Observable Problems - Lenovo ThinkSystem SR635 V3 User Manual

Monitor display fails when connected to the VGA connector of the server
Complete the following steps until the problem is solved:
1. Check and ensure that the server is turned on.
2. If there is a KVM connected between the monitor and server, remove the KVM.
3. Reconnect the monitor cables and ensure that the cables are connected correctly.
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 assembly. See
b. Replace the left rack latch with VGA. See
c. (Trained technicians only) Replace the system I/O board.
• If the VGA connector is on the rear of the server:
a. (Trained technicians 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 325
• "The server immediately displays the POST Event Viewer when it is turned on" on page 326
• "Server is unresponsive (POST is complete and operating system is running)" on page 326
• "Server is unresponsive (POST failed and cannot start System Setup)" on page 326
• "Voltage planar fault is displayed in the event log" on page 327
• "Unusual smell" on page 327
• "Server seems to be running hot" on page 327
• "Cannot enter legacy mode after installing a new adapter" on page 327
• "Cracked parts or cracked chassis" on page 328
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/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.
Chapter 6 "Internal cable routing" on page 217
"Rack latches replacement" on page 156.
.
Chapter 8 Problem determination
325