Reviewing System Power; Table 1-3 Voltage And Current Limits - Sun Microsystems Sun Fire E25K Service Manual

1.5

Reviewing System Power

Check the power status by using Sun Management Center software or the
I
showenvironment
sc% showenvironment -p volts
See the showenvironment(1M) man page for further details.
TABLE 1-3
Voltage and Current
PROC Core
+1.5 V
+2.5 V
+3.3 V
+3.3 HK
+5.0 V
+12 V
-12 V
+5 V current
+3.3 V current
+1.5 V converter
1 Core voltage is processor-version dependent.
command. To review, at the command line type:
Voltage and Current Limits
Low–Minimum
-5%
x ≤ +1.4
x ≤ +2.3
x ≤ +3.0
x ≤ +3.0
x ≤ +4.75
x ≤ +11.4
x ≤ -12.6
Acceptable Range
1
Core voltage
+1.4 < x < +1.6
+2.3 < x < +2.7
+3.0 < x < +3.5
+3.0 < x < +3.5
+4.75 < x < +5.25
+11.4 < x < +12.6
-12.6 < x < -11.4
Each component must
be within + 50% of the
average of all
components in the
group.
Each component must
be within + 50% of the
average of all
components in the
group.
Each component must
be within + 50% of the
average of all
components in the
group.
Chapter 1 Guidelines, Indicators, and Nomenclature
High–Maximum
+5%
+1.6 ≤ x
+2.7 ≤ x
+3.5 ≤ x
+3.5 ≤ x
+5.25 ≤ x
+12.6 ≤ x
-11.4 ≤ x
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