Description
Core Product Summary
The Dell D685EF-00 is a 685 W internal power supply for Dell Precision tower workstations, principally the Precision T3610 and T5610. It is built on the DPS-685AB A platform and belongs to the Dell YP00X part-number family (YP00X / 0YP00X / CN-0YP00X), which procurement teams can use to cross-check inventory against the system service tag.
The unit accepts wide-range AC input of 100–240 V at 50–60 Hz, so the same part operates on different regional mains supplies without a voltage selector. It distributes power across five dedicated +12 V rails (labeled +12VA through +12VE, 18 A each), plus −12 V (0.5 A) and a +VSB standby output (4.0 A), and it is designed as a hot-swappable, redundant PSU — a meaningful feature for workstations that must stay in service during power-supply replacement. The construction reaches 80 Plus Gold efficiency, and the physical envelope is approximately 160 × 63 × 225 mm. When ordering, confirm the existing unit’s wattage, mounting pattern, and cable layout match, since visually similar variants in this platform serve different Precision generations.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product type | Internal workstation power supply (PSU) |
| Model / reference | D685EF-00 (DPS-685AB A platform) |
| Related Dell part numbers | YP00X, 0YP00X, CN-0YP00X; related model F685EF-00 |
| Maximum output power | 685 W |
| AC input | 100–240 V, 50–60 Hz, 9.7 A |
| DC outputs | ‘+12VA / +12VB / +12VC / +12VD / +12VE, 18 A each; −12 V, 0.5 A; +VSB, 4.0 A |
| Efficiency rating | 80 Plus Gold |
| Design | Hot-swappable; redundant-capable |
| Dimensions | 160 mm × 63 mm × 225 mm |
| Primary compatible systems | Dell Precision T3610, T5610 |
Engineering Selection Highlights
- Exact-system scope: The D685EF-00 is specified for the Precision T3610 and T5610 chassis. Other Precision towers in this era use different 685 W revisions (e.g., D685EF-01 for T5810/T7810-class systems), so the suffix must match the chassis generation.
- Five separate +12 V rails: Multi-rail distribution limits fault current per rail and matters when planning high-draw GPU or storage configurations; per-rail 18 A capability should be checked against the add-in card budget.
- Wide-range 100–240 V input: The same unit works on both 120 V and 230 V mains, which simplifies spares planning for mixed-region fleets — no voltage-selection step.
- Hot-swappable redundant form factor: In T3610/T5610 systems configured with redundant supplies, a failed unit can be exchanged without powering down the workstation, reducing unplanned downtime for service operations.
- 80 Plus Gold efficiency: Gold-level efficiency reduces waste heat inside the tower compared with lower-tier units, which supports cooler chassis operation under sustained workstation loads.
- Physical envelope 160 × 63 × 225 mm: Confirm the replacement matches the original PSU’s shape and mounting pattern; an identical wattage rating alone is not sufficient proof of fit.
D685EF-00
D685EF-00
Detailed Product Overview
The D685EF-00 is the 685 W power supply revision that Dell pairs with the Precision T3610 and T5610 workstations, and identifying it correctly starts with the suffix. Dell reused the “685EF” designation across several Precision generations: the -00 revision (with its YP00X / 0YP00X part numbers and DPS-685AB A platform reference) belongs to the T3610/T5610 generation, while the -01 revision serves the later T5810/T7810 family. A unit that looks identical on the outside can therefore be the wrong part for a given chassis, which is why the label check — model number, DP/N part number, and CN- code — is the safest procurement verification step.
Electrically, the supply is engineered around five independent +12 V rails rather than a single high-capacity rail. For a system integrator, this means each rail delivers up to 18 A and serves a defined load group inside the workstation. When a machine is being reconfigured with additional drives or a more power-demanding graphics card, the available headroom per rail, not only the 685 W total, determines whether the configuration is supportable. The −12 V output (0.5 A) covers legacy serial-interface requirements, and the +VSB standby rail (4.0 A) keeps wake functions and system-management features powered when the workstation is shut down.
The wide-range 100–240 V AC input removes a classic deployment constraint. The same part number can serve a machine in a 120 V region and one on 230 V mains, so a single spare can cover an international fleet without regional variants.
The hot-swappable, redundant-capable construction is the most distinctive design feature. Precision T3610/T5610 chassis support dual power supplies, and in that configuration a failed D685EF-00 can be pulled and replaced without interrupting the running system. For organizations that use these workstations for long-running computation, this converts a PSU failure from an outage into a routine swap.
Efficiency at the 80 Plus Gold level matters in a tower workstation mainly as a thermal and acoustic factor: less input power is dissipated as heat, so chassis fans run against a smaller heat load. Finally, the physical install is conventional for a tower PSU, but the practical failure mode in procurement is ordering by wattage alone — the correct approach is to match the original unit’s revision, part number, and connector layout to the target chassis before ordering.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Workstation chassis | Dell Precision T3610, T5610 | Other Precision generations use different 685 W revisions; verify by service tag |
| Part-number cross-match | YP00X / 0YP00X / CN-0YP00X | Use the CN- number on the original unit’s label to confirm identity |
| Platform reference | DPS-685AB A | Matches the D685EF-00 revision; the -1/-2 variants serve other chassis |
| Mains supply | 100–240 V AC, 50–60 Hz | No input-voltage selector required |
| Redundant operation | Hot-swappable PSU design | Relevant where the chassis holds dual supplies |
| Installation fit | Must match original PSU form factor and cable routing | Compare connector layout before ordering; wattage alone is not proof of compatibility |
Dimensions, Mounting & Connection Notes
- Dimensions: approximately 160 mm × 63 mm × 225 mm.
- Mounting: internal tower PSU; the replacement must match the original unit’s mounting pattern and rear-panel cutout.
- AC connection: IEC-style mains inlet fed from a 100–240 V, 50–60 Hz source.
- Replacement procedure: disconnect AC, remove the securing screws at the rear of the chassis, and lift the unit out while ensuring internal cabling is not snagged on components; reverse to install.
- Verification before ordering: compare the label of the original unit (model D685EF-00 / F685EF-00, part YP00X family) and confirm wattage, physical shape, and connector layout are identical.
Applications & System Role
Within the Precision T3610 and T5610 tower architecture, the D685EF-00 sits at the power-conversion stage: it converts regional AC mains into the regulated +12 V multi-rail, −12 V, and standby outputs that feed the workstation’s board, processors, memory, storage, and add-in cards. Its hot-swappable design gives it a second role in serviceability: in redundant configurations, it is the field-replaceable element that can be exchanged while the workstation continues to run on its partner supply. The multi-rail +12 V structure supports the power-hungry CPU and graphics configurations these dual-socket-capable workstations are built for. Typical fit scenarios are workstation fleets in engineering, design, and analysis environments where a failed PSU would otherwise take a production machine out of service, and where a correct-revision spare part keeps repair turnaround short.
FAQ
What is the Dell D685EF-00?
It is a 685 W internal power supply for Dell Precision tower workstations, built on the Delta DPS-685AB A platform and identified by Dell part numbers YP00X / 0YP00X / CN-0YP00X.
Which Dell systems does the D685EF-00 fit?
It is specified for the Dell Precision T3610 and T5610 workstations. Later Precision generations use the D685EF-01 and related revisions, so the suffix matters when ordering.
What are its key electrical specifications?
Maximum output is 685 W from 100–240 V AC (50–60 Hz) input, delivered as five +12 V rails at 18 A each, −12 V at 0.5 A, and a +VSB standby output at 4.0 A.
Is the D685EF-00 hot-swappable?
Yes. It is designed as a hot-swappable, redundant-capable PSU, allowing replacement without powering down the workstation in dual-supply configurations.
What efficiency rating does it carry?
The unit reaches the 80 Plus Gold efficiency level.
How do I confirm this is the correct replacement part?
Compare the original unit’s label: model D685EF-00 (or F685EF-00), the DP/N or CN- part number, and the DPS-685AB A platform reference — then verify the wattage, physical shape, and connector layout match the target chassis.
What are its physical dimensions?
Approximately 160 mm × 63 mm × 225 mm, in a standard internal tower-PSU mounting arrangement.
Which part numbers are cross-referenced with this model?
YP00X, 0YP00X, and CN-0YP00X are the associated Dell part numbers for the D685EF-00; F685EF-00 appears as a related model designation for the same platform.
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