OptiPlex 7090 Ultra Setup and specifications guide
Powering the system
This system can be powered using a 90 W adapter (4.5 mm input power source) or through the USB Type-C cable connected to a display capable of providing power delivery of 90 W or greater. During normal operation, when the device is connected with a single power source (primary power source), connecting a second power source and disconnecting the primary power source will shut down the device. However, if the secondary power source is disconnected while the primary power source is connected, the system continues to operate normally.
When the device is powered with both the power sources—AC adapter and USB Type-C cable, the AC adapter is the primary power source and USB Type-C is the secondary power source. Disconnecting the AC adapter will shut down the system. If the secondary power source is disconnected, the system continues to operate normally.
NOTE Hotswap between the AC adapter and USB Type-C power source is not supported.
| Primary Power Source | Secondary power source connected | Power source disconnected | Operation | ||
|---|---|---|---|---|---|
| AC Adapter | Rear Type-C | AC Adapter | Shut down | ||
| AC Adapter | Rear Type-C | Rear Type-C | Normal operation | ||
| Rear Type-C | AC Adapter | AC Adapter | Normal operation | ||
| Rear Type-C | AC Adapter | Rear Type-C | Shut down | ||
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