The Thermaltake GF3 with 850W max energy gives good efficiency, however not excessive sufficient for it to make our record of the finest PSUs. Nonetheless, it has excessive construct high quality and is among the first 850W PSUs providing ATX 3.0 and PCIe 5.0 compatibility. The Corsair RM850x and the EVGA 850 G7, which obtain notably larger efficiency, will not be ATX 3.0 prepared and should not have 12VHPWR connectors.
Thermaltake lately launched the GF3 line, which consists of ATX 3.0 and PCIe 5.0 prepared PSUs. On this evaluation, we’ll take a look at the mannequin with 850W capability, outfitted with a 300W 12VHPWR connector, on paper at the least, as a result of in actuality, the connector’s sense pins are set for a max load of 600W. Channel Properly Know-how supplies the platforms for all GF3 fashions however the 1350W and 1650W ones.
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The GF3 850 is rated Gold by 80 Plus and Cybenetics and has a Cybenetics A- noise ranking. The absolutely modular cable design is a should on this worth vary ($120-130) and it makes use of a fluid dynamic bearing fan to make sure the absence of issues in the course of the prolonged, ten-year guarantee. Lastly, its dimensions are regular, with a 160 mm depth.
Specs
| Producer (OEM) | CWT |
| Max. DC Output | 850W |
| Effectivity | 80 PLUS Gold, Cybenetics Gold (87-89%) |
| Noise | Cybenetics A- (25-30 dB[A]) |
| Modular | ✓ (absolutely) |
| Intel C6/C7 Energy State Help | ✓ |
| Working Temperature (Steady Full Load) | 0 – 40°C |
| Over Voltage Safety | ✓ |
| Beneath Voltage Safety | ✓ |
| Over Energy Safety | ✓ |
| Over Present (+12V) Safety | ✓ |
| Over Temperature Safety | ✓ |
| Quick Circuit Safety | ✓ |
| Surge Safety | ✓ |
| Inrush Present Safety | ✓ |
| Fan Failure Safety | ✗ |
| No Load Operation | ✓ |
| Cooling | 135mm Fluid Dynamic Bearing Fan (HA13525H12SF-Z) |
| Semi-Passive Operation | ✓(selectable) |
| Dimensions (W x H x D) | 150 x 85 x 160mm |
| Weight | 1.66 kg (3.66 lb) |
| Kind Issue | ATX12V v3.0, EPS 2.92 |
| Various Low Energy Mode (ALPM) suitable | ✓ |
| Guarantee | 10 Years |
Energy Specs
| Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
| Max. Energy | Amps | 22 | 22 | 70.8 | 3 | 0.3 |
| Watts | 120 | 849.6 | 15 | 3.6 | ||
| Complete Max. Energy (W) | 850 |
Cables & Connectors
| Description | Cable Rely | Connector Rely (Complete) | Gauge | In Cable Capacitors |
|---|---|---|---|---|
| ATX connector 20+4 pin (600mm) | 1 | 1 | 16AWG | No |
| 4+4 pin EPS12V (700mm) | 1 | 1 | 16AWG | No |
| 8 pin EPS12V (700mm) | 1 | 1 | 16AWG | No |
| 6+2 pin PCIe (500mm+150mm) | 2 | 4 | 16-18AWG | No |
| 12+4 pin PCIe (610mm) (300W) | 1 | 1 | 16-24AWG | No |
| SATA (500mm+150mm+150mm+150mm) | 3 | 12 | 18AWG | No |
| 4-pin Molex (500mm+150mm+150mm+150mm) | 1 | 4 | 18AWG | No |
| FDD Adapter (100mm) | 1 | 1 | 22AWG | No |
There are sufficient cables and connectors to cowl the unit’s most energy effectively. The one 12VHPWR connector makes the distinction in comparison with the prevailing 850W models. Any such connector is new, however quickly sufficient, each PSU with over 450W capability can have one.
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Element Evaluation
We strongly encourage you to take a look at our PSUs 101 article, which supplies beneficial details about PSUs and their operation, permitting you to higher perceive the parts we’re about to debate.
| Basic Information | – |
| Producer (OEM) | CWT |
| Platform | CSZ |
| PCB Kind | Double Sided |
| Major Facet | – |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Safety | 1x NTC Thermistor SCK-075 (7 Ohm) & Relay |
| Bridge Rectifier(s) | 2x Yangjie Digital GBU1506 (600V, 15A @ 100°C) |
| APFC MOSFETs | 2x STMicroelectronics STF33N60M2 (600V, 16A @ 100°C, Rds(on): 0.125Ohm) |
| APFC Enhance Diode | 1x On Semiconductor FFSP0865A (650V, 8A @ 155°C) |
| Bulk Cap(s) | 1x Rubycon (420V, 680uF, 2,000h @ 105°C, MXE) |
| Fundamental Switchers | 2x On Semiconductor |
| APFC Controller | Champion CM6500UNX & CM03X |
| Resonant Controller | Champion CU6901VAC |
| Topology |
Major aspect: APFC, Half-Bridge & LLC converter Secondary aspect: Synchronous Rectification & DC-DC converters |
| Secondary Facet | – |
| +12V MOSFETs | 6x Worldwide Rectifier IRFH7004PbF (40V, 164A @ 100°C, Rds(on): 1.4mOhm) |
| 5V & 3.3V | DC-DC Converters: 2x UBIQ QN3107M6N (30V, 70A @ 100°C, Rds(on): 2.6mOhm) & 2x UBIQ QM3054M6 (30V, 61A @ 100°C, Rds(on): 4.8mOhm) PWM Controller(s): uPI-Semi uP3861P |
| Filtering Capacitors |
Electrolytic: 3x Nichicon (2-5,000h @ 105°C, HD), 4x Nichicon (4-10,000h @ 105°C, HE), 1x Rubycon (2-10,000h @ 105°C, YXF), 1x Nippon Chemi-Con (4-10,000h @ 105°C, KY), 1x Nippon Chemi-Con (4-10,000h @ 105°C, KYA) |
| Supervisor IC | Weltrend WT7502R |
| Fan Controller | Microchip PIC16F1503 |
| Fan Mannequin | Hong Hua HA13525H12SF-Z (135mm, 12V, 0.5A, Fluid Dynamic Bearing Fan) |
| 5VSB Circuit | – |
| Rectifier | 1x PS1045L SBR (45V, 10A) |
| Standby PWM Controller | On-Shiny OB2365T |
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CWT supplies the platform, and its code title is CSZ. This isn’t a brand-new platform, however fairly a modified design to supply the specified ATX 3.0 compatibility and a 12VHPWR connector. The elements that CWT used, after TT’s directions, are of top quality. The PCB is giant sufficient to permit for good airflow, however usually CWT used small warmth sinks, with the secondary aspect with none. With the correct fan pace profile, this would possibly not have an effect on the platform’s reliability.
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The transient/EMI filter is full and does a good job. Surge safety is obtainable by means of an MOV, and inrush safety is dealt with by an NTC thermistor and bypass relay combo.
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The pair of bridge rectifiers can rectify as much as 30A.
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The APFC converter makes use of two STMicroelectronics FETs and an On Semiconductor enhance diode. The majority cap is by Rubycon, and its capability is barely sufficient to permit for greater than 17 ms hold-up time.
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The primary FETs are put in in a half-bridge topology. An LLC resonant converter can also be used for larger effectivity.
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The 12V FETs are put in on a vertical board subsequent to the primary transformer for decrease energy losses. The minor rails are generated by means of a pair of DC-DC converters.
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The electrolytic filtering caps are of top quality. Most polymer caps are by lower-cost manufacturers, however these caps are extremely tolerant to harsh situations.
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The standby PWM controller is an On-Shiny OB2365T.
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We discover a number of polymer caps on the modular PCB, for ripple filtering functions.
The primary supervisor IC is a Weltrend WT7502R. It’s put in on the identical board with a Microchip PIC16F1503, which controls the fan’s pace.
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Soldering high quality is typical CWT, that’s good.
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The cooling fan is by Hong Hua and it makes use of a fluid dynamic bearing, so it ought to work for a pleasant, very long time.
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