Giao dịch Corsair RM850x tốt nhất hiện nay Hiển thị thêm Giao dịch Thật khó để nâng cấp một thứ đã khá tốt. Nhưng Corsair đã làm được điều đó với bộ nguồn RM850x, cải thiện hiệu quả khi tải nhẹ, bổ sung thêm một đầu nối EPS và sử dụng quạt bay từ tính hàng đầu. Đây là một sản phẩm xứng đáng nằm trong danh sách bộ nguồn tốt nhất của chúng tôi. Các đối thủ của nó bao gồm XPG Core Reactor 850W và công suất tương tự Mô hình Cooler Master V850 Gold V2 . Corsair RM850 giá cả phải chăng hơn, có hiệu suất gần với RM850x, là một lựa chọn tốt khác trong danh mục này. Dòng RMx của Corsair là một trong những dòng phổ biến nhất trên thị trường PSU phân khúc trung bình hiện nay, vì vậy việc cập nhật là một nhiệm vụ khó khăn. Việc sử dụng quạt bay từ tính là một tài sản lớn. Vòng bi của súng trường được sử dụng trong dòng RMx thế hệ trước là tốt, nhưng không thể so sánh với quạt ML mà các đơn vị mới sử dụng; Súng trường và ổ trục chất lỏng không thể đối phó với nhiệt độ vận hành cao. Vấn đề duy nhất là cấu hình quạt tích cực hơn, nhưng cập nhật từ Corsair có nghĩa là các lô RM850x mới có đầu ra tiếng ồn trung bình thấp hơn so với các đơn vị sản xuất ban đầu. The RM850x (2021) is the strongest member of the line, with enough power to handle a strong gaming system or a video editing workstation. To support the ultra-high-end mainboard, Corsair equipped it with three EPS connectors, something that’s hard to find in today’s market, even in stronger PSUs. The fully modular cable design is a must in this price range, and the same goes for the ten-year warranty, from the moment all competing offerings are supported by equally long warranty periods. Lastly, the PSU’s dimensions are normal with 160mm length, so there won’t be any compatibility issues with ATX cases. Manufacturer (OEM) CWT Max. DC Output 850W Efficiency 80 PLUS Gold, Cybenetics Gold (87-89%) Noise Cybenetics A-(25-30 dB[A]) Modular ✓ (Fully) Intel C6/C7 Power State Support ✓ Operating Temperature (Continuous Full Load) 0-50°C Over Voltage Protection ✓ Under Voltage Protection ✓ Over Power Protection ✓ Over Current (+12V) Protection ✓ Over Temperature Protection ✓ Short Circuit Protection ✓ Surge Protection ✓ Inrush Current Protection ✓ Fan Failure Protection ✗ No Load Operation ✓ Cooling 140mm Magnetic Levitation Fan (NR140ML) Semi-Passive Operation ✓ Dimensions (W x H x D) 150 x 85 x 160mm Weight 1.71 kg (3.77 lb) Form Factor ATX12V v2.53, EPS 2.92 Warranty 10 Years The cables are long enough, and it is impressive to see three EPS and four PCIe available. There is no need for more PCIe, given that the majority of users have a single graphics card installed. The only letdown is the small distance between the peripheral connectors. We strongly encourage you to have a look at our PSUs 101 article, which provides valuable information about PSUs and their operation, allowing you to better understand the components we’re about to discuss. 2x GBU1506 (600V, 15A @ 100°C) 2x Vishay SiHF30N60E (650V, 18A @ 100°C, Rds(on): 0.125Ohm) 1x On Semiconductor FFSP0865A (650V, 8A @ 155°C) 2x Nippon Chemi-Con (400V, 470uF each or 940uF combined, 2,000h @ 105°C, KMW) 2x On Semiconductor FCPF190N60E (600V, 13.1A @ 100°C, Rds(on): 0.19Ohm) Champion CM6500UNX & Champion CM03X Primary side: APFC, Half-Bridge & LLC converter DC-DC Converters: 2x UBIQ QM3054M6 (30V, 61A @ 100°C, Rds(on): 4.8mOhm) & 2x UBIQ QN3107M6N (30V, 70A @ 100°C, Rds(on): 2.6mOhm) Electrolytic: 7x Nippon Chemi-Con (1-5,000h @ 105°C, KZE), 7x Nippon Chemi-Con (4-10,000h @ 105°C, KY), 1x Rubycon (4-10,000h @ @ 105°C, YXJ) Channel Well Technology (CWT) remains the OEM of the RMx line, and it did a great job under Corsair’s strict supervision. The platform has some differences from the older one to provide increased efficiency at light loads and support for alternative sleep modes. The most important change is the new fan, with ML bearings. These fans do not come cheap, so it is a nice surprise that Corsair decided to use them in the new RMx line. The build quality is good overall. Corsair used Japanese capacitors on both primary and secondary sides, and known manufacturers provide the FETs. The transient/EMI filter has all necessary parts and it does a good job, in restricting EMI emissions. The two powerful bridge rectifiers are more than enough to handle the max power that this platform can deliver. The APFC converter uses two Vishay FETs and a single boost diode, by On Semiconductor. These are high-quality parts. The main switching FETs, provided by Infineon, are installed into a half-bridge topology. An LLC resonant converter is also used to boost efficiency. Six FETs regulate the 12V rail, and the minor rails are generated through a pair of DC-DC converters. The electrolytic caps are by Chemi-Con and Rubycon. Lots of polymer caps are also used, for ripple filtering. The 5VSB rail uses an SBR on its secondary side, so its efficiency will take a hit. The supervisor IC, a Weltrend WT7502R, is installed on the same board with the fan controller. Lots of polymer fans are installed on the face of the modular board, forming an addition ripple filtering layer. Soldering quality is good. The magnetic levitation fan is among the notable changes in the new RMx units. It isn’t as quiet as the rifle bearing fan that the older RMx units use, but it is far more reliable, especially at high operating temperatures. MORE: Best Power Supplies MORE: How We Test Power Supplies MORE: All Power Supply Content
Ảnh sản phẩm
Product Photos
Specifications
Power Specifications
Rail
3.3V
5V
12V
5VSB
-12V
Max. Power
Amps
20
20
70.8
3
0.3
Watts
150
849.6
15
3.6
Total Max. Power (W)
850
Cables & Connectors
Description
Cable Count
Connector Count (Total)
Gauge
In Cable Capacitors
ATX connector 20+4 pin (610mm)
1
1
16-20AWG
Yes
4+4 pin EPS12V (650mm)
3
3
18AWG
Yes
6+2 pin PCIe (600mm+150mm)
2
4
16-18AWG
Yes
SATA (500mm+110mm+110mm+110mm)
2
8
18AWG
No
SATA (520mm+110mm+110mm)
2
6
18AWG
No
4-pin Molex (450mm+100mm+100mm+100mm)
1
4
18AWG
No
AC Power Cord (1400mm)-C13 coupler
1
1
18AWG
–
Cable Photos
Component Analysis
General Data
–
Manufacturer (OEM)
CWT
PCB Type
Double Sided
Primary Side
–
Transient Filter
4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection
NTC Thermistor SCK-037 (3 Ohm) & Relay
Bridge Rectifier(s)
APFC MOSFETs
APFC Boost Diode
Bulk Cap(s)
Main Switchers
APFC Controller
Resonant Controller
Champion CU6901VAC
Topology
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
–
+12V MOSFETs
6x On Semiconductor NTMFS5C430N (40V, 131A @ 100°C, Rds(on): 1.7mOhm)
5V & 3.3V
PWM Controllers: UPI Semi uP3861P
Filtering Capacitors
Polymer: 37x FPCAP
Change Over Switch
1x Sync Power SPN3006 MOSFET (30V, 57A @ 100°C, Rds(on): 5.5mOhm)
Supervisor IC
Weltrend WT7502R (OVP, UVP, SCP, PG)
Fan Controller
Microchip PIC16F1503
Fan Model
Corsair NR140ML (140mm, 12V, 0.27A, Magnetic Levitation Bearing Fan)
5VSB Circuit
–
Rectifiers
1x PS1045L SBR (45V, 10A) & IPS ISD04N65A (650V, 2.5A @ 100°C, Rds(on): 2.2 Ohm)
Standby PWM Controller
On-Bright OB5282
Overall Photos
Transient filter
Bridge rectifiers
APFC converter
Main FETs and primary transformer
12V FETs and VRMs
Filtering caps
5VSB circuit
Modular board front
Soldering quality
Cooling fan
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