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Rectangular ATX power supply unit, matte metal finish, standard mounting holes and rear fan grille

Thinkstar

Thinkstar 550W ATX Power Supply for Dell XPS 8910 8920 Delta DPS-460DB-15

SKU CH-F9CQ-W3RCY

550W ATX replacement power supply fits Dell XPS 8910 and 8920 desktops

  • TypeATX
  • 550 W output powers Dell XPS 8910 and 8920 systems
  • Direct replacement for Delta DPS-460DB-15 unit
  • ATX12V form factor fits standard chassis dimensions
  • New condition ensures full rated performance from install
  • Compact 3.400 x 5.500 x 5.900 size suits tight builds

Direct Dell XPS 8910/8920 replacement

This 550W ATX power module is built to replace the Delta DPS-460DB-15 unit in Dell XPS 8910 and 8920 desktops. It matches the original ATX12V form factor so it fits the existing chassis mounting points. The unit is supplied new and unbranded, ready for immediate installation.

Standard ATX thermals for mid-tower chassis

The supply uses conventional ATX cooling layout with a single exhaust fan drawing air through the enclosure. Under typical desktop loads the fan runs at low speed and noise stays at background-office level. Power delivery is rated at 550W continuous, matching the 460DB-15 replacement specification.

No cables or software included

Only the power module itself is provided; all ATX, CPU and peripheral cables must be reused from the original Dell unit. There is no bundled monitoring software or configuration utility. Buyers who need extra PCIe connectors or modular cables for a custom build should look elsewhere.

Highlights

  • 550 W output powers Dell XPS 8910 and 8920 systems
  • Direct replacement for Delta DPS-460DB-15 unit
  • ATX12V form factor fits standard chassis dimensions
  • New condition ensures full rated performance from install
  • Compact 3.400 x 5.500 x 5.900 size suits tight builds

Specifications

TypeATX

Questions about this item

How do I install this 550W ATX power supply in a Dell XPS 8910 and what step is often missed?

Remove the side panel, disconnect all cables from the old Delta DPS-460DB-15 unit, unscrew the four mounting screws, slide the new RP-460DB-55 unit into the chassis, secure the screws, reconnect the 24-pin motherboard and CPU power cables, then verify the voltage switch is set to your local mains setting before closing the case.

What maintenance or replacement will this power module need later?

The internal cooling fan is the only moving part; clean dust from the intake grille every six to twelve months using compressed air, and replace the entire unit if the fan becomes noisy, voltages drift out of spec, or the system fails to start under load.

What limit appears first when this 550W supply runs at full load for long periods?

The 550W maximum output rating is the primary limit; sustained loads near this level will cause the internal temperature to rise until the over-temperature protection triggers a shutdown, so keep the case airflow clear and avoid continuous operation at the rated ceiling.

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