Drive LED Status Description
Blinking yellow (blinking rapidly, about four 
flashes per second)
The RAID adapter is locating the drive.
9  Drive bay filler
The drive bay filler is used to cover vacant drive bays.
Front I/O assembly
The front I/O assembly of the server provides controls, connectors, and LEDs. The front I/O assembly varies 
by model.
The following illustrations show the controls, connectors, and LEDs on the front I/O assembly of the server. 
To locate the front I/O assembly, see “Front view” on page 21. 
Figure 10. Front I/O assembly for server models with eight 3.5-inch-drive bays, eight 2.5-inch-drive bays, and sixteen 2.5- 
inch-drive bays
Figure 11. Front I/O assembly for server models with twelve 3.5-inch-drive bays and twenty-four 2.5-inch-drive bays
Table 3.  Components on the front I/O assembly
Callout Callout
1  XClarity Controller USB connector 2  USB 3.0 connector
3  Power button with power status LED 4  Network activity LED
5  System ID button with system ID LED 6  System error LED
24 ThinkSystem SR650 Setup Guide