Dell OptiPlex 990 Support Question
Dell OptiPlex 990 Support Question
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Question posted by Anonymous-30553 on June 8th, 2011
Cannot Power On Optiplex 990
I Cannot power on optiplex 990
Current Answers
Answer #1: Posted by kcmjr on June 9th, 2011 12:42 PM
kcmjr
Member since:
May 5th, 2011 Points: 4,254,255
Member since:
May 5th, 2011 Points: 4,254,255
The tech guide is here for download: http://www.dell.com/downloads/global/products/optix/en/optiplex-990-tech-guide.pdf
Is the power cord FULLY plugged in? Try a different power cord.
If the warranty is still valid don't do the following, it will void your warranty. Also do not perform these steps unless you are comfortable doing so, you can damage the PC or yourself.
Open the chassis. Look for lit indicator lights on the main board. Both when the power cord is in but the system "should" be off and when it "should" be on.
I'm not 100% sure that there ARE any indicator light on this mainboard so it may be normal for nothing to be lit. Most Dell systems have "some".
Check the main power supply plug to be sure it's fully seated.
Disconnect power from the hard disk and CD drive. Try the power again. Does the mainboard try to power up? If so you have a bad disk drive.
Reconnect the disk drive an UNPLUG the mainboard power. To power the system on you'll need to bypass the main board. This link has info on this: http://freespace.virgin.net/matt.waite/resource/psu/atxpsu.htm. Short pins 14 and 15 with a bent paper clip to power it on. Does the disk drive spin up? If so the mainboard, CPU, or RAM is bad.
Bay all means if you feel uncomfortable doing any of these steps return the system to a service shop for full diagnosis.
Licenses & Certifications: Microsoft, Cisco, VMware, Novell, FCC RF & Amateur Radio licensed.
Related Dell OptiPlex 990 Manual Pages
User Manual - Page 1
...(4)
9. padlock ring
Regulatory Model: D09M, D05D, D03S, D01U Regulatory Type: D09M001, D05D001, D03S001, D01U002 January 2011 power supply diagnostic light 11. headphone connector 4. optical-drive eject button 8. 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...
Technical Guide - Page 3
...™ 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...
Technical Guide - Page 4
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0
MT System Board Components
Number
Name
Number
...1 Connector(SATA1)
14
PCI-e 4x Connector(SLOT4)
15
Intrusion Switch Connector (INTRUDER)
16
System Fan Connector (FAN_HDD)
17
P2 Power Connector (12V_PWRCONN)
6
SATA 2 Connector(SATA2)
18
Processor Connector (N/A)
7
SATA 3 Connector(SATA3)
8
Internal USB Connector (INT_USB)...
Technical Guide - Page 5
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 ...
Technical Guide - Page 6
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0
DT System Board Components
Number
Name
1
Internal Speaker Connector
(INT_SPKR)
2
Front IO Connector (...
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)...
Technical Guide - Page 7
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...
Technical Guide - Page 8
DELL™ OPTIPLEX™ 990 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(SLOT2)
6
PCI-e 16x Connector(SLOT1)
7
SATA 2 Connector(SATA2)
8
SATA 1 Connector(SATA1)
9
SATA 0 ...
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 ...
Technical Guide - Page 10
DELL™ OPTIPLEX™ 990 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
Memory Connector(DIMM_1)
12
P1 Power Connector(POWER1)
4
CPU Fan Connector (FAN_CPU)
13
HDD-ODD Power Connector (HDD_ODD_POWER)
5
Internal ...
Technical Guide - Page 17
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0
COMMUNICATIONS -
COMMUNICATIONS - MT
Intel® 82579LM Gigabit1 Ethernet LAN ... Optional
AUDIO AND SPEAKERS
Realtek ALC269Q High Definition Audio Codec Internal Dell Business Audio Speaker Dell AX210 2.0 Desktop Speakers Dell AX510/AX510PA Flat Panel Soundbar Speakers
KEYBOARD AND MOUSE
Dell USB Entry Keyboard with optional palmrest...
Technical Guide - Page 21
... output +5.0v output
+12.0v output
+5.0v auxiliary output -12.0v output Max total power Max combined +3.3v / +5.0v power Max combined 12.0v power (note: only if more efficient Active Power Factor Correction (APFC) power supply. DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 POWER
NOTE: These form factors utilize a more than one 12v rail) BTUs/h (based on...
Technical Guide - Page 22
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 POWER
NOTE: These form factors utilize a more efficient Active Power Factor Correction (APFC) power supply.
If you have ... or Longer.1133Hrs.or Longer after 12 months. 0℃±2℃. 910Hrs. Dell recommends only Universal Power Supplies (UPS) based on Sine Wave output for APFC PSUs, not an approximation of a Sine Wave...
Technical Guide - Page 23
...) cards and DT and SFF supports low profile (LP) cards.
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0
AUDIO
INTEGRATED REALTEK ALC269Q HIGH DEFINITION AUDIO High Definition Stereo support... memory Data transfer mode (example Bus-Master DMA) Power consumption (full operation per data rate connection speed) Power consumption (standby operation) IEEE standards compliance (example 802...
Technical Guide - Page 24
...example PCIe 1.0a x1)
Integrated memory
Data transfer mode (example Bus-Master DMA)
Power consumption (full operation per data rate connection speed)
Power consumption (standby operation)
IEEE standards compliance (example 802.1P)
Hardware Certifications (example FCC...does not connote an actual operating speed of 1 Gb/sec. DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 COMMUNICATIONS -
Technical Guide - Page 26
... Connector Type Controller Details Controller bus architecture (example PCIe 1.0a x1) Chipset IO Ports Power Consumption Connector Full height USB3.0 add-in card Half height USB3.0 add-in card OS... 30 mA USB 3.0 A Type
Optional Win XP, Win Vista and Win 7
USFF 26 DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 COMMUNICATIONS - WIRELESS
DELL WIRELESS 1520 PCIE WLAN CARD (MT, DT, SFF) OR ...
Technical Guide - Page 28
...: Analog and/or digital) External Connectors
DisplayPort Bus Type Maximum supported resolution Maximum power consumption External connectors
MT
DT
SFF
USFF
Integrated Gen6 Core Intel® HD Graphics... The DisplayPort controller does not support multi-monitor display in DOS. DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0
GRAPHICS/VIDEO CONTROLLER
NOTE: MT supports full height (FH)...
Technical Guide - Page 29
...OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0
GRAPHICS/VIDEO CONTROLLER (CONT.)
1GB AMD RADEON™ HD6670 Bus Type (example integrated or PCIe x16) GPU core clock Frame Buffer Memory (onboard and shared) Size and Speed Maximum power... Frame Buffer Memory (onboard and shared) Size and Speed Maximum power consumption Overlay Planes Maximum Color Depth Maximum Vertical Refresh Rate Multiple Display...
Technical Guide - Page 30
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 GRAPHICS/VIDEO CONTROLLER (CONT.)
512MB AMD RADEON™ HD6350 Bus Type (example integrated or PCIe x16) GPU core clock Frame Buffer Memory (onboard and shared) Size and Speed Maximum power consumption Overlay Planes Maximum Color Depth Maximum Vertical Refresh Rate Multiple Display Support Operating Systems Graphics/ Video...
Technical Guide - Page 31
... and operating environment and will be less.
31 DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 HARD DRIVES1
3.5" 1TB SATA 7200 RPM HDD Capacity (bytes) Dimensions inches (W x D x H) Interface type and Maximum speed Internal buffer size Average Seek Time Rotational Speed Logical Blocks Power Source Power Consumption (reference only) Spin Up Current (reference only) Environmental...
Technical Guide - Page 32
DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 HARD DRIVES1 (CONT.)
3.5" 500GB SATA 7200 RPM HDD Capacity (bytes) Dimensions inches (W x D x H) Interface type and Maximum speed Internal buffer size Average Seek Time Rotational Speed Logical Blocks Power Source Power Consumption (reference only) Spin Up Current (reference only)
Environmental Operating Conditions (Non-Condensing):
...
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