Observable Problems - Lenovo ThinkSystem SR645 V3 User Manual

4. Try to use a monitor that has been verified without a problem.
5. If the monitor display still fails, do the following:
• If the VGA connector is on the front of the server:
a. Remove and reconnect the internal VGA cable. Ensure that the VGA cable is correctly connected
to the system board (system board assembly). See
b. Replace the left rack latch with VGA. See
c. (Trained technician only) Replace the system I/O board.
• If the VGA connector is on the rear of the server:
a. (Trained technician only) Replace the system I/O board.

Observable problems

Use this information to solve observable problems.
• "Server hangs during the UEFI boot process" on page 209
• "The server immediately displays the POST Event Viewer when it is turned on" on page 209
• "Server is unresponsive (POST is complete and operating system is running)" on page 210
• "Server is unresponsive (POST failed and cannot start System Setup)" on page 210
• "Voltage planar fault is displayed in the event log" on page 211
• "Unusual smell" on page 211
• "Server seems to be running hot" on page 211
• "Cannot enter legacy mode after installing a new adapter" on page 211
• "Cracked parts or cracked chassis" on page 212
Server hangs during the UEFI boot process
If the system hangs during the UEFI boot process with the message UEFI: DXE INIT on the display, make sure
that Option ROMs were not configured with a setting of Legacy. You can remotely view the current settings
for Option ROMs by running the following command using the Lenovo XClarity Essentials OneCLI:
onecli config show EnableDisableAdapterOptionROMSupport --bmc xcc_userid:xcc_password@xcc_ipaddress
To recover a system that hangs during the boot process with Legacy Option ROM settings, see the following
Tech Tip:
https://datacentersupport.lenovo.com/us/en/solutions/ht506118
If legacy Option ROMs must be used, do not set slot Option ROMs to Legacy on the Devices and I/O Ports
menu. Instead, set slot Option ROMs to Auto (the default setting), and set the System Boot Mode to Legacy
Mode. Legacy option ROMs will be invoked shortly before the system boots.
The server immediately displays the POST Event Viewer when it is turned on
Complete the following steps until the problem is solved.
1. Correct any errors that are indicated by the system LEDs and diagnostics display.
2. Make sure that the server supports all the processors and that the processors match in speed and
cache size.
You can view processor details from system setup.
Chapter 6 "Internal cable routing" on page 157
"Rack latches replacement" on page
Chapter 8
115.
.
Problem determination
209