Lenovo 7D2F, Maintenance Manual

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Green hard disk drive activity LED does not represent actual state of associated drive
Complete the following steps until the problem is solved:
1. If the green hard disk drive activity LED does not flash when the drive is in use, run the diagnostics tests
for the hard disk drives. When you start a server and press the key according to the on-screen
instructions, the LXPM is displayed by default. (For more information, see the “Startup” section in the
LXPM documentation compatible with your server at
https://sysmgt.lenovofiles.com/help/topic/lxpm_
frontend/lxpm_product_page.html .) You can perform hard drive diagnostics from this interface. From the
Diagnostic page, click
Run Diagnostic
➙
HDD test/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.
Note:
**
Depending on the LXPM version, you may see
HDD test
or
Disk Drive Test
.
Fan problems
Use this information to resolve issues related the to fans.
• “Abnormally high RPM (revolutions per minute)” on page 147
Abnormally high RPM (revolutions per minute)
Complete the following steps until the problem is solved.
1. Check to see if the system inlet perforation or heatsinks are clogged.
2. Make sure that all air baffles are correctly installed in the server.
3. Check the thermal grease on the processor, and make sure it's not contaminated.
Intermittent problems
Use this information to solve intermittent problems.
• “Intermittent external device problems” on page 147
• “Intermittent KVM problems” on page 148
• “Intermittent unexpected reboots” on page 148
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.
Chapter 4
.
Problem determination
147