Memory Module Problems - Lenovo ThinkServer RD650 User Manual And Hardware Maintenance Manual

• The status LEDs on each hot-swap storage drive help you easily identify a problem. See "Hot-swap-drive
activity and status LEDs" on page 51.
Symptom
A newly installed hot-swap storage drive is not recognized.
Multiple storage drives fail.

Memory module problems

Follow the suggested actions for the corresponding symptom in the order in which they are listed until the
problem is solved. If none of these actions solve the problem, see "Troubleshooting procedure" on page 197
for the subsequent steps you should check after using the information in this topic. If the problem still cannot
be solved, seek technical assistance. See Chapter 8 "Getting information, help, and service" on page 203.
Notes:
• If you are instructed to remove, install, or replace any CRUs, refer to the related procedure in Chapter
6 "Replacing hardware" on page 67.
• If an action step is preceded by "(Trained service technician only)," this action step is reserved for a trained
service technician and must be performed only by a trained service technician.
200
ThinkServer RD650 User Guide and Hardware Maintenance Manual
Action
1. Ensure that the drive is installed into the correct drive
bay.
2. Restart the server.
3. Remove the drive from the bay, wait 45 seconds, and
reinsert the drive into the bay, making sure that the
drive connects to the hot-swap-drive backplane.
4. Run any diagnostic programs to test the drive if you
have.
5. Ensure that the hot-swap-drive backplane is correctly
seated. When it is correctly seated, the drive
assemblies correctly connect to the backplane
without bowing or causing movement of the
backplane.
6. Ensure that the cable connection is correct. See
"Connecting cables" on page 52.
7. Reconnect the backplane power cable and repeat
step 1 through step 4.
8. Reconnect the backplane signal cable and repeat
step 1 through step 4.
9. If you suspect a problem with the backplane signal
cable or the backplane:
a. Replace the affected backplane signal cable.
b. Replace the affected backplane.
1. Ensure that the cable connection is correct. See
"Connecting cables" on page 52.
2. Reconnect the power cable(s).
3. Reconnect the signal cable(s).
4. Replace the affected signal cable(s).
5. If you suspect a problem with the backplane, replace
the affected backplane.