SAMA G
650/750W
3 known revisions of this model
Manufacturers revise a platform without changing the model name. Each row below is a distinct revision with its own rating.
Why this rating
Every criterion, its status, and the evidence behind it.
Evidence
- PASS
- 9
- WARN
- 0
- FAIL
- 2
- N/D
- 11
Ratings disagree by 10 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
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
- FAIL
Protection trip points are set poorly (The OCP and OPP triggering points are set too high on all rails.)weight 2
The OCP and OPP triggering points are set too high on all rails.(editorial note)
Electrical performance
- FAIL
Electrical performance criticised: Mediocre load regulation on the minor rails, and poor excursion response in the 200% test.weight 3
Mediocre load regulation on the minor rails, and poor excursion response in the 200% test.(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 RSYweight 1.5
- PASS
Platform AO174weight 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
- — Protection trip points: Protection trip points are set poorly (The OCP and OPP triggering points are set too high on all rails.)
- — Measured electrical behaviour: Electrical performance criticised: Mediocre load regulation on the minor rails, and poor excursion response in the 200% test.
- — Too many failed criteria for this tier (2)
- MISSED
Tier B - strong mainstreamspec 12.10
- — Protection trip points: Protection trip points are set poorly (The OCP and OPP triggering points are set too high on all rails.)
- — Measured electrical behaviour: Electrical performance criticised: Mediocre load regulation on the minor rails, and poor excursion response in the 200% test.
- — Too many failed criteria for this tier (2)
- MISSED
Tier C - adequatespec 12.11
- — Protection trip points: Protection trip points are set poorly (The OCP and OPP triggering points are set too high on all rails.)
- — Measured electrical behaviour: Electrical performance criticised: Mediocre load regulation on the minor rails, and poor excursion response in the 200% test.
- — Too many failed criteria for this tier (2)
- MISSED
Tier D - basicspec 12.12
- — Measured electrical behaviour: Electrical performance criticised: Mediocre load regulation on the minor rails, and poor excursion response in the 200% test.
- 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
- +12V ripple
- Voltage regulation
- +12V transient response
- Independent laboratory evidence
- Manufacturer warranty
Specification
Values carry the source they came from; unknowns stay unknown.
- Capacities
- 650 W750 W
- Form factor
- ATX
- ATX generation
- ATX 3.x
- Efficiency class
- Gold
- AC input
- Full range (~100–240 V)
- Cable modularity
- Full
- Introduced
- 2025
Reviewer notes
Free text from the source, used by the engine as signals.
Mediocre load regulation on the minor rails, and poor excursion response in the 200% test. The OCP and OPP triggering points are set too high on all rails.
- Electrical performance criticised by the reviewernoconfidence 60%
- Protection trip points criticisednoconfidence 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 847). 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.
Built on the same platform
Different badge, same electrical design.