v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 3, “Parts listing, System x3755 Type 8877 and 7163,” on page 25 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
BMC log message
Sensor
number
Sensor
type
Action
VRD 2 status
Assertion 00 (Presence
detected)
25
08
Information only
VRD 2 status
Assertion 01 (Power unit
failure)
25
08
1. Reseat the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
2. Reseat the microprocessor and heat sink.
3. Replace the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
VRD 3 status
Assertion 00 (Presence
detected)
26
08
Information only
VRD 3 status
Assertion 01 (Power unit
failure)
26
08
1. Reseat the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
2. Reseat the microprocessor and heat sink.
3. Replace the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
VRD 4 status
Assertion 00 (Presence
detected)
27
08
Information only
VRD 4 status
Assertion 01 (Power unit
failure)
27
08
1. Reseat the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
2. Reseat the microprocessor and heat sink.
3. Replace the microprocessor/memory card. See “Removing a
microprocessor/memory card” on page 51 and “Replacing a
microprocessor/memory card” on page 51.
VRD 5V
Assertion 00 (Presence
detected)
28
08
Information only
Chapter 5. Diagnostics
159
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