Part Analysis
| General Data | |
| Manufacturer (OEM) | HEC |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 3x X caps, 2x CM chokes, 1x MOV, 1x Power Integrations CAP200DG (Discharge IC) |
| Inrush Protection | NTC Thermistor SCK-056 (5 Ohm) & Relay |
| Bridge Rectifier(s) |
2x GBU15L06 (600V, 15A @ 115°C)
|
| APFC MOSFETs |
2x Great Power GP47S60 (600V, 47A, Rds(on): 0.081Ohm)
|
| APFC Boost Diode |
1x CREE C6D10065A (650V, 10A @ 155°C)
|
| Bulk Cap(s) |
1x Teapo (400V, 680uF, 2,000h @ 105°C, LS)
|
| Main Switchers |
2x Great Power GP36S60YERD
|
| APFC Controller |
Champion CM6500UNX & CM03AX
|
| Resonant Controller | Champion CM6901T6X |
| Topology |
Primary side: APFC, Half-Bridge & LLC Resonant converter
Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | no info |
| 5V & 3.3V | DC-DC Converters: 4x Potens Semiconductor PDC3906X (30V, 51A @ 100°C, Rds(on): 5.5mOhm) PWM Controller(s): 1x ANPEC APW7159C |
| Filtering Capacitors | Electrolytic: 6x Teapo (1-3,000h @ 105°C, SC), 2x Nippon Chemi-con (2-5,000h @ 105°C, KZE) 1x Rubycon (4-10,000h @ 105°C, YXF) Polymer: 6x Teapo, 17x Uni-Con |
| Supervisor IC | Weltrend WT7527RT (OCP, OVP, UVP, SCP, PG) |
| Fan Controller | Nuvoton M031FB0AE |
| Fan Model | Hong Hua HA1225H12F-Z (120mm, 12V, 0.58A, Rifle Bearing Fan) |
| 5VSB Circuit | |
| Rectifier |
1x PS1060L SBR (60V, 10A)
|
| Standby PWM Controller | Excelliance MOS EM8569D |
The PCB is small and densely populated. To save space, EC used two vertical boards, one hosting the DC-DC converters that generate the minor rails and one with the FETs that regulate the 12V rail. The heatsinks are large enough to meet the unit’s thermal needs without using excessive active cooling, hence keeping noise output low.
The 12V board is right next to the main transformer to minimize energy losses. The platform’s design is the typical one: a half-bridge topology on the primary side and an LLC resonant converter. The secondary uses a synchronous rectification scheme for the 12V rail, which feeds a pair of VRMs for the generation of the minor rails. The soldering quality is great, and the parts that HEC used are of good quality also, but do not belong to top manufacturers in an effort to keep the production cost under control. The cooling fan is by Hong Hua and uses a rifle bearing, instead of a fluid dynamic one. There have to be some differences between the higher-end RMx line and the RMe one, or else users won’t opt to buy the more expensive RMx models.
Hi! I am tempted to buy the Asus Rog Strix 1200w ATX 3.1, but after reading your review I got a bit discouraged, I’m between the asus, the nzxt c1200 and the corsair RM1000x, which do you think is best for something like the RTX 5090? Thank you!