The Seasonic Focus GX line got an upgrade to meet the strict ATX v3.1 and PCIe 5.1 requirements, and in today’s review I will look at the model with 850W max power.
The Seasonic Focus GX-850 V4 ATX v3.1 is (or will be) included in my best ATX v3.x & PCIe 5.x PSU picks article.
Seasonic recently updated its popular Focus GX line, making it compatible with the ATX v3.1 and PCIe 5.1 standards. The line consists of three models with capacities ranging from 750W to 1000W. All have compact dimensions, with 140mm depth. Despite the small dimensions, Seasonic fit a 135mm diameter fan to keep noise output low. Seasonic also talks about the OptiSink design, which brings a new PCB layout to the Focus V4 units, aiming to increase reliability by improving heat dissipation and airflow. According to Seasonic’s claims, the latest PCB design offers an eightfold increase in heat dissipation, keeping the operating temperatures low and increasing the PSU’s reliability.
The prices of the Focus GX V4 units are the following
- Focus GX-750: $ 129.99 (USA) / 119.90€ (Europe) / $119.99 (ROW)
- Focus GX-850: $149.99 (USA) / 139.90€ (Europe) / $139.99 (ROW)
- Focus GX-1000: $189.99 (USA) / 169.90€ (Europe) / $169.99 (ROW)
- Focus GX-750 White: $139.99 (USA) / 129.90€ (Europe) / $129.99 (ROW)
- Focus GX-850 White: $159.99 (USA) / 149.90€ (Europe) / $149.99 (ROW)
- Focus GX-1000 White: $199.99 (USA) / 179.90€ (Europe) / $179.99 (ROW)
ATX v3.1 850W PSU Reviews:
- 1st Player NGDP 850W PSU Review
- be quiet! Pure Power 12 M 850W PSU Review
- be quiet! Dark Power 13 850W PSU Review
- Corsair RM850x ATX v3.1 PSU Review
- Cooler Master GX III 850W ATX v3.0 PSU Review
- Cougar GEX X2 850W PSU Review
- Enermax Revolution D.F.12 850W PSU Review
- FSP VITA GM 850W ATX v3.1 PSU Review
- MSI MAG A850GL PCIE5 850W PSU Review
- Montech Titan Gold 850W PSU Review
- Sharkoon Rebel P20 850W ATX v3.1 PSU Review
- Super Flower Leadex VII PRO 850W ATX v3.1 PSU Review
- Thermaltake Toughpower PF3 850W PSU Review
- Thermaltake Toughpower GF A3 850W PSU Review
- Thermaltake Toughpower GF3 ARGB 850W PSU Review
- Thermaltake ToughPower GF3 850W ATX v3.0 PSU Review
- XPG Core Reactor II VE 850W PSU Review
- XPG KYBER 850W ATX v3.1 PSU Review
- XPG Core Reactor II 850W PSU Review
- Manufacturer (OEM): Seasonic
- Max Power: 850W
- Cybenetics Efficiency: [115V] Cybenetics Platinum (89-91%), [230V] Cybenetics Platinum (91-93%)
- Noise: Cybenetics A- (25-30 dB[A])
- Compliance: ATX v3.1, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C
- Alternative Low Power Mode support: Yes
- Power 12V combined: 850W
- Number of 12V rails: 1
- Power 5V + 3.3v: 100W
- Power 5VSB: 15W
- Cooling: 135mm Fluid Dynamic Bearing Fan (HA13525H12F-Z)
- Semi-Passive Operation: ✓ (Selectable)
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (2x cables), 3x PCIe 6+2 pin (3x cables), 1x PCIe 12+4 pin (600W)
- Peripheral Connectors: 8x SATA (2x cables), 3x 4-pin Molex (1x cable)
- ATX Cable Length: 610mm
- EPS Cable Length: 750mm
- 12+4 pin PCIe Cable Length: 700mm
- 6+2 pin PCIe Cable Length: 750mm
- Distance between SATA / 4-pin Molex: 150/120mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 140mm
- Weight: 1.60 kg (3.5 lb)
- Warranty: 10-years
- MSRP (excluding VAT): $140
Power Specifications
Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
Max. Power | Amps | 20 | 20 | 70 | 3 | 0.3 |
Watts | 100 | 840 | 15 | 3.6 | ||
Total Max. Power (W) | 850 |
Bad fan profile settings. Initial fan speed is too high, 940 rpm is loud. It was better before.
https://photo.coolenjoy.co.kr/data/editor/2407/13c9e3cc800d2e5e3c3cf5bafd2b5b87dcd6a2cb.jpg Aris i’ve seen this PSU and find this cybenetics QR on this PSU, did this MAXWELL Duke officialy tested by Cybenetics labs, how it’s perform ?
Nope, I don’t remember testing this unit! Basically I never heard of this brand before. Hmm, I will investigate this.
i’ve seen that the Maxwell Duke 1000W internals looks like 1stplayer NGDP 1000W https://photo.coolenjoy.co.kr/data/editor/2407/647933e3d3d50b746a68c7235da86ad64c5491bb.jpg this is your tearing down the ngdp 1000w https://hwbusters.com/wp-content/uploads/2023/09/top1-2.jpg
This new series is a disappointment