Intermittent Problems - Lenovo ThinkSystem SR665 V3 User Manual

lxpm_frontend/lxpm_product_page.html
From the Diagnostic page, click Run Diagnostic ➙ Disk Drive Test
2. If the drive passes the test, replace the backplane.
3. If the drive fails the test, replace the drive.
Yellow hard disk drive status LED does not represent actual state of associated drive
Complete the following steps until the problem is solved:
1. Turn off the server.
2. Reseat the SAS/SATA adapter.
3. Reseat the backplane signal cable and backplane power cable.
4. Reseat the hard disk drive.
5. Power on the server and observe the activity of the hard disk drive LEDs.
U.3 NVMe drive can be detected in NVMe connection, but cannot be detected in Tri-mode
In Tri-mode, NVMe drives are connected via a PCIe x1 link to the controller. To support Tri-mode with U.3
NVMe drives, U.3 x1 mode must be enabled for the selected drive slots on the backplane through the XCC
Web GUI. By default, the backplane setting is U.2 x4 mode.
Complete the following steps to enable U.3 x1 mode:
1. Log into the XCC Web GUI, and choose Storage ➙ Detail from the navigation tree on the left.
2. In the window that is displayed, click the icon
3. In the dialog box that is displayed, select the target drive slots and click Apply.
4. Do a DC power cycle to make the setting take effect.

Intermittent problems

Use this information to solve intermittent problems.
• "Intermittent external device problems" on page 217
• "Intermittent KVM problems" on page 218
• "Intermittent unexpected reboots" on page 218
Intermittent external device problems
Complete the following steps until the problem is solved.
1. Update the UEFI and XCC firmware to the latest versions.
2. Make sure that the correct device drivers are installed. See the manufacturer's website for
documentation.
3. For a USB device:
a. Make sure that the device is configured correctly.
Restart the server and press the key according to the on-screen instructions to display the LXPM
system setup interface. (For more information, see the "Startup" section in the LXPM documentation
compatible with your server at
.) Then, click System Settings ➙ Devices and I/O Ports ➙ USB Configuration.
page.html
b. Connect the device to another port. If using a USB hub, remove the hub and connect the device
directly to the server. Make sure that the device is configured correctly for the port.
.) You can perform hard drive diagnostics from this interface.
next to Backplane.
https://sysmgt.lenovofiles.com/help/topic/lxpm_frontend/lxpm_product_
.
Chapter 8 Problem determination
217