IBM BladeCenter PN41, Problem Determination And Service Manual, Page: 65 / 88

Table 4. Voltages (continued)
Source Value Critical
Base Vcc 1.2 V +1.19 (+1.13 , +1.26)
Base Vcc 1.3 V +1.31 (+1.22 , +1.35)
Base Vcc 1.5 V +1.50 (+1.42 , +1.56)
Base Vcc 1.8 V +1.77 (+1.70 , +1.88)
Base Vcc 12 V +12.05 (+9.94 , +13.92)
Base Vcc 2.5 V +2.52 (+2.37 , +2.62)
Base Vcc 3.3 V +3.32 (+3.13 , +3.46)
Base Vcc PX1 1.8 +1.76 (+1.70 , +1.88)
Base Vcc PX2 1.8 +1.77 (+1.70 , +1.88)
Base Vtt PAX V +1.66 (+1.48 , +1.81)
Base Vtt QDR V +0.74 (+0.67 , +0.81)
HSDC 1.0 V Dig +0.99 (+0.94 , +1.05)
HSDC 1.8 V Dig +1.79 (+1.70 , +1.88)
HSDC 12 V In +12.21 (+10.08 , +14.10)
HSDC 2.5 V Dig +2.50 (+2.37 , +2.62)
HSDC 5 V Dig +4.96 (+4.49 , +5.49)
HSDC N 1.5 V +1.48 (+1.42 , +1.56)
HSDC N 3.3 V +3.29 (+3.13 , +3.46)
HSDC N MGT 1.0 +0.99 (+0.94 , +1.05)
HSDC N PLL 1.2 +1.19 (+1.13 , +1.26)
HSDC N Vtt 1.2 +1.19 (+1.13 , +1.26)
HSDC S 1.5 V +1.49 (+1.42 , +1.56)
HSDC S 3.3 V +3.27 (+3.13 , +3.46)
HSDC S MGT 1.0 +0.98 (+0.94 , +1.05)
HSDC S PLL 1.2 +1.19 (+1.13 , +1.26)
Intermittent problems
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, Type 3020,” on page 23 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.
Symptom Action
A problem occurs only
occasionally and is difficult to
diagnose.
1. Make sure that:
v When the DPI blade is turned on, air is flowing from the rear of the
BladeCenter unit at the blower grille. If there is no airflow, the blower is not
working. This causes the DPI blade to overheat and shut down.
v
The SAS hard disk drives are configured correctly.
2. Check the Alarms log (see “Error logs” on page 40).
3. See “Solving undetermined problems” on page 60.
Chapter 5. Diagnostics
53