In Win PowerMan 650W


1. Introduction

IN WIN was founded in 1985. Headquartered in Taoyuan, Taiwan, is a manufacturer of cases, power supplies and IT accessories. IN WIN became a leader with high quality products and services. The eight elements that are the foundation of IN WINs success are: Innovation, Service, Speed, Value, Safety, Warmth, Faithfulness, and Diligence.



Official product link: Man#product_tab

2. Packaging and accessories

The Power Supply comes in a two color cardboard box with a black background and yellow accents.
The front side of the packaging presents the product using a general image of it, the name, variants available and a few features of the Power Supply. On the upper part we find the name of the PSU line, while on the lower part there is printed the 80 PLUS Bronze certification.

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The sides of the box present a few features of the product.

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The back side of the box presents the features of the product, on the upper part we find printed the specifications for all the Power Man line models (550W-750W). Lower the connectors for all three PSUs are presented.



The product comes with the following accessories:
–    1x Manual
–    1x AC Power Cord
–    3x Velcro Ties
–    4x Metal screws



3. Specifications

Name: In Win Power Man 650W
Model: IP-S650HQ3-2
Max. DC Output: 650W
Efficiency: 80 PLUS® Bronze
Modular: No
Intel Haswell Ready: Yes
Operating temperature: 0°C – 50°C
Fan: 120mm Double Ball-Bearing
–    Over Voltage Protection
–    Under Voltage Protection
–    Over Power Protection
–    Over Current Protection
–    No Load Operation
Connectors and cables:
–    1 x 24(20+4)-pin (500mm)
–    1 x 8(4+4)-pin ATX12V/EPS12V (500mm)
–    2 x 8(6+2)-pin PCI-E (500mm)
–    3 x Molex (150mm)
–    6 x SATA (500mm+100mm+100mm+100mm)
–    1x Floppy (+100mm)
Power Distribution:
12V1: ATX, 8-pin socket, Peripheral
12V2: 16-pin socket
Dimensions: 150 mm (W) x 86 mm (H) x 170 mm (D)
Weight: 1.98 kg
Compliance: ATX12V v2.4, EPS 2.92
Warranty: 3 years


–    Active Power Factor Correction (PF>0.9)
–    High Efficiency Voltage Transfer Technology, Efficiency up to 85% (80-plus Bronze)
–    Supports Intel New 4th Generation Core Processors
–    High Reliability 105 ℃ Aluminum Electrolytic Capacitor
–    Smart Thermal Fan Control to Balance Noise & Cooling
–    MTBF> 100,000 Hours
–    650W and 750W Support SLI & CrossFire
–    Multi-Protection Function (OVP, OPP, UVP, SCP, OCP)
–    ErP Lot 6 2013 Compliant
–    Continuous Output Rated at a Demanding 50*C Ambient Temperature
–    120mm Double Ball-Bearing Cooling Fan
–    5V and 3.3V DC to DC Design


4. Visual inspection

The Power Man brand is owned by In Win, the Power Supplies from the Power Man line share the same electronic platform as the In Win Green ME line.
The Power Man 650W model has a simple design, the paint is matte and high quality. The Power supply has reduced dimensions, it measures 150mm in width and 170mm in depth with a weight of 2kg.

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The front grill which covers the 120mm fan maintains the overall look of the Power Supply, the grill being matte black.



On the back side the Power Supply uses a honeycomb-style grill, here we find both the the on/off switch and the AC socket.



The sides are matte black and simple

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The cables of the Power Supply are fully sleeved back, the quality of the sleeve is good, and the cables are exposed only when they reach the connectors of the PSU.

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On the top of the Power Supply we have the label with the specifications of the PSU.



The fan used is provided by ADDA, model AD1212LB-A70GL, specifications: 12 V, 0.24A, 1400 RPM, 56 CFM, 28 dBA. Also the fan is connected to the PSU pcb using a 2-pin molex connector.

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Despite the compact format used, the interior of the Power Supply is airy, the components are being cooled by two aluminum heat sinks.

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Behind the AC receptacle we find two Y capacitors.

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In the APFC section we find installed a Panasonic made capacitor with the following specs: 390μF/420V, next to it we have a filtering coil.  On the right side there are placed two Y capacitors.

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Next to the primary capacitor. on a vertical PCB there is the PWM controller, model CM6802, manufactured by Champion.



The standby PWM controller is placed in the center of the Power Supply next to the primary heatsink, it is model TNY278PN.



Responsible for the Power Supply’s protections there is the supervisor IC model: WT7579, manufactured by Weltrend, it is placed on the lower side of the Power Supply next to its cables.

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The capacitors used in the PowerMan 650W are manufactured by Teapo, the electrolytic capacitors are manufactured by Samxon while the polymer capacitors are Enesol.

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5. Testing

The following system was used to test the Power Supply:
–    Processor: Intel i5 4690K @ 3.9 GHz
–    Motherboard: MSI Z97 Gaming 9 ACK
–    RAM: 8GB Crucial Ballistix Tactical
–    GPU: MSI Radeon R9 390X Gaming 8GB
–    SSD: Samsung 840 EVO 120GB
–    HDD: Samsung SpinPoint F3 500GB / WD 1 TB Blue
–    CPU Cooler: SilverStone Tundra TD02 with NoiseBlocker eLoop B12-PS
–    Display: AOC i2769VM
–    Case: Phanteks Enthoo Luxe White

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The above system has a power consumption of approximately 500W when in full load, in order to test the efficiency of the Power Supply, the power draw of the system was measured at the wall socket. Also the voltages were measured on the +12v +5v and +3.3v using a multi-meter.
To load the system to its maximum the stability test of the AIDA64 Extreme (5.70.3800) was used with Intel Burn Test V2.
The Power Supply was tested with the system both idle and at maximum load.

For rail voltage tolerance levels, ATX (Power Supply Design Guide) specify that a 5% variable fluctuation is acceptable.

Voltage oscillation



The efficiency of the PowerMan 650W model is good, the total power draw with the system in full load being 581W, thus the Power Supply efficiency is 86% at 77.23% Load from its total capacity. The PSU passes the 80 Plus Bronze certification.


The noise level was measured at three different distances from the fans (10cm, 20cm, 30cm.) the noise was measured with a margin of error of ± 5 db.



6. Final thoughts

The first thing that stands out at this Power Supply is the build quality starting from the cables to the interior components. The Power Supply fits the 80 Plus Bronze efficiency standard while the voltage oscillation is within the ATX tolerance levels.
The cables are stiff enough to maintain their shape, but flexible not to impend the assembly process, as a side note; the cables could have been black to create a better look.
In conclusion, the In Win Power Man 650W is a good Power Supply which utilizes quality components starting from the electronics to the fan and cables. At this moment the Power Supply is available in three variants: 550W, 650W and 750W, the last two variants are certified for both Crossfire and SLI use.
The only drawback of this Power Supply is the length of the cables, especially the 8(4+4)pin CPU power cable which at 500mm has an acceptable length but can make the assembly process harder in some computer cases.


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