Dell OptiPlex NX1 - Manual (Page 20)

1-8 Dell OptiPlex GX1/GX1p Managed PC and OptiPlex NX1 Net PC Systems Service Manual
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The OptiPlex GX1/GX1p and OptiPlex NX1 systems are equipped with a
switch-selectable (115/230-VAC) UPS that can operate from standard AC power
outlets in the U.S. and all international countries. The power supply used in the
midsize and mini tower chassis configurations is a higher-capacity power sup-
ply than that used in the low-profile and OptiPlex NX1 chassis configurations.
Dell OptiPlex GX1/GX1p and OptiPlex NX1 systems have a special power sup-
ply that provides trickle (“flea”) power to support the Wakeup On LAN feature
when computer power is off.
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Figure 1-2 shows the front-panel features for the four chassis types;
Figures 1-3 through 1-6 show internal features of the four chassis types.