v See Chapter 4, “Parts listing, Types 7871 and 1949,” on page 41 to determine which components are CRUs and
which components are FRUs.
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Message Action
System under recommended voltage for +0.9
V.
Informational only.
Note: If the problem remains, complete the following steps:
1. Reseat the blade server - See “Removing the blade server from the
BladeCenter unit” on page 52 and “Installing the blade server in a
BladeCenter unit” on page 53.
2. Check the function of the shared BladeCenter unit resources. See
“Solving shared BladeCenter resource problems” on page 217.
3. (Trained service technician only) Replace the system-board
assembly - See “Removing the system-board assembly” on page
94 and “Installing the system-board assembly” on page 95.
System under recommended voltage for +3.3
V.
Informational only.
Note: If the problem remains, complete the following steps:
1. Reseat the blade server - See “Removing the blade server from the
BladeCenter unit” on page 52 and “Installing the blade server in a
BladeCenter unit” on page 53.
2. Check the function of the shared BladeCenter unit resources. See
“Solving shared BladeCenter resource problems” on page 217.
3. (Trained service technician only) Replace the system-board
assembly - See “Removing the system-board assembly” on page
94 and “Installing the system-board assembly” on page 95.
System under recommended +5 V fault.
Informational only.
Note: If the problem remains, complete the following steps:
1. Reseat the blade server - See “Removing the blade server from the
BladeCenter unit” on page 52 and “Installing the blade server in a
BladeCenter unit” on page 53.
2. Check the function of the shared BladeCenter unit resources. See
“Solving shared BladeCenter resource problems” on page 217.
3. (Trained service technician only) Replace the system-board
assembly - See “Removing the system-board assembly” on page
94 and “Installing the system-board assembly” on page 95.
Chapter 6. Diagnostics 173
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