Instruction/ maintenance manual of the product 990 Dell
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Dell OptiPlex 990 Desktop Service Manual Regulatory Model: D05D Regulatory Type: D05D001.
Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Contents Notes, Cautions, and Warnings ..................................................................2 1 Working on Your Computer ......................................................................9 Before Working Inside Your Computer .........
Installing The Memory .....................................................................................................28 8 Chassis Intrusion Switch ........................................................................ 29 Removing the Chassis Intrusion Switch .
16 Power Supply .......................................................................................... 49 Removing The Power Supply .......................................................................................... 49 Installing The Power Supply .
Controller has failed .................................................................................................. 84 Data error ................................................................................................................. 84 Decreasing available memory .
Shutdown failure ...................................................................................................... 89 Time-of-day clock stopped ...................................................................................... 89 Time-of-day not set-please run the System Setup program .
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1 Working on Your Computer Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety.
NOTE: The color of your computer and certain components may appear differently than shown in this document. To avoid damaging your computer, perform the following steps before you begin working inside the computer. 1. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.
Click Start , then click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down . – In Windows XP: Click Start → Turn Off Computer → Turn Off . The computer turns off after the operating system shutdown process is complete.
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2 Cover Removing the Cover 1. Follow the procedures in Before Working Inside Your Computer . 2. Pull up the cover-release latch at the side of the computer. 3. Lift the cover upward to a 45–degree angle and remove it from the computer. Installing The Cover 1.
3. Follow the procedures in After Working Inside Your Computer . 14.
3 Front Bezel Removing the Front Bezel 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Pry the front bezel retention clips away from the chassis. 4. Rotate the bezel away from the computer to release the hooks on the opposite edge of the bezel from the chassis.
Installing The Front Bezel 1. Insert the hooks along the bottom edge of the front bezel into the slots on the chassis front. 2. Rotate the bezel towards the computer to engage the four front-bezel retention clips until they click into place. 3. Install the cover .
4 Cards Removing the Expansion Card 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Rotate the release tab on the card-retention latch upward. 4. Pull the release lever away from the PCIe x16 card to release the securing tab from the dent in the card.
6. Lift the PCI expansion card (if any) up and out of its connector and remove it from the computer. 7. Lift the PCI x4 expansion card (if any) up and out of its connector and remove it from the computer.
Installing The Expansion Card 1. Insert the PCIe x4 card into the connector on the system board and press down to secure it in place. 2. Insert the PCIe card (if any) into the connector on the system board and press down to secure it in place.
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5 Optical Drive Removing the Optical Drive 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Remove the front bezel .
Installing The Optical Drive 1. Slide down the optical-drive latch and push the optical drive from the front towards the back of the computer. 2. Connect the data cable and power cable to the optical drive. 3. Install the front bezel . 4. Install the cover .
6 Hard Drive Removing the Hard Drive 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Remove the data cable and power cable from the back of the hard drive. 4. Press the hard-drive bracket latch towards the hard drive and lift it upward.
6. Turn over the hard-drive bracket and release the screws that secure the 2.5 inch hard drive to the underside of the bracket. 7. Flex the hard-drive bracket and then remove the two 2.5 inch hard drives from the bracket. 8. Release the screws that secure the 2.
9. Release the screws that secure the 2.5 inch hard drive to the underside of the hard drive bracket. Installing The Hard Drive 1. Tighten the screws to secure the 2.5 inch hard drive(s) to the hard-drive bracket. 2. Flex the hard-drive bracket and then insert the single 3.
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7 Memory Removing the Memory 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Release the memory-retention clips on each side of the memory modules. 4. Lift the memory modules out of the connectors on the system board.
Installing The Memory 1. Insert the memory modules into the connectors on the system board. Install the memory module in the order of A1 > B1 > A2 > B2. 2. Press down on the memory modules until the retention clips spring back to secure them in place.
8 Chassis Intrusion Switch Removing the Chassis Intrusion Switch 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Disconnect the intrusion-switch cable from the system board. 4. Slide the intrusion switch toward the chassis bottom and remove it from the system board.
Installing The Chassis Intrusion Switch 1. Insert the intrusion switch into the chassis rear and slide it toward the chassis top to secure it. 2. Connect the intrusion-switch cable to the system board. 3. Install the cover . 4. Follow the procedures in After Working Inside Your Computer .
9 Speaker Removing The Speaker 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Disconnect the speaker cable from the system board. 4. Unthread the speaker cable from the chassis clip. 5. Press down the speaker-securing tab and slide the speaker upwards to remove it.
Installing The Speaker 1. Press the speaker-securing tab and slide the speaker downward to secure it. 2. Thread the speaker cable into the chassis clip. 3. Connect the speaker cable to the system board. 4. Install the cover . 5. Follow the procedures in After Working Inside Your Computer .
10 Heat Sink Removing The Heat Sink and Processor 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Disconnect the heat-sink assembly cable from the system board. 4. Loosen the captive screws in the order: 1, 2, 3 and 4.
6. Press the release lever down and then move it outward to release it from the retention hook that secures it. 7. Lift the processor cover. 8. Lift the processor to remove it from the socket and place it in an antistatic package.
Installing The Heat Sink and Processor 1. Insert the processor into the processor socket. Ensure that the processor is properly seated. 2. Lower the processor cover. 3. Press the release lever down and then move it inward to secure it with the retention hook.
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11 Coin-Cell Battery Removing The Coin-Cell Battery 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Press the coin-cell battery inward to allow the battery to pop up from the socket. 4. Lift the coin-cell battery out of the computer.
Installing The Coin-Cell Battery 1. Place the coin-cell battery into its slot on the system board. 2. Press the coin-cell battery downwards until it is secured.
12 Power-Switch Cable Removing The Power-Switch Cable 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Remove the front bezel . 4. Disconnect the power-switch cable from the system board. 5. Pry the power-switch cable free.
Installing The Power-Switch Cable 1. Slide the power-switch cable in through the front of the computer. 2. Secure the power-switch cable to the chassis. 3. Connect the power-switch cable to the system board. 4. Install the front bezel . 5. Install the cover .
13 Front Thermal Sensor Removing The Front Thermal Sensor 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Remove the front bezel . 4. Disconnect the thermal-sensor cable from the system board. 5. Unthread the thermal-sensor cable from the chassis clips.
7. Pry the thermal sensor away from the chassis front and remove. Installing The Front Thermal Sensor 1. Secure the thermal sensor to the chassis front. 2. Thread the thermal-sensor cable into the chassis clips. 3. Connect the thermal-sensor cable to the system board.
14 Chassis Fan Removing The System Fan 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Remove the front bezel . 4. Disconnect the system-fan cable from the system board. 5. Unthread the system-fan cable from the chassis clips.
7. Lift and remove the system fan out of the computer. 8. Pry up and remove the four grommets from the system fan. Installing The System Fan 1. Place the system fan in the chassis. 2. Pass the four grommets through the chassis and slide outwards along the grooves to secure them in place.
4. Connect the system-fan cable to the system board. 5. Install the front bezel . 6. Install the cover . 7. Follow the procedures in After Working Inside Your Computer .
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15 Input/Output Panel Removing The Input/Output Panel 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Remove the front bezel . 4. Disconnect the Input/Output panel or the FlyWire cable from the system board. 5.
7. Remove the Input/Output panel. Installing The Input/Output Panel 1. Insert the Input/Output panel into the slot on the chassis front. 2. Slide the Input/Output panel towards the left of the computer to secure to the chassis. 3. Tighten the screw to secure the Input/Output panel to the chassis.
16 Power Supply Removing The Power Supply 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Remove the PSU thermal sensor . 4. Disconnect the 4–pin power cable from the system board. 5. Unthread the 4–pin power cable from the chassis clips.
7. Unthread the 24–pin power cable from the chassis clip. 8. Remove the screws that secure the power supply to the back of the computer. 9. Push in on the blue release tab beside the power supply, and slide the power towards the front of the computer.
10. Lift the power supply out of the computer. Installing The Power Supply 1. Place the power supply in the chassis and slide towards the back of the computer to secure it. 2. Tighten the screws to secure the power supply from the back of the computer.
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17 System Board Removing The System Board 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Remove the front bezel . 4. Remove the hard drive . 5. Remove the expansion cards . 6. Remove the heat sink and processor .
9. Remove the screws that secure the system board to the chassis. 10. Slide the system board towards the front of the computer. 11. Remove the system board from the chassis. Installing The System Board 1. Align the system board to the port connectors on the back of the chassis and place the system board in the chassis.
3. Close the expansion-card latch. 4. Connect the cables to the system board. 5. Install the heat sink and processor . 6. Install the expansion card . 7. Install the hard drive . 8. Install the front bezel . 9. Install the cover . 10. Follow the procedures in After Working Inside Your Computer .
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18 Power Supply Unit (PSU) Thermal Sensor Removing The PSU Thermal Sensor 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the cover . 3. Disconnect the thermal-sensor cable from the system board. 4. Unthread the thermal-sensor cable from the chassis clip.
Installing The PSU Thermal Sensor 1. Secure the thermal sensor to the power supply. 2. Thread the thermal-sensor cable into the chassis clip. 3. Connect the thermal-sensor cable to the system board. 4. Install the cover . 5. Follow the procedures in After Working Inside Your Computer .
19 System Setup System Setup This computer offers you the following options: • Access System Setup by pressing <F2> • Bring up a one-time boot menu by pressing <F12> Press <F2> to enter System Setup and make changes to the user-definable settings.
benefit here is that you do not have to remember the <Ctrl><Alt><D> and <Ctrl><Alt><F10> keystrokes (although they still work). NOTE: The BIOS features an option to disable either or both of the keystroke prompts under the System Security / Post Hotkeys submenu.
Beep Codes and Text Error Messages The OptiPlex BIOS is capable of displaying error messages in plain English, along with beep codes. If the BIOS determine the previous boot was unsuccessful, it displays an error message similar to the following: Previous attempts at booting the system have failed at checkpoint ______.
General Mode, Memory Technology, DIMM 1 Size, DIMM 2 Size, DIMM 3 Size, and DIMM 4 Size . • Processor Information: Displays Processor Type, Core Count, Processor ID, Current Clock Speed, Minimum Clock Speed, Maximum Clock Speed, Processor L2 Cache, Processor L3 Cache, HT Capable, and 64-Bit Technology.
System Configuration Serial Port Allows you to define the serial port settings. You can set the serial port to: • Disabled • Auto • COM1 • COM2 • COM3 • COM4 NOTE: The operating system may allocate resources even though the setting is disabled.
System Configuration If USB port is disabled, the OS cannot see any device attached to this port. • Enable USB Controller • Disable USB Mass Storage Dev • Disable USB Controller NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of these settings.
Security • System Password Max Password Bypass Allows you to bypass the System (Boot) Password and the internal HDD password prompts during a system restart. • Disabled — Always prompt for the system and internal HDD password when they are set. This option is disabled by default.
Security Chassis Intrusion Allows you to enable or disable the chassis intrusion feature. You can set this option to: • Clear Intrusion Warning — Enabled by default if chassis intrusion is detected. • Disable • Enable • On-Silent — Enabled by default if chassis intrusion is detected.
Performance Intel ® TurboBoost ™ Allows you to enable or disable Inel TurboBoost mode of the processor. • Disabled — Does not allow the TurboBoost driver to increase the performance state of the processor above the standard performance.
Power Management Wake on LAN This option allows the computer to power up from the off state when triggered by a special LAN signal. Wake-up from the Standby state is unaffected by this setting and must be enabled in the operating system. This feature only works when the computer is connected to AC power supply.
Virtualization Support provided by Intel ® Virtualization Technology. Enable Intel ® Virtualization Technology — This option is enabled by default. VT for Direct I/O Enables or disables the Virtual Machine Monitor (VMM) from utilizing the additional hardware capabilities provided by Intel ® Virtualization technology for direct I/O.
Image Server NOTE: This field is only relevant when the "Integrated NIC" control in the "System Configuration" group is set to "Enabled with ImageServer".
System Logs • Clear Log DellDiag Events Displays the DellDiag event log. Thermal Events Displays the thermal event log and allows you to: • Clear Log Power Events Allows you to clear the power event logs. • Clear Log BIOS Progress Events Displays the BIOS Progress event log.
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20 Troubleshooting Diagnostic LEDs NOTE: The diagnostic LEDs only serve as an indicator of the progress through the Power-on Self-Test (POST) process. These LEDs do not indicate the problem that caused the POST routine to stop. The diagnostic LEDs are located on the front of the chassis next to the power button.
– Ensure that any power strips being used are plugged into an electrical outlet and are turned on. – Ensure that the electrical outlet is working by testing it with another device, such as a lamp. – Ensure that the main power cable and front panel cable are securely connected to the system board.
– If the LED still does not illuminate, the problem is with the power supply. LED Power Button Problem Description Memory modules are detected, but a memory power failure has occurred. Troubleshooting Steps – If two or more memory modules are installed, remove the modules, then re-install one module and re-start the computer.
Problem Description A possible system board failure has occurred. Troubleshooting Steps Remove all peripheral cards from the PCI and PCI-E slots and re-start the computer. If the computer boots, add the peripheral cards back one by one until you find the bad one.
– If the problem persists, the system board is faulty. LED Power Button Problem Description A possible coin cell battery failure has occurred. Troubleshooting Steps Remove the coin cell battery for one minute, reinstall the battery, and restart. LED Power Button Problem Description A possible processor failure has occurred.
– If available, install working memory of the same type into your computer. LED Power Button Problem Description A possible hard drive failure has occurred. Troubleshooting Steps Re-seat all power and data cables. LED Power Button Problem Description A possible USB failure has occurred.
LED Power Button Problem Description Memory modules are detected, but a memory configuration or compatibility error has occurred. Troubleshooting Steps – Ensure that no special requirements for memory module/connector placement exist. – Ensure that the memory you are using is supported by your computer.
Troubleshooting Steps – Clear CMOS. – Disconnect all internal and external peripherals, and restart the computer. If the computer boots, add the peripheral cards back one by one until you find the bad one. – If the problem persists, the system board / system board component is faulty.
Cause Microprocessor register failure Code 1-1-3 Cause NVRAM Code 1-1-4 Cause ROM BIOS checksum failure Code 1-2-1 Cause Programmable interval timer Code 1-2-2 Cause DMA initialization failure Code 1-.
Cause Keyboard Controller Test failure Code 3-3-1 Cause NVRAM power loss Code 3-3-2 Cause NVRAM configuration Code 3-3-4 Cause Video Memory Test failure Code 3-4-1 Cause Screen initialization failure .
Cause Timer-chip counter 2 failure Code 4–3–4 Cause Time-of-day clock stopped Code 4–4–1 Cause Serial or parallel port test failure Code 4–4–2 Cause Failure to decompress code to shadowed .
Alert! Security override Jumper is installed. Description The MFG_MODE jumper has been set and AMT Management features are disabled until it is removed. Attachment failed to respond Description The floppy or hard drive controller cannot send data to the associated drive.
Decreasing available memory Description One or more memory modules may be faulty or improperly seated. Re- install the memory modules and, if necessary, replace them. Diskette drive 0 seek failure Description A cable may be loose or the computer configuration information may not match the hardware configuration.
Hard-disk drive controller failure Description The hard drive failed initialization. Hard-disk drive failure Description The hard drive failed initialization.
Memory allocation error Description The software you are attempting to run is conflicting with the operating system, another program, or a utility. Memory data line failure at address, read value expecting value Description A memory module may be faulty or improperly seated.
Memory tests terminated by keystroke Description A keystroke interrupted the memory test. No boot device available Description The computer cannot find the floppy disk or hard drive. No boot sector on hard-disk drive Description The computer configuration information in System Setup may be incorrect.
Read fault Description The operating system cannot read from the floppy or hard drive, the computer could not find a particular sector on the disk, or the requested sector is defective.
Time-of-day not set-please run the System Setup program Description The time or date stored in System Setup does not match the computer clock. Timer chip counter 2 failed Description A chip on the system board may be malfunctioning.
Write fault on selected drive Description The operating system cannot write to the floppy or hard drive. X: is not accessible. The device is not ready Description The floppy drive cannot read the disk. Insert a floppy disk into the drive and try again.
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21 Specifications Technical Specifications NOTE: Offerings may vary by region. For more information regarding the configuration of your computer, click Start (or Start in Windows XP) Help and Support, and then select the option to view information about your computer.
Memory Desktop, Mini-Tower, Small Form Factor 16 GB Ultra Small Form Factor 8 GB Video Integrated • Intel HD Graphics (with Intel Celeron/Pentium-class CPU-GPU combo) • Intel HD Graphics 2000 (wit.
Expansion Bus • x1-slot bidirectional speed – 500 MB/s • x16-slot bidirectional speed – 16 GB/s SATA: 1.5 Gbps, 3.0 Gbps, and 6 Gbps Cards PCI Mini-Tower up to one full-height card Desktop up .
Drives Externally Accessible (5.25–inch drive bays) Mini-Tower two Desktop one Small Form Factor one slim optical drive bay Ultra Small Form Factor one slim optical drive bay Internally Accessible: 3.5–inch SATA drive bays Mini-Tower two Desktop one Small Form Factor one Ultra Small Form Factor none 2.
External Connectors Mini-Tower, Desktop, Small Form Factor Front Panel: 4 Back Panel: 6 Ultra Small Form Factor Front Panel: 2 Back Panel: 5 Video 15-pin VGA connector, 20-pin DisplayPort connector NOTE: Available video connectors may vary based on the graphics card selected.
System Board Connectors Mini PCI Express data width (maximum) — one PCI Express lane and one USB interface Mini-Tower, Desktop, Small Form Factor none Ultra Small Form Factor one 52-pin connector Se.
System Board Connectors Processor one 1155-pin connector Processor Fan one 5-pin connector Service mode jumper one 2-pin connector Password clear jumper one 2-pin connector RTC reset jumper one 2-pin .
Controls and Lights see the Service Manual at support.dell.com/manuals. Back of the computer: Link integrity light on integrated network adapter Green — a good 10 Mbps connection exists between the network and the computer. Orange — a good 100 Mbps connection exists between the network and the computer.
Power Wattage Maximum Heat Dissipation Voltage Mini-Tower 265 W 1390 BTU/hr 100 VAC to 240 VAC, 50 Hz to 60 Hz, 5.0 A Desktop 250 W 1312 BTU/hr 100 VAC to 240 VAC, 50 Hz to 60 Hz, 4.4 A Small Form Factor 240 W 1259 BTU/hr 100 VAC to 240 VAC, 50 Hz to 60 Hz, 3.
Environmental Storage 2.2 GRMS Maximum shock: Operating 40 G Storage 105 G Altitude: Operating –15.2 m to 3048 m (–50 ft to 10,000 ft) Storage –15.2 m to 10,668 m (–50 ft to 35,000 ft) Airborne contaminant level G1 or lower as defined by ANSI/ISA- S71.
22 Contacting Dell Contacting Dell NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options.
An important point after buying a device Dell 990 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Dell 990 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Dell 990 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Dell 990 you will learn all the available features of the product, as well as information on its operation. The information that you get Dell 990 will certainly help you make a decision on the purchase.
If you already are a holder of Dell 990, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Dell 990.
However, one of the most important roles played by the user manual is to help in solving problems with Dell 990. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Dell 990 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
