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OptiPlex 7090 Micro Form Factor Service Manual

PDF

Removing the system board

Prerequisites

  1. Follow the procedure in before working inside your computer.
  2. Remove the side cover.
  3. Remove the graphics card
  4. Remove the solid-state drive.
  5. Remove the WLAN card.
  6. Remove the fan assembly.
  7. Remove the memory module.
  8. Remove the speaker.
  9. Remove the processor.

About this task

The following images indicate the location of the system board and provide a visual representation of the removal procedure.

Discrete system board

  1. M.2 WLAN connector
  2. M.2 SSD PCIe connector
  3. Coin-cell battery
  4. M.2 SSD PCIe connector
  5. Riser card connector
  6. Processor socket
  7. CPU fan connector
  8. Internal speaker connector
  9. Memory modules
  10. Intrusion switch
35 W system board

  1. M.2 WLAN card connector
  2. M.2 SSD PCIe connector
  3. 2.5-inch hard-drive connector
  4. Coin-cell battery
  5. Optional video connector (VGA Port/DisplayPort 1.4 Port/HDMI 2.0b Port)
  6. Optional connector (USB 3.2 Gen 2 Type-C Port)
  7. Optional Keyboard and mouse serial port connector
  8. Processor socket
  9. CPU Fan connector
  10. Internal speaker connector
  11. Memory modules
  12. Intrusion switch
  13. M.2 SSD PCIe connector
65 W system board

  1. M.2 WLAN card connector
  2. 2.5-inch hard-drive connector
  3. M.2 SSD PCIe connector
  4. Coin-cell battery
  5. Optional video connector (VGA Port/DisplayPort 1.4 Port/HDMI 2.0b Port)
  6. Optional connector (USB 3.2 Gen 2 Type-C Port)
  7. Optional Keyboard and mouse serial port connector
  8. Processor socket
  9. CPU Fan connector
  10. Internal speaker connector
  11. Memory modules
  12. Intrusion switch
  13. M.2 SSD PCIe connector

Image: Removing the system board

Image: Removing the system board

Steps

  1. Remove the screw (6-32) that secures the hard drive support to the system board.
  2. Lift the hard drive support away from the system board.
  3. Remove the three (M3x4) screws and three (6-32) screws that secure the system board to the chassis.
  4. Lift the system board away from the chassis.
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