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Silver rectangular PSU with Dell label and rear fan grille

DELL

DELL D685EF-01 685W Power Supply for Precision T5810 T7810 T7910

SKU CH-8ZTF-PGVN9 MPN D685EF-01

685W PSU replaces or upgrades power in Precision T5810, T7810 and T7910 workstations

  • Product typePower Supply
  • 685 W output powers demanding Precision workstation configurations
  • Direct replacement for Dell part CYP9P fits T5810 T7810 T7910 models
  • Stable power delivery protects high-performance processors and graphics cards
  • Engineered for reliable operation in professional workstation environments
  • New unit ready for immediate upgrade or repair installations

Workstation power supply for Precision T5810 T7810

This 685W unit is built specifically for Dell Precision T5810, T7810 and T7910 workstations. It replaces the original CYP9P part and delivers the power envelope those chassis were designed around. Buyers who need a supply for a different form factor or a higher wattage rating cannot use this unit.

Steady 685W delivery under continuous load

The supply is rated to sustain its full 685W output while the workstation runs demanding compute tasks over long periods. Voltage rails remain stable when multiple drives, memory modules and add-in cards draw power simultaneously. It is not suited for systems that require more headroom than the rated capacity provides.

Direct-fit replacement with native connectors

The unit matches the mechanical mounting and wiring harness of the factory PSU, so installation uses the existing screw points and cable routing. All required motherboard, CPU and peripheral leads are present in the correct lengths. Builders who need modular cabling or non-standard pinouts will find this supply does not accommodate those requirements.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $113.99
Cheaper than about 61% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typePower Supply

Questions about this item

How loud and hot does the 685W unit get when the Precision T5810 runs full-tilt all day?

The PSU is built for continuous workstation loads; its internal fan ramps only as needed to keep temperatures in check, so noise stays at typical workstation levels even during extended render or compute sessions.

What must already be in the chassis for this D685EF-01 to install and power on?

It fits directly into the standard Precision T5810, T7810 or T7910 bay and connects to the existing motherboard power headers — no extra cables, adapters or mounting brackets are required.

Will the CYP9P supply work reliably alongside the original processors, memory and storage already in a T7910?

Yes — the 685W capacity matches the factory spec for the T7910, so it delivers the same stable rails the original components were designed for without any reconfiguration.

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