1-12 Dell Precision 410 Systems Ser v ic e Manua l

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The following subsections provide service-related information about the
computer.

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T he 300-W system power supply can operate from an AC power source of
115 VAC at 60 Hz or 230 VAC at 50 Hz. T he system power supply provides the
DC operating voltages and currents listed in Table 1-1.
NOTE: The power supply produces DC voltages only under its loaded condi-
tion. Theref ore, when you measure these voltages, the DC po wer connectors
must be connected to thei r corresponding power inp u t connectors on the sys-
tem board or drives.
.

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The power-supply output volt ages can be measured at the back (wire side) of
the connectors without dis connect ing them. Figure s 1-10, 1-11, and 1-12 show
the wire side of the conn ectors.
1
+3.3 VDC +3.15 to +3.45 VDC 18.0 A
+5 VDC +4.75 to +5.25 VDC 35.0 A
+12 VDC +11.40 to +12.60 VDC 14.0 A
–12 VDC –10.80 to –13.20 VDC 0.3 A
–5 VDC –4.50 to –5.50 VDC 0.3 A
+5 VFP
2
+4.75 to +5.25 VDC 1.2 A
1
Maximum continuous DC output power should not exceed 300 W. Maximum combined
load on +5 VDC and +3.3 VDC cannot exceed 200 W.
2
VFP (volts flea power) — som etimes called “sta ndby power.”