Dell Precision Rack 7910 Owner's Manual page 56

Steps
1. Locate the internal dual SD module on the system board.
2. If installed, remove the SD card(s).
3. Hold the plastic pull tab and pull the dual SD module out of the system board.
Figure 30. Removing and installing the Internal Dual SD Module (IDSDM)
1. Internal Dual SD module
3. SD card (2)
5. SD card slot 1
The following table describes the IDSDM indicator codes.
Convention
A
B
C
D
56 Installing and removing system components
IDSDM indicator code
Green
Flashing green
Flashing amber
Amber
2. LED status indicator (2)
4. SD card slot 2
6. IDSDM connector
Condition
Indicates that the card is online
Indicates rebuild or activity
Indicates card mismatch or that the card has failed
Indicates that the card is offline, has failed, or is write
protected