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Dell OptiPlex 990 Support Question

Dell OptiPlex 990 Support Question

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Question posted by stwrSCDM on January 13th, 2014

Dell 990 Diagnostic Lights 1,2, And 3 Light On Pc Will Not Boot

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Current Answers

Answer #1: Posted by prateekk007 on January 14th, 2014 2:55 AM
This answer was accepted by the poster of the original question.
prateekk007

Member since:
December 5th, 2012

Points: 2,137,520
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Hi stwrSCDM,

It seems to be an issue with the coin cell battery. You may try to reseat the coin cell battery and check if that helps. Click on the link given below and refer to page number 37 to get the instructions for removing/installing the coin cell battery:

http://bit.ly/18unuCy

Please reply if you have further queries.

To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US Customers; India Customers. For Here for Dell support videos.


Thanks & Regards
Prateek K


Related Dell OptiPlex 990 Manual Pages

User Manual - Page 1

.... padlock ring Regulatory Model: D09M, D05D, D03S, D01U Regulatory Type: D09M001, D05D001, D03S001, D01U002 January 2011 power supply diagnostic light 11. Front And Back View Figure 1. USB 2.0 connectors (4) 9. expansion-card slots (4) 15. Dell OptiPlex 990 Setup And Features Information About Warnings WARNING: A WARNING indicates a potential for property damage, personal injury, or death...
User Manual - Page 2

... ring 10. security-cable slot 11. back panel connectors 13. Front And Back View Figure 2. USB 2.0 connectors (4) 5. microphone connector 6. expansion-card slots (4) 14. power supply diagnostic light 15. power button, power light 4. headphone connector 7. power supply diagnostic button 2 optical drive 2. Desktop - diagnostic lights (4) 9. power connector 12.
User Manual - Page 3

...And Back View Of Small Form Factor 1. USB 2.0 connectors (4) 5. Front And Back View Figure 3. optical drive 2. diagnostic lights (4) 8. expansion-card slots (2) 3 optical-drive eject button 3. power connector 12. power supply diagnostic light 14. drive activity light 9. power button, power light 4. back panel connectors 15. Small Form Factor - microphone connector 6.
User Manual - Page 4

microphone connector 8. power connector 15. network connector 22. Front And Back View Of Ultra Small Form Factor 1. drive activity light 5. diagnostic lights (4) 6. USB 2.0 connectors (2) 9. captive thumbscrew 12. Front And Back View Figure 4. optical drive 2. Wi-Fi antenna (optional) 10. padlock ring 13. line-in/microphone connector 17. ...
User Manual - Page 5

... View Of Small Form Factor 1. network activity light 6. line-out connector Small Form Factor - Mini Tower And Desktop - Back Panel Figure 5. USB 2.0 connectors (6) 9. line-in /microphone connector 5 link integrity light 4. network connector 5. serial connector 3. keyboard connector 8. link integrity light 3. keyboard connector 8. mouse connector 2. VGA connector 10...
User Manual - Page 10

... Form Factor - AC power must be connected during this test. 10 two • Desktop - one • Small Form Factor - blinking blue light indicates sleep state of the computer) and the electrical outlet. Diagnostic lights Four lights located on state; Blinking blue light indicates that the computer is functional. The power supply is within specification, the self...
Technical Guide - Page 1

INSIDE THE OPTIPLEX 990 DELL TM OPTIPLEX TM 990 TECHNICAL GUIDEBOOK-
Technical Guide - Page 3

DELLOPTIPLEX990 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 ...
Technical Guide - Page 4

DELLOPTIPLEX990 TECHNICAL GUIDEBOOK -V 1.0 MT System Board Components Number Name Number Name 1 Internal Speaker Connector (INT_SPKR) 13 PCI Connector(SLOT3) 2 Front IO Connector (FRONTPANEL) 3 Thermal Sensor Connector(...
Technical Guide - Page 5

DELLOPTIPLEX990 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 ...
Technical Guide - Page 6

DELLOPTIPLEX990 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(...
Technical Guide - Page 7

DELLOPTIPLEX990 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...
Technical Guide - Page 8

DELLOPTIPLEX990 TECHNICAL GUIDEBOOK -V 1.0 SFF System Board Components Number Name 1 P1 power Connector (POWER) 2 System fan Connector (FAN_HDD) 3 Internal Speaker Connector (INT_SPKR) 4 Buzzer (BEEP) 5 PCI-e 4x Connector(...
Technical Guide - Page 9

DELLOPTIPLEX990 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 ...
Technical Guide - Page 10

DELLOPTIPLEX990 TECHNICAL GUIDEBOOK -V 1.0 USFF System Board Components 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 ...
Technical Guide - Page 11

...; Business SP2 (32 and 64 bit), Windows Vista® Ultimate SP2 (32 bit) Basic Driver support only via Dell.com FreeDOS for (N-series), Ubuntu® Linux version 10.10 (China only) X X X X CHIPSET Chipset Non... option to view information about your computer. DELLOPTIPLEX990 TECHNICAL GUIDEBOOK -V 1.0 MARKETING SYSTEM CONFIGURATIONS NOTE: Offerings may vary by country.
Technical Guide - Page 12

.... The following GSP processors identified below will be made available to implement global IT standards by region/ country. DELLOPTIPLEX990 TECHNICAL GUIDEBOOK -V 1.0 PROCESSOR NOTE: Global Standard Products (GSP) are a subset of Dell's relationship products that are not a measure of configurations managed on a worldwide basis. Processor availability subject to reduce the...
Technical Guide - Page 13

DELLOPTIPLEX990 TECHNICAL GUIDEBOOK -V 1.0 MEMORY NOTE: Memory modules should be installed in pairs of available memory will continue to 4GB 1GB 8GB1 Memory configurations 16GB1 DDR3, 1333MHz, (4 ...
Technical Guide - Page 14

DELLOPTIPLEX990 TECHNICAL GUIDEBOOK -V 1.0 DRIVES AND REMOVABLE STORAGE Bays: 5.25-inch Optical Bay Supported (External) Optical Drives Supported (maximum) Hard Drive Bay Supported (Internal) MT DT 2 1 2 1 2 1 Hard ...
Technical Guide - Page 15

... drives, GB means 1 billion bytes; actual capacity varies with preloaded material and operating environment and will be compatible with some existing drives and players; DELLOPTIPLEX990 TECHNICAL GUIDEBOOK -V 1.0 DRIVES AND REMOVABLE STORAGE MT DT RAID 0 Performance: (includes two matching capacity/speed hard drives) 1TB1 SATA 7200 RPM HDD (3.5") X 500GB1 SATA...

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