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The Seasonic PRIME GX features 80+ Gold certification, a 100% modular design and allows fanless operation below 40% load. It features a quiet 135mm fan and rich connectivity to power the most powerful components with reliable and stable voltage.
Featuring the latest technological advances, the PRIME GX maintains the output voltage within a very tight range, achieving load regulation of less than 0.5% (MTLR). This impressive power performance and stability make this power supply an ideal choice for high performance systems.
The 135mm high performance fan in this power supply is designed to take advantage of the impact absorption effects of oil. It is extremely reliable and generates much less operating noise and heat than ball-bearing fans. Lubrication of the bearing surface reduces friction and vibration, thus reducing overall energy consumption. Due to the effortless and quieter rotations and the robust construction, this proven fan technology also increases the life of the fan.
This Seasonic PRIME power supply features the Premium Hybrid Fan Control system, which minimises the noise generated by the fan. Below 40% load, the unit is in 0dB (fanless) mode and then the fan turns on in proportion to the load of the configuration.
Seasonic engineers have implemented a new internal design, where instead of cables, the back panel and the PCB (Printed Circuit Board) are connected by a copper plate. This solution not only reduces the risks during assembly, but also improves the quality and reliability of the power output.
Select your criteria
General information |
Product name |
Seasonic PRIME GX-850 |
Brand |
Seasonic | |
Model |
PRIME-GX-850 | |
Power and Efficiency |
Power |
850 W |
80 PLUS certification |
Yes | |
80 PLUS certification |
80 PLUS Gold | |
Connectivity |
Modular |
Yes |
Modularity |
100% modular | |
Power connector(s) |
2 X +12V (Power supply P8 - 2 x P4) | |
| 14 X Serial ATA power supply | ||
| 1 X ATX 20 + 4 Pin | ||
| 1 X Molex Floppy Disk 4 Pin Female | ||
| 5 X Molex (4 Pin) Female | ||
| 6 X PCI Express 6 + 2 Pin | ||
Configurator |
PSU-CM compatibility |
+12V P4 |
| +12V P4 and +12V P4 | ||
| +12V P8 | ||
| +12V P8 and +12V P4 | ||
| +12V P8 and +12V P8 | ||
Cooling |
Fan size |
135mm |
Silent |
Yes | |
Power supply type (PC) |
Active | |
Design |
Power format |
ATX/EPS |
Power supply standard |
ATX12V | |
| EPS12V | ||
ATX 3.0 |
No | |
Multi-GPU |
3-way CrossFireX | |
| 3-way SLI | ||
| CrossFireX | ||
| SLI | ||
Typical use |
Desktop computer | |
Physical characteristics |
Color |
Black |
LED RGB |
No | |
Height |
86 mm | |
Width |
150 mm | |
Length |
170 mm | |
Warranties |
Commercial warranty |
Seller 3 years |
Legal warranty |
See terms & conditions |
See all Seasonic products
Product referenced on 27 Jan 2020
I have to say that I am very pleased with the quality of the power supply, but it is not the first time that I have seen this problem with seasonic power supplies, the power supply has start-up problems... which makes it unusable. I am not losing hope that ldlc will replace it or I will buy a new one because it is still a nice product.
I've had several fairly large coil whines just by plugging in the power supply, while the switch is still on "off", and of course when you turn on the computer, it doesn't get any better. I'm not sure what to do about it. I'm not sure what to do with it, but I'm sure it's a good idea to have a look at it. I'm not sure if this is a good idea or not, but I'm sure it's a good idea.
Very good quality, nothing to say,
and the LDLC delivery as usual RAS
I'm sure you'll find it very good.
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