5
System error LED
The system error LED helps you to determine if there are any system errors.
Status
Color
Description
Action
The temperature of the server reached
the non-critical temperature threshold.
Check the BMC for errors and check
the system fans.
The voltage of the server reached the
non-critical voltage threshold.
Replace the system board.
Note:
This procedure must be
performed only by trained service
personnel of Lenovo. See Chapter
8 “Getting information, help, and
service” on page 195.
A fan has been detected to be running
at low speed.
Check the system fans.
A hot-swap fan has been removed.
1. Ensure that the system fans are
connected securely to the system
board.
2. Reinstall the removed fan or
install a new fan to replace the
removed fan.
The power supply has a critical error.
Check the BMC for detailed
information.
The power cord has been
disconnected from one power
supply or a redundant power supply
has been removed.
1. Ensure that the power supplies
are installed securely in the
server.
2. Ensure that the power cords are
connected securely to the power
supplies.
3. Install a new power supply to
replace the removed one.
On
Amber
The THERMTRIP# signal is asserted
because the system is overheated.
Check the BMC for errors and then
check the system fans.
Off
None
The server is off or the server is on
and is working correctly.
6
Front USB connectors
Used to attach a USB-compatible device, such as a USB keyboard, mouse, scanner, or printer. If you
have more than six USB devices, you can purchase a USB hub, which you can use to connect additional
USB devices.
7
VGA DB-15 connector
Used to attach a VGA-compatible video device, such as a VGA monitor.
Diagnostic module
This topic provides information about the diagnostic module and the diagnostic LEDs on the panel of the
module. To locate the diagnostic panel, see “Front view of the server” on page 17.
Your server comes with one of the following diagnostic modules:
22
ThinkServer RD640 User Guide and Hardware Maintenance Manual
Summary of Contents for ThinkServer RD640
Page 14: ...xii ThinkServer RD640 User Guide and Hardware Maintenance Manual ...
Page 18: ...4 ThinkServer RD640 User Guide and Hardware Maintenance Manual ...
Page 20: ...6 ThinkServer RD640 User Guide and Hardware Maintenance Manual ...
Page 70: ...56 ThinkServer RD640 User Guide and Hardware Maintenance Manual ...
Page 202: ...188 ThinkServer RD640 User Guide and Hardware Maintenance Manual ...
Page 212: ...198 ThinkServer RD640 User Guide and Hardware Maintenance Manual ...
Page 228: ...214 ThinkServer RD640 User Guide and Hardware Maintenance Manual ...
Page 229: ......
Page 230: ......