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PSU Guide

ASUS ROG THOR Platinum II

850W

PlatinumATXATX 3.xFull modular2023
APublished tier

Why this rating

Every criterion, its status, and the evidence behind it.

APublished rating
B+Engine rating

Evidence

74%Limited lab data
PASS
9
WARN
0
FAIL
0
N/D
13
Rules v1.0.0

Ratings disagree by 2 steps

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

    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 Seasonicweight 1.5

  • PASS

    Platform Focus Platinum ATX 3.0weight 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

  1. MET

    Tier A - reference classspec 12.9

  • Weighted pass ratio 100% with no warnings
  • Capped at B+: confidence 74% does not support a higher rating

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
  • Independent laboratory evidence
  • Manufacturer warranty

Specification

Values carry the source they came from; unknowns stay unknown.

Capacities
850 W
Form factor
ATX
ATX generation
ATX 3.x
Efficiency class
Platinum
AC input
Full range (~100–240 V)
Cable modularity
Full
Introduced
2023

Electrical architecture

What is actually inside, when it is known.

Primary stage
LLC
Secondary rectification
SR
Minor rail regulation
DC-DC
Built by
Seasonic

Where this data comes from

Each field records which source supplied it and how sure we are.

FieldSourceConfidenceCaptured
oemPSU Tier List (seed workbook)trust 7070%workbook import
intro_yearPSU Tier List (seed workbook)trust 7070%workbook import
modularityPSU Tier List (seed workbook)trust 7070%workbook import
atx_versionPSU Tier List (seed workbook)trust 7070%workbook import
form_factorPSU Tier List (seed workbook)trust 7070%workbook import
input_rangePSU Tier List (seed workbook)trust 7070%workbook import
platformPSU Tier List (seed workbook)trust 7070%workbook import
editorial_tierPSU Tier List (seed workbook)trust 7070%workbook import
efficiency_classPSU Tier List (seed workbook)trust 7070%workbook import
primary_topologyPSU Tier List (seed workbook)trust 7070%workbook import
minor_rail_regulationPSU Tier List (seed workbook)trust 7070%workbook import
secondary_rectificationPSU Tier List (seed workbook)trust 7070%workbook import

Primary source: PSU Tier List (seed workbook) (row 183). 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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