By placing the system-error LED indicator in Remind mode, you acknowledge
that you are aware of the last failure but will not take immediate action to correct
the problem. The remind function is controlled by the IMM.
v NMI button: Press this button to force a nonmaskable interrupt to the
microprocessor. You might have to use a pen or the end of a straightened paper
clip to press the button. It allows you to blue screen the server and take a
memory dump (use this button only when directed by service personnel).
v Checkpoint code display: This display 1 provides a checkpoint code that
indicates the point at which the system stopped during the boot block and POST.
A checkpoint code is either a byte or a word value that is produced by UEFI. The
display does not provide error codes or suggest components to be replaced.
Checkpoint codes can be used by service and support for more in-depth
troubleshooting. By using the checkpoint code display, you do not have to wait
for the video to initialize each time you restart the server.
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.
v Reset button: Press this button to reset the server and run the power-on
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 corner of the
EasyLED panel.
18 ThinkServer RD210 Types 3795, 3796, 3818, and 3819: Installation and User Guide
