Status Color Description Action
On
Yellow An error has been detected on the server. 
Causes might include but are not limited to 
the following errors: 
•  A fan failure
•  A memory error
•  A storage failure
•  A PCIe device failure
•  A power supply failure
•  A processor error
•  A system I/O board or processor board 
error
•  Check the Lenovo XClarity Controller 
event log and the system event log to 
determine the exact cause of the error.
•  Check if additional LEDs elsewhere in the 
server are also lit that will direct you to the 
source of the error. See 
“Troubleshooting 
by system LEDs and diagnostics display” 
on page 476
.
•  Save the log if necessary.
Off None The server is off, or the server is on and is 
working correctly.
None.
7  Front operator panel or integrated diagnostics panel
Depending on the server model, the server comes with the front operator panel (without LCD display) or the 
integrated diagnostics panel (with LCD display).
The integrated diagnostic panel provides an LCD display to quickly access system information such as 
active errors, system status, firmware information, network information, and health information. For details, 
see 
“Integrated diagnostics panel” on page 479.
Figure 5. Integrated diagnostics panel (with LCD display) Figure 6. Front operator panel (without LCD display)
Rear view
The rear of the server provides access to several connectors and components.
Refer to the following rear views for different server models: 
• 
“Rear view with eight PCIe slots” on page 25
•  “Rear view with ten PCIe slots” on page 25
•  “Rear view with four 2.5-inch rear drive bays and six PCIe slots” on page 26
•  “Rear view with eight 2.5-inch rear drive bays and four PCIe slots” on page 26
•  “Rear view with two 3.5-inch rear drive bays and four PCIe slots” on page 27
24
ThinkSystem SR665 V3 User Guide