PCCooler/CPS KN
750/850/1000W
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 1 step
The engine rates this unit lower than the imported list, driven by the criteria listed below.
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
- PASS
Declares ATX 3.x complianceweight 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
- WARN
Rifle bearing fanweight 1.5
Poweryear rifle bearing fan.(editorial note)
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 Jiumengweight 1.5
- PASS
Platform JM-880weight 1.5
- N/D
No independent laboratory report linked yetweight 2
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
- — Fan bearing type: Rifle bearing fan
- MET
Tier B - strong mainstreamspec 12.10
- Weighted pass ratio 97% 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
- Protection coverage
- Over-current protection declared
- Over-temperature protection declared
- Protection trip points
- Measured electrical behaviour
- +12V ripple
- Voltage regulation
- +12V transient response
- Independent laboratory evidence
- Manufacturer warranty
Specification
Values carry the source they came from; unknowns stay unknown.
- Capacities
- 750 W850 W1000 W
- Form factor
- ATX
- ATX generation
- ATX 3.x
- Efficiency class
- Gold
- AC input
- Full range (~100–240 V)
- Cable modularity
- Full
- Introduced
- 2024
Reviewer notes
Free text from the source, used by the engine as signals.
Poweryear rifle bearing fan. Decent electrical performance. Ripple on the minor rails, while within spec, can get a bit high under heavy load.
- Rifle bearing fan reportedRifleconfidence 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 785). 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.
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