
Dell PowerEdge XE9785 Installation and Service Manual
Installing the M.2 NVMe SSD module
Prerequisites
- Follow the safety guidelines listed in the Safety instructions.
- Follow the procedure listed in Before working inside your system.
Steps
- Remove the thermal pads on the top cover and bottom cover of the BOSS-N1 DC-MHS
card carrier, when replacing the M.2 NVMe SSD module. NOTE:The existing thermal pad cannot be reused. You must use the new thermal pads before installing the M.2 NVMe SSD module.
Figure 1. Removing the old thermal pads on the top and bottom of the BOSS-N1 DC-MHS card carriers 
Figure 2. Flip the new thermal pads and removing the blue film 
Figure 3. Installing the new thermal pads on the top and bottom of the BOSS-N1 DC-MHS card carriers 
Figure 4. Pasting the new thermal pads 
Figure 5. Removing the black mylars 
- Align the M.2 NVMe SSD module at an angle with the BOSS-N1 DC-MHS card carrier connector.
- Insert the M.2 NVMe SSD module until it is firmly seated in the BOSS-N1 DC-MHS
card carrier connector. NOTE:Press the M.2 NVMe SSD card until it adheres to the thermal pad.
Figure 6. Installing the M.2 NVMe SSD module 
- Align at an angle, place the top cover hook into the slot on the bottom cover of the BOSS-N1 DC-MHS card carrier.
- Press the opposite side of the top cover until firmly seated.
Figure 7. Installing the top cover 
- Using the Phillips 1 screwdriver, tighten the captive screws on the BOSS-N1 card carrier top cover.NOTE:Follow the sequence to tighten the captive screws. First, tighten the screw available at the front handle end, and then the screw at the connector end.
Figure 8. Tighten the top cover captive screws 
- Slide the BOSS-N1 card carrier into the BOSS-N1 module slot.
- Close the BOSS-N1 card carrier release latch to lock the carrier in place.
Figure 9. Installing the BOSS-N1 card carrier 
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