Lenovo ThinkServer RD220 3797 Series Installation And User Manual page 34

v Reset button: Press this button to reset the server and run the power-on
For more information about EasyLED diagnostics, see the Hardware Maintenance
Manual.
The following table lists the LEDs on the EasyLED diagnostics panel and suggested
actions to solve the detected problems.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
LED Description
None, but An error has occurred and cannot be
the diagnosed, or the IMM has failed. The
system- error is not represented by an EasyLED
error LED diagnostics LED.
is lit.
OVER The server was shut down due to a
SPEC power-supply overload condition on one
of the power channels. The power
supplies are using more power than the
maximum rating.
LOG An error message has been written to
the system-event log
LINK Reserved.
PS A power supply has failed.
18
ThinkServer RD220 Types 3729, 3779, 3797, and 3798: Installation and User Guide
There are two types of checkpoint codes: field programmable gate array (FPGA)
hardware checkpoint codes and UEFI checkpoint codes. The UEFI checkpoint
codes might change because of code sequence and timing changes or when the
server firmware is updated.
self-test (POST). You might have to use a pen or the end of a straightened paper
clip to press the button. The reset button is in the lower right-hand corner of the
diagnostics panel.
Action
Use the Setup utility to check the system-event log for
information about the error.
1. If any of the 12v power channel error LEDs (A, B, C, D, E,
or AUX) on the system board are lit also, see "Power
problems" on page 138. (See "System-board LEDs" on
page 27 for the location of the power channel error LEDs.)
2. Check the power supply LEDs for an error indication (AC
LED and DC LED are not both lit, or the power-supply error
LED is lit). Swap power supplies 1 and 2 with each other.
v If the error follows the power supply, replace the failed
power supply.
v If the error remains with the power bay, (trained service
technician only) replace the system board.
3. Remove optional devices from the server.
Check the IMM system event log and the system-error log for
information about the error. Replace any components that are
identified in the error logs.
1. Check the power supply LEDs for an error indication (AC
LED and DC LED are not both lit). See Table 16 on page
149 for more information.
2. Make sure that the failing power supply is correctly seated.
3. Replace the failed power supply.