Part Analysis
| General Data | |
| Manufacturer (OEM) | CWT |
| Platform | CTE |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | 1x NTC Thermistor SCK207R0 (7 Ohm) & Relay |
| Bridge Rectifier(s) |
2x GBJ1506 (600V, 15A @ 100°C)
|
| APFC MOSFETs |
2x Vishay SiHA105N60EF (600V, 8A @ 100°C, Rds(on): 0.102Ohm)
|
| APFC Boost Diode |
1x Vishay VS-3C10ET07T-M3 (650V, 10A @ 140°C)
|
| Bulk Cap(s) |
1x Rubycon (420V, 820uF, 2,000h @ 105°C, MXE)
|
| Main Switchers |
2x STMicroelectronics STF33N60DM2 (650V, 15.5A @ 100°C, Rds(on): 0.130Ohm)
|
| PFC / PWM Combo Controller | MPS HR1280 |
| Topology | Primary side: Semi-Digital, APFC, Half-Bridge & LLC Resonant Converter 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 | 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) |
| Filtering Capacitors | Electrolytic: 2x Nippon Chemi-Con (@ 105°C, W) 2x Nippon Chemi-Con (2-5,000h @ 105°C, KZE), 2x Rubycon (3-6,000h @ 105°C, YXS) 1x Rubycon (6-10,000h @ 105°C, ZLH) Polymer: 2x Nippon Chemi-Con, 23x FPCAP |
| Supervisor IC | – |
| Fan Controller | Nuvoton MS51FB9AE |
| Fan Model | ZIC ZFF132512H BAX3 (135mm, 12V, 0.45A, Fluid Dynamic Bearing Fan) |
| 5VSB Circuit | |
| Rectifier |
1x Dongke Semiconductor DK5V45R10S (45V, 10A)
|
| Standby PWM Controller | On Bright OB2365T |
The compact PCB has large enough heatsinks not to stress the active cooling, since the platform’s efficiency is Gold and not Platinum or Titanium, so thermal losses will be significant at high loads. This is the CTE platform by CWT, which uses a digital combo PFC/LLC resonant controller provided by MPS. This means that the design is semi-digital since a digital controller controls the primary side and a part of the secondary. We would have a fully digital platform if the VRMs generating the minor rails and the 5VSB circuit were also digitally controlled. But guess what? This would increase the cost, and most likely, no one would want to pay above 200 dollars for a 1000W Gold PSU.
The 12V FETs are installed on the main PCB’s top side, and some heatsinks on top cool them down. The 12V FETs are close to the main transformer to minimize energy losses, and the VRMs generating the minor rails are nearby for the same reason. CWT used high-quality parts, including top-notch FETs and capacitors, to increase the platform’s reliability and performance. In the sample I got, the soldering quality was mediocre to ba,d though, in some parts. This is typical for pre-production samples, where many soldering jobs are hand-made. I will ask MSI to send me the final production products so I can check on the soldering quality!
The cooling fan is made by ZETA, which looks to be a worthy opponent for Hong Hua, which has dominated the market for the last few years. It uses a fluid dynamic bearing for increased reliability and lower noise output. I noticed some bearing noise at low speeds (200-400 RPM), and the fan started from 400 RPM in my tests. It would be ideal if MSI started the fan from 500 RPM, where the bearing noise is minimized. To give you an idea, at 400 RPM, the fan’s noise is 12.1 dBA at a 1-meter distance, while at 500 RPM, the noise is at 10.8 dBA at the same distance. This most likely will pass unnoticed by most users.
Hi, Aris! I scrolled down Enermax’s website, and came up with Enermax Revolution III. It is said to be ATX 3.1, and i’m pretty sure it’s a replacement for Revolution DF judging from its price
Would you be consider to review this unit? Thanks
if Enermax sends it over, I could take a look 🙂
hello Aris did Gigabyte sends you some of their new AI PSU ?
GBT doesn’t even talk to me, for many years now after I exposed its failure PSUs.