We would like to thank FSP for supplying the review sample.
The FSP Hydro PTM with 650 W maximum power output is a mid-capacity power supply for enthusiast users who don't mind spending a little more to get an efficient unit with good build quality and a nice external design. The HPT650M can easily support a system equipped with a potent CPU and high-end graphics card. Should you need to power a pair of energy hungry GPUs, you better invest in a stronger power supply.
The HPT650M is Platinum and ETA-A certified by 80 PLUS and Cybenetics labs respectively. It also has a LAMBDA-A noise certification, which shows that it operates quietly overall. The 135 mm fluid dynamic bearing fan FSP uses might not be supported by a semi-passive operation, but is driven by a relaxed fan speed profile.
|FSP HPT650M Features & Specifications|
|Max. DC Output||650 W|
|Efficiency||ETA-A & 80 PLUS Platinum|
|Intel C6/C7 Power State Support||✓|
|Operating temperature||0 °C - 50 °C|
|Protections||Over Voltage Protection|
Under Voltage Protection
Over Power Protection
Over Temperature Protection
Over Current Protection
Short Circuit Protection
|Cooling||135 mm Fluid Dynamic Bearing Fan (MGA13512HF-A25)|
|Dimensions||152 mm (W) x 88 mm (H) x 172 mm (D)|
|Weight||1.7 kg (3.75 lb)|
|Compliance||ATX12V v2.31, EPS 2.92|
|Price at Time of Review (excl. VAT)||$119.99|
All necessary protection features are included, and the ten-year warranty shows FSP's faith in the Hydro PTM 650 W. Finally, the unit's dimensions are quite large given the similar Seasonic Focus is only 140 mm deep.
|FSP HPT650M Power Specs|
|Max. Power||20 A||20 A||54.17 A||2.5 A||0.3 A|
|120 W||650 W||12.5 W||3.6 W|
|Total Max. Power||650 W|
Cables and Connectors
|Description||Cable Count||Connector Count (Total)||Gauge||In Cable Capacitors|
|ATX connector 20+4 pin (600 mm)||1||1||18-22AWG||No|
|8 pin EPS12V (700 mm) / 4+4 EPS12V (+150 mm)||1||1 / 1||18AWG||No|
|6+2 pin PCIe (650 mm+150 mm)||1||2||18AWG||No|
|6+2 pin PCIe (500 mm+150 mm)||1||2||18AWG||No|
|SATA (500 mm+150 mm+150 mm+150 mm)||2||8||18AWG||No|
|SATA (500 mm+150 mm) / 4-pin Molex (150 mm+100 mm)||1||2 / 2||18AWG||No|
|SATA (500 mm+150 mm) / 4-pin Molex (150 mm) / FDD (+150 mm)||1||2 / 1 / 1||18-22AWG||No|
|AC Power Cord (1400 mm) - C13 coupler||1||1||16AWG||-|
All cables are fully modular and sufficiently long. The inclusion of two EPS connectors is an advantage since it ensures compatibility with server and several high-end, single-socket motherboards in need of more power for the CPU area. A notable disadvantage is that both EPS connectors are on the same cable. A single EPS connector can deliver up to 336 W so even if thicker (16AWG) gauges were used, the cable still wouldn't be able to handle the full output of two EPS connectors.
The number of PCIe and peripheral connectors is high enough for a 650 W unit, and the distance between those is sufficient at 150 mm (it could be less between PCIe connectors). Lastly, the FDD connector could be replaced with a 4-pin Molex connector since most users won't use it anyway.
|FSP HPT650M Parts Description|
|Transient Filter||4x Y caps, 2x X caps, 2x CM chokes, 1x MOV, 1x SEN013DG|
|Bridge Rectifier(s)||1x GBJ1506 (600 V, 15 A @ 100 °C)|
|Inrush Current Protection||NTC Thermistor & Relay|
|APFC MOSFETs||2x STMicroelectronics STFH24N60M2 (650 V, 12 A @ 100 C°, 0.19 Ohm)|
|APFC Boost Diode||1x STMicroelectronics STPSC6H065D (650 V, 6 A @ 110 °C)|
|Hold-up Cap(s)||2x Nichicon GG (450 V, 270 uF each or 540 uF combined, 2000 h @ 105 °C)|
|Main Switchers||2x STMicroelectronics STFH24N60M2 (650 V, 12 A @ 100 °C, 0.19 Ohm)|
|APFC Controller||Infineon ICE2PCS02 |
Supporting IC: Fairchild KA393
|Driver IC||1x Silicon Labs Si8233BD|
|Resonant Controller||Champion CM6901T2X|
|Topology||Primary side: Half-Bridge & LLC Resonant Controller|
Secondary side: Synchronous Rectification & DC-DC converters
|+12V MOSFETS||2x Toshiba TPHR85 04PL (SOP Advance Series, 40 V, 150 A @ 25C°, 0.85 mOhm )|
|5V & 3.3V||DC-DC Converters: 6x Infineon BSC0901NS (30 V, 94 A @ 100 °C, 1.9 mOhm)|
PWM Controller: APW7159C
|Filtering Capacitors||Electrolytics: 6x KZE (1-5000h @ 105 °C), Rubycon ZLH (6-10000h @ 105 °C)|
Polymers: Teapo (Taiwan)
|Supervisor IC||SITI PS223 (OCP, OTP, OVP, UVP, SCP, PG)|
|Fan Model||Protechnic Electric MGA13512HF-A25 (135 mm, 12 V, 0.28 A, FDB)|
|Rectifying Diode||International Rectifier IRFR1018E (60V, 56A @ 100 °C, 8.4 mOhm)|
|Standby PWM Controller||Power Integrations SC1225K|
The platform uses a modern design. The primary side has a half-bridge topology along with an LLC resonant converter, while a synchronous rectification scheme and two DC-DC converters for the minor rails are used for the secondary side. However, the number of cables for power transfer purposes shows that the implementation could be better. In other modern platform, those cables have been replaced by thick PCB traces and/or bus bars, which increases internal airflow and leads to better thermal management.
The electrolytic caps are provided by Chemi-Con and Rubycon, and a number of polymer Teapo caps are also used. Some would expect nothing but Japanese caps in this price range, but Teapo caps are of generally good quality, and polymer caps can easily operate under tough conditions for long periods of time.
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