
Dell PowerEdge R7525 Installation and Service Manual
BOSS S2 kit
The BOSS S2 supports up to two M.2 SSDs.
NOTE:To enable the BOSS S2 in the system, ensure that the BIOS firmware version is 1.5.5 and iDRAC firmware version is 4.30.30.30 or later.
Before you begin the installation or removal process, follow the safety guidelines and before working inside the system instructions.
| R7525 (quantity) | Components in kit |
|---|---|
| NA | BOSS cover |
| 1 | M3 x 0.05 x 4.5 mm screws |
| 1 | BOSS signal cable |
| 1 | BOSS power cable |
| 1 | BOSS-S2 controller card module |
| 1 or 2* | BOSS-S2 card carrier |
| 1 or 2* | M.2 SSD |
| 2 | M.2 240 GB information label |
| 2 | M.2 480 GB information label |
| 1 | BOSS card filler |
| 1 | Tech sheet |
To remove the BOSS blank :
- Power off the system and remove the system cover.
- Use a screwdriver to push out the BOSS blank from inside of the BOSS S2 controller card module slot.

To install the BOSS blank:
- Power off the system and remove the system cover.
- Align the BOSS blank at an angle with the BOSS S2 controller card module slot.
- Slot the BOSS blank into the BOSS S2 controller card module slot until it is firmly seated.

To install the BOSS S2 controller card module:
- Install the BOSS S2 controller card. To install the BOSS S2 controller card, see installing the BOSS S2 controller card module steps 1 to 4.
- Install the M.2 SSD. To install the M.2 SSD, see installing the BOSS S2 controller card module steps 5 to 9.
NOTE:Installing the BOSS S2 card carrier does not require the system to be powered off. System shutdown is only required when installing the BOSS S2 controller card module.
NOTE:Connect the BOSS signal cable and BOSS power cable after inserting the BOSS S2 controller card module into the system.
To remove the BOSS S2 controller card module:
- Power off the system and remove the system cover.
- Remove the M.2 SSD. To remove the M.2 SSD, see removing the BOSS S2 controller card module steps 1 to 4.
- Remove the BOSS S2 controller card module. To remove the BOSS S2 controller card module, see removing the BOSS S2 controller card module steps 5 to 6.
- Install the BOSS blank
NOTE:Removal of the BOSS S2 card carrier does not require the system to be powered off. System shutdown is only required when removing the BOSS S2 controller card module.
NOTE:Disconnect the BOSS signal cable and the BOSS power cable before lifting the controller card module from the system.
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