Enermax Digifanless
550W
Why this rating
Every criterion, its status, and the evidence behind it.
Evidence
- PASS
- 9
- WARN
- 1
- FAIL
- 0
- N/D
- 12
Ratings disagree by 2 steps
The engine rates this unit higher than the imported list, usually because the list de-tiers units that lack independent testing while the engine records that as low confidence instead.
Architecture
- PASS
Resonant primary stage (LLC)weight 3
- PASS
Synchronous rectificationweight 2
- PASS
Independent DC-DC converters for +5V and +3.3Vweight 3
- N/D
PFC type is not documented; APFC assumed only when statedweight 2
Standards
- WARN
ATX 2.x generation platformweight 2
- PASS
Full-range input (~100-240 VAC)weight 2
Efficiency
- PASS
Platinum class efficiencyweight 2
Components
- N/D
Capacitor temperature rating is not documentedweight 2
- N/D
Fan bearing type is not documentedweight 1.5
Protections
- N/D
Protection set has not been verified independentlyweight 3
- N/D
OCP declaration has not been verifiedweight 2
- N/D
OTP declaration has not been verifiedweight 1.5
- N/D
Protection trip points have not been measuredweight 2
Electrical performance
- N/D
No qualitative electrical assessment on recordweight 3
- N/D
No ripple measurement on recordweight 3
- N/D
No voltage regulation measurement on recordweight 2
- N/D
No transient response measurement on recordweight 2
Evidence
- PASS
Built by CWTweight 1.5
- PASS
Platform Custom (Enermax designedweight 1.5
- PASS
Independent testing on record (Claims necessary protections but weren't evaluated in Aris' testing, OTP was kicked in during voltage regulation testing.)weight 2
Claims necessary protections but weren't evaluated in Aris' testing, OTP was kicked in during voltage regulation testing.(editorial note)
Warranty and support
- N/D
Warranty length is not documentedweight 1.5
Safety
- PASS
No safety incidents or false claims on recordweight 3
How the tier was reached
- MET
Tier A - reference classspec 12.9
- Weighted pass ratio 95% with 1 warning(s)
Missing evidence
These criteria could not be resolved. They lower the confidence index rather than count against the unit.
- Active power factor correction
- Electrolytic capacitor temperature rating
- Fan bearing type
- Protection coverage
- Over-current protection declared
- Over-temperature protection declared
- Protection trip points
- Measured electrical behaviour
- +12V ripple
- Voltage regulation
- +12V transient response
- Manufacturer warranty
Specification
Values carry the source they came from; unknowns stay unknown.
- Capacities
- 550 W
- Form factor
- ATX
- ATX generation
- ATX 2.x
- Efficiency class
- Platinum
- AC input
- Full range (~100–240 V)
- Cable modularity
- Full
- Introduced
- 2015
Electrical architecture
What is actually inside, when it is known.
- Primary stage
- LLC
- Secondary rectification
- SR
- Minor rail regulation
- DC-DC
- Built by
- CWT
- Platform
- Custom (Enermax designed
Reviewer notes
Free text from the source, used by the engine as signals.
Claims necessary protections but weren't evaluated in Aris' testing, OTP was kicked in during voltage regulation testing.
- Independent laboratory testing referencedyesconfidence 60%
Where this data comes from
Each field records which source supplied it and how sure we are.
| Field | Source | Confidence | Captured |
|---|---|---|---|
| oem | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| intro_year | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| modularity | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| atx_version | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| form_factor | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| input_range | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| platform | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| editorial_tier | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| efficiency_class | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| primary_topology | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| minor_rail_regulation | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
| secondary_rectification | PSU Tier List (seed workbook)trust 70 | 70% | workbook import |
Primary source: PSU Tier List (seed workbook) (row 505). Community-maintained tier list imported as the seed data set. Ratings from this source are shown as the published tier; the Tier Engine computes its own rating separately.