Rosewill Photon
1200W
Why this rating
Every criterion, its status, and the evidence behind it.
Evidence
- PASS
- 9
- WARN
- 1
- FAIL
- 1
- N/D
- 11
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
Gold 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
- FAIL
Electrical performance criticised: While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.weight 3
While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.(editorial note)
- 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 High Powerweight 1.5
- PASS
Platform Astro GD HPJweight 1.5
- PASS
Independent testing on record (While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.)weight 2
While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.(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
- MISSED
Tier A - reference classspec 12.9
- — Measured electrical behaviour: Electrical performance criticised: While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.
- — Too many failed criteria for this tier (1)
- MISSED
Tier B - strong mainstreamspec 12.10
- — Measured electrical behaviour: Electrical performance criticised: While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.
- — Too many failed criteria for this tier (1)
- MISSED
Tier C - adequatespec 12.11
- — Measured electrical behaviour: Electrical performance criticised: While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.
- — Too many failed criteria for this tier (1)
- MISSED
Tier D - basicspec 12.12
- — Measured electrical behaviour: Electrical performance criticised: While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.
- Insufficient evidence, unknown platform or unsatisfactory architecture (spec 12.13)
- Modifiers do not apply to E and F
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
- +12V ripple
- Voltage regulation
- +12V transient response
- Manufacturer warranty
Specification
Values carry the source they came from; unknowns stay unknown.
- Capacities
- 1200 W
- Form factor
- ATX
- ATX generation
- ATX 2.x
- Efficiency class
- Gold
- AC input
- Full range (~100–240 V)
- Cable modularity
- Full
- Introduced
- 2014
Electrical architecture
What is actually inside, when it is known.
- Primary stage
- LLC
- Secondary rectification
- SR
- Minor rail regulation
- DC-DC
- Built by
- High Power
- Platform
- Astro GD HPJ
Reviewer notes
Free text from the source, used by the engine as signals.
While the power supply is rated for 40C, testing done by Aris (who tests at 45C), shows excessive ripple above the ATX spec at 110%/CL2 load.
- Electrical performance criticised by the reviewernoconfidence 60%
- 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 834). 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.