectors 13 Power Supply Diagnostic Light 14 Back Panel Connectors 15 Expansion Card Slots...
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 SMALL FORM FACTOR COMPUTER (SFF) VIEW FRONT VIEW 1 Optical Drive 5 Microphone Connector 2 Optical Drive Eject Button 6 Headphone Connector 3 Power Button, Power Light 4 USB 2.0 Connectors (2) 7 Diagnostic Lights (4) 8 Drive Activity Light BACK VIEW 9 Padlock Ring 10 Security Cable Slot 11 Power Connectors 13 Power Supply Diagnostic Light 14 Back Panel Connectors 15 Expansion Card Slots...
Technical Guide
Page 9
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 ULTRA SMALL FORM FACTOR COMPUTER (USFF) VIEW FRONT VIEW 1 Optical Drive 2 Optical Drive Eject Button 3 Power Button, Power Light 4 Drive Activity Light 5 Diagnostic Lights (4) 6 Headphone Connector 7 Microphone Connector 8 USB Connectors (2) BACK VIEW 10 Wi-Fi Antenna (optional) 17 Line-in/ Microphone Connector 11 Network Activity Light 18 DisplayPort Connector 12 Captive Thumbscrew...
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 ULTRA SMALL FORM FACTOR COMPUTER (USFF) VIEW FRONT VIEW 1 Optical Drive 2 Optical Drive Eject Button 3 Power Button, Power Light 4 Drive Activity Light 5 Diagnostic Lights (4) 6 Headphone Connector 7 Microphone Connector 8 USB Connectors (2) BACK VIEW 10 Wi-Fi Antenna (optional) 17 Line-in/ Microphone Connector 11 Network Activity Light 18 DisplayPort Connector 12 Captive Thumbscrew...