Cooler Master Silent Pro Hybrid 850W Modular Power Supply Review
Ryan Martin / 9 years ago
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1. Introduction2. Packaging and Contents3. A Closer Look — Exterior4. A Closer Look — Interior5. Test Procedure6. Voltage Regulation, Efficiency and PFC7. Noise/Ripple Testing8. Cross Loading9. Fan Speed10. Conclusion11. View All Pages |
Next Page » |
Introduction
It’s been an absolute age since we took a look at a Cooler Master power supply and since I’ve been reviewing power supplies I’ve yet to come across one. However, today we have quite an exciting power supply from Cooler Master that will probably get any enthusiast really excited. The Cooler Master Silent Pro Hybrid 850W PSU is just jam-packed full of features such as a FULLY modular design, an integrated fan controller, 80 Plus Gold certification, a passive fan mode up to 20% load and a beautiful aluminium finish around the fan grille which just compliments the textured black finish beautifully. As you can probably tell I am a fan of this power supply’s design but the real test will have to be how it performs in our tests.
The Cooler Master Silent Pro Hybrid 850W is part of Cooler Master’s extensive Silent Pro series which includes the Silent Pro Gold, Silent Pro M, Silent Pro M2 and of course the Silent Pro Hybrid. Cooler Master’s choice of OEM producer for this particular is Enhance but Cooler Master have extensively modified these PSUs to meet the things they expect such as Silence, aesthetics and just generally quality of finish. Without any further ado let us proceed through this review.
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1. Introduction2. Packaging and Contents3. A Closer Look — Exterior4. A Closer Look — Interior5. Test Procedure6. Voltage Regulation, Efficiency and PFC7. Noise/Ripple Testing8. Cross Loading9. Fan Speed10. Conclusion11. View All Pages |
Next Page » |
Topics: 135mm fan, 80 PLUS Gold, cooler master, Enhance, fan controller, modular, power supply, psu, review
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Cooler Master Silent Pro M 850W
- Details
- Category: Power Supplies
It’s hard to tell it from the reviews we have done in the past, but our friends over at Cooler Master make more than cases.
In fact, they have a wide range of products including a variety of power supplies. For the past year, I have been using their UCP 1100w in my own rig and have been very happy with it. Today we are going to take a look at their new 850 watt Silent Pro M and see if it lives up to the Cooler Master name.
Product Name: Cooler Master Silent Pro M 850W
Review Sample Provided by: Cooler Master
Review by: Wes
Pictures by: Wes
Specification
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Model
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RS850-AMBAJ3-US
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Type
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Intel ATX12V V2.
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Dimension
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5.91(W) x 3.39(H) x 6.5(L) (inches) 150(W) x 86(H) x 165(L) (mm)
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Input Voltage
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90~264V (Auto Range)
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Input Current
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12A@115Vac, 6A@230Vac
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Input Frequency Range
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47~63Hz
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PFC
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Active PFC >0.9
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Power Good Signal
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100~500ms
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Hold Up Time
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>17ms
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Efficiency
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85% Typically
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MTBF
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>100,000hrs
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Protection
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OVP/ UVP/OCP/OPP/OTP /SCP
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Output Capacity
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850W
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Max.
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1020W
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Operation Temperature
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0~40°C (Nominal Input Voltage)
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Regulatory
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TUV / CE / GOST / C-tick / UL / FCC / CCC / BSMI
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Fan
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135mm ultra silent fan
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Certification
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SLI / 80 Plus Bronze
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Connector
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M/B 20+4 Pin Connector x 1
4 Pin Floppy x 1
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Warranty
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5 years
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3 ? SSI EPS 12V V2.92
Output Capacity
Packaging
Whoa! A Cooler Master product that didn’t come in their normal purple and white combination? Cooler Master has wrapped the Silent Pro M 850 in black packaging.
On the front there is a picture of the Silent Pro M 850 showing off its modular cables along with 80 plus Bronze, SLE ready, and a 5 year warranty logo. On the back, a full specification listing is on the left side with photo highlights and a feature list taking up the rest of the space. The outside lining slides off revaling a nice clamshell style cardboard box. Inside the modular cables can be found in a nice pull string bag. What surprised me was the lack of foam or any other packing materials for the power supply itself. With other manufactures, I have seen a Power Supply Unit (PSU) come in up to two inches of protection excluding the box.
Installation
Installing the Silent Pro M into our test rig went smoothly as usual. I was excited to see they included some of the thin flexible cable found on some Crucial and Ultra power supplies. The thin cables made hiding them and fitting them into tight spaces very easy. The attention to detail didn’t stop there, Cooler Master has also included a few rubber anti-vibration mounts and a bag to store the extra cables.
Our Test Rig
Intel i7 920 2.67Ghz
Gigabyte GA-EXS8-UD4P Motherboard
Corsair 620 Power supply
1gb x 3 Triple channel A-Data Ram
Western Digital Velociraptor
Sparkle X265 Video Card
Cooler Master Storm Sniper Case
Windows 7
Performance
In order to test the Silent Pro M first we installed it our test rig. I then put the power supply under a heavy workload using a program called OCCT. OCCT graphs out the voltage as it puts the PSU under a heavy load but initially my results for the 12volt rail came out incorrect. Because of that I went back to testing out the PSU our old way.Which uses a multi-meter to monitor and 3DMark Vantage to put the PC under load. Here are the results
The difference between the Silent Pro M and most of the power supplies that we have tested in the past is its single rail design in comparison to the four rail design we have seen on most other power supplys.
What does that mean to you? With a four rail design you are limited on the amount of amperage you can push through each rail, some of the higher wattage video cards may push the limits of each rail.The single rail design does not have that limitation.The chance of you not having enough power is a little greater with a multi rail design. My testing of the Silent Pro M shows that even with the load of normal gaming I was almost unable to make the PSU hiccup. Of course though that doesn’t show you more than the voltage drop while under load. While watching the voltage during testing I was impressed to see little to no fluctuation in voltage which means that the Silent Pro M is great at regulating power.
The best part about the Silent Pro M from Cooler Master is of course it’s noise performance. As the name says, this power supply was silent even under the heavyiest loads. Its large 135mm fan only spins up if PSU’s temperature get too high even at its peak it only reaches an RPM just above 1500.
Overall
I think Cooler Master has put together a well rounded package with the Silent Pro M 850 watt power supply. Low noise, good performance, and they even included easy to route thin cables. In fact after all the testing, I wasn’t able to find any real issues. The difference between a score of 9 or 10 was the attention to detail. The anti-vibration mounting ring and the bag to store the extra cables were very nice touches. Now that testing is done the Silent Pro M is going right into our new i5 test rig, so you will see more of it soon.
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Thermaltake Toughpower XT 750w
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Antec Signature 850 Power Supply
Review and testing of the power supply Cooler Master XG Plus 650 Platinum — i2HARD
Cooler Master, a company that has been producing power supplies on OEM platforms for a long time, has started developing and releasing its own models.
The first series was XG Plus Platinum — as you can see, traditionally start with flagship solutions.
We are testing the junior model for 650 W (the line includes models for 750, 850 W). In addition, there are XG Platinum models without illumination, also in three power options.
These are 80 PLUS Platinum certified fully modular PSUs. There is no fashionable hybrid cooling system, but there is a backlight, including in the form of an information display on the side face.
Contents:
- Specifications
- Packaging and contents
- Appearance
- Circuitry
- Cooling and lighting
- Testing
- Conclusion
Specifications
- Model: MPG-6501-AFBAP-XEU;
- Standard: ATX SFX 12V Ver. 2.53, ErP 2014 Lot 3;
- Operating voltage range: 100-240 V;
- Dimensions: 160 x 150 x 86 mm;
- Used fan diameter: 135 mm;
- Efficiency: 92%;
- Certified: 80 PLUS Platinum;
- Protections: OVP, OPP, SCP, OCP, UVP, OTP, Surge and Inrush Protection;
- Cable system: modular;
- Warranty: 10 years.
Load characteristics:
Packaging and Contents
The power supply comes in a colorful glossy box. On the front side there is an image of a backlit power supply, an indication of the model, pictograms about the main advantages.
On the reverse side and on the side faces — detailed information with product characteristics, tables and graphics, detailed illustrated descriptions of key features.
The box contains the power supply unit in a fabric bag fixed in a polyurethane foam mold; case with Velcro flap with modular cables.
Includes mounting screws, disposable plastic ties, three Velcro ties, user manual and power cable.
Cable set consisting of:
- ATX cable 20+4 pins for system board power — 65 cm;
- Two EPS cables, 4+4-pin and 8-pin — 65 cm each;
- Two PCI-E power cables, each with two 6+2 pin connectors (4 in total) – 55+12 cm;
- Two SATA cables with four connectors — 50+12+12+12 cm;
- Cable with four Molex 4-pin — 50+12+12+12 cm;
- USB cable 10-pin — 80 cm.
Flat cables with 18AWG wires, 16AWG GPU and CPU power cables.
Appearance
Classical prism with right angles and edges, painted black body.
The front face is perforated in the form of lines of angled arrows. A power switch, a power outlet and the manufacturer’s logo are located in a row.
The bottom edge has the same perforation, but larger. In the center is an insert in the form of a shiny logo.
On the top side there is a sticker with load characteristics.
The left side has a stamping in the form of stiffeners, the BP model is applied with paint.
The right side is completely covered with a transparent acrylic plate, under which the LCD display is visible.
On the rear side there are connectors for connecting modular cables: ATX, EPS and PCI-E connectors horizontally, three 5-pin peripheral power connectors vertically. On the side there is a 4-pin connector for connecting a USB cable to the internal connectors of the motherboard.
Circuit Design
Cooler Master’s proprietary platform is based on a modern and efficient full bridge topology with an LLC resonant converter in the primary circuit and a synchronous rectifier and DC-DC converters in the secondary circuit.
There is a complete EMI filter at the input. Part of it is soldered on a separate board directly on the input socket, the second part is on the edge of the main board.
The filter consists of four Y-capacitors, two X-capacitors, two chokes. To protect the PSU itself, there is a varistor plus an NTC thermistor and relays that protect against inrush current.
Two diode assemblies of the GBU 15KL rectifier (15 A, 800 V) are screwed on the edge of the largest radiator.
Next comes the APFC. Behind it is a large radiator that cools the power elements: a PCDP0865G1 diode (8A, 650V) and two NCE Power Semiconductor NCE65TF130 mosfets (28A, 650V). The controller is soldered on the reverse side of the board, the markings are not visible, everything is varnished.
PWM controller EM8569C, which is responsible for standby power, peeks out under the cutout of the lower corner of the radiator; nearby — duty transformer.
Between the heatsinks, a 470µF high-voltage capacitor from Nippon Chemi-Con, a Japanese company, is rated for 450V and temperatures up to 105°C.
On the first radiator, there are four keys of the main full-bridge converter — NCE Power Semiconductor NCE65TF180F mosfets (21 A, 650 V). Nearby is a small transformer and a choke included in the converter circuit.
The Champion CM6901T6X converter controller is soldered on the back of the board.
Next comes the +12V transformer and two parallel vertical boards with synchronous rectifier switches, two on each board — 3107 (118A, 30V).
They are cooled by a small L-shaped radiator, heat is also removed from the back of the board to the case through a thermal pad.
DC-DC converters are located atypically — on a board with modular connectors.
On the inside of the board are two CMG0004 and two CM780 mosfets, as well as an APW7159C controller.
Chokes and solid capacitors on the back of the board.
Here are the filter capacitors, including three electrolytic Nippon Chemi-Cons.
The reverse side of the board is made of high quality, the soldering is neat.
Cooling and lighting
Cooling uses a DF1352512FDHN fan based on a fluid dynamic bearing, with a transparent acrylic impeller and ARGB lighting. The maximum speed is 1800 rpm.
The fan runs constantly, most of the time at minimum speed — 600-700 rpm. At the same time, it can be called silent (noise level — less than 30 dB). Turnovers begin to grow only after a load of more than 500 W, but even at maximum load, the noise remains within comfortable limits, less than 40 dB.
On the blades, the illumination is very well scattered, visually we observe a solid disk of light with high brightness.
The XG650 model is displayed on the side face, the logo is in the center, on the right is a four-digit indicator with a periodic change in the displayed values: fan speed, component temperature and output power.
Each value is indicated by a corresponding icon around the edge.
It is possible to adjust the backlight through the Cooler Master MasterPlus+ utility. To date, XG models are the only power supplies that support this utility. So far, it is only possible to adjust colors and change them, as well as synchronize with other Cooler Master products that support this utility.
I would like to see a full-fledged display on which the user can display information or an image of interest to him.
Testing
Test bench based on electronic loads, which allows you to load the +12 V line with a smooth increase in power. The +3.3 V and +5 V lines were connected to electronic loads, which allowed changing the load up to 20 A per channel.
The ATX12V standard requires a maximum deviation of 5%. For the +12 V line, this corresponds to the range from +11.4 to +12.6 V. Modern power supplies most often fit into 1-2%.
The voltages on all lines are initially not overstated more than the nominal values.
After approximately half load, the voltages increase and again decrease slightly with increasing load. All deviations fit into -1% along the +12 V line and -2% — along the secondary lines, which is an excellent result and indicates very high stability on all lines.
The efficiency of the power supply fits into the 80 PLUS Platinum standard for 230 V networks.
Conclusion
The Cooler Master XG Plus 650 Platinum is an interesting solution, given that it is the company’s own development. And above all, not the presence of a backlight or a display — this is just an external attribute that distinguishes the power supply from competitors.
The power supply is efficient, the efficiency fits into the 80 PLUS Platinum standard, it demonstrates stable voltages on all lines, which is in line with other modern solutions, it is equipped with a quiet fan.
The circuitry itself is quite typical and does not differ in special innovations, we can only highlight the placement of DC-DC converters directly on the board with modular connectors — we have not seen this before.
It is quite natural to complete only Japanese capacitors from the high-temperature series. A somewhat strange solution seems to be the absence of a passive fan operation mode. Perhaps this is due to the presence of backlight. It does not look so impressive when the fan is stopped, however, with its lower placement, this is not relevant.
Cables are well sized and have connectors, two separate EPS cables, GPU power with 16AWG wires, enough power connectors for peripherals.
An additional USB connection for monitoring and adjusting the backlight via software is not something original; within a single system based on Cooler Master products, this may be in demand.
The only downside is the price. Today, a power supply unit costing more than 200 euros is irrelevant for a Russian user, even with other advantages.
Pros:
- Design;
- ARGB illumination with software adjustment;
- High efficiency;
- Stable voltages;
- Modern circuitry;
- Japanese capacitors;
- Quiet fan;
- Good set of cables and connectors;
- 10 year warranty.
Cons:
- High cost.
Review and testing of the Cooler Master V750 SFX Gold power supply — i2HARD
Alexey Lalitin
May 24, 2021
The debut line of compact power supplies with a modern design is ready to compete with eminent brands.
SFX compact form factor power supplies, unlike common ATX ones, are rarely in demand when assembling PCs. Therefore, many PSU manufacturers do not even bother with the release of the corresponding models. And you can meet them only in the arsenal of the most famous brands, and then in the form of a limited line.
Cooler Master has decided to make its debut in this niche of mini-ITX solutions with the release of the V SFX Gold series of models. The line includes four models for 550, 650, 750 and 850 watts.
On the example of the V750 SFX Gold model, we will consider the design and capabilities of new products.
Specifications
- Model: MPY-7501-SFHAGV;
- Standard: ATX SFX 12V Ver.
3.42, ErP 2014 Lot 3; - Operating voltage range: 90-264V;
- Outputs: 3.3V — 20A, 5V — 20A, 12V — 62.5A;
- Output power of +3.3V and 5V lines: — 120 W;
- Output power lines +12V: — 750 W;
- Dimensions: 100 × 125 × 63.5 mm;
- Used fan diameter: 92 mm;
- Bearing type: hydrodynamic;
- Efficiency: 90%;
- Certificate received: 80 PLUS Gold;
- Protections: OVP, OPP, SCP, OCP, UVP, OTP, Surge and Inrush Protection;
- Cable system: modular;
- Weight without cables: 1 kg;
- Warranty: 10 years.
Packing and contents
The power supply is supplied in a cardboard box with color printing, a black background with purple inserts is the manufacturer’s corporate identity.
On the front side there is an image of the power supply, an indication of the model and key characteristics.
More detailed information is on the back side and side faces.
In the box, the power supply is securely fixed in polyurethane foam dampers. The whole set is in cellophane bags.
The kit includes:
- Adapter frame for mounting in standard ATX cases;
- 6 plastic ties;
- 3 Velcro straps;
- 8 mounting screws;
- Mains cable;
- Modular cable set.
All cables are made in the form of flat black loops. The main cables are 16 AWG and the peripheral cables are 18 AWG. The laces are quite soft.
The set includes:
- ATX cable 20+4 pins for system board power — 30 cm;
- Two CPU power cables, one 4+4-pin, the other 8-pin — 45 cm each;
- Two PCI-E power cables, each with two connectors 6 + 2 pins (4 pcs in total) — 40 + 11.5 cm;
- Two SATA cables with four connectors — 10+10+10+11 cm;
- Cable with four Molex 4-pin — 10+11+11+11 see
Appearance
The miniature prism of the case after the standard PSUs is a delight. How could such a powerful and efficient stuffing and modular cable connection be accommodated in this «baby»?
On the front side, everything is according to the standard: perforation in the form of honeycombs, a power switch and a power outlet.
The bottom panel has an octagonal cutout above the fan, covered with a «grill» grill. In the center is an insert with a silver company logo.
On the top panel there is a sticker with load characteristics.
On the side faces there is a deep stamping in the form of the letter «C» and the inscription V750.
The rear panel houses connectors for modular cables in two horizontal rows. All connectors are signed. PCI-E and CPU are universal, interchangeable.
Cooling
For cooling components installed 92mm fan HA9215Vh22FD-F00 manufactured by Hong Hua based on FDB (Fluid Dynamic Bearing).
Despite its small size, this is a very quiet fan. In addition, it has a passive mode of operation up to a load of about 20%. When you turn on the PC, the fan does not spin up.
Up to 50% load, the fan runs at minimum speed, the noise level was about 32 dB. Further, with an increase in load, the speed and noise increase — up to 42 dB at maximum speed.
Circuitry
The compact body allows for a very tight fit. The distance between the fan and accessories is minimal.
The design of the case itself is also original: the fan is attached to a separate plate of its own, the back and top panels are in the form of a single L-shaped plate, the side faces are combined with the front and it is possible to remove the board from them only by unsoldering the contacts from the network connector.
The mosfets on the back of the board are cooled through thermal pads by a metal plate, which in turn transfers heat to the outer case. The rest of the board is covered with a dielectric gasket.
The circuitry is based on an LLC resonant converter with a synchronous rectifier and DC-DC converters in the secondary circuit.
Radiators for cooling power elements are L-shaped, there are perforations in the upper part for better ventilation.
At the input, we see a full-fledged EMI filter: four Y-capacitors, an X-capacitor, a choke. There is a fuse to protect the PSU itself.
The Japanese-made Nichicon 560mF smoothing capacitor is rated for voltages up to 450V and temperatures up to 105°C.
The +12 V mosfets (six pieces 5C410L) are located on the reverse side of the board, the Champion CU69 resonant converter controller is also located here01VAC.
Another controller placed on the back side of the board, Champion Microelectronic CM6500UNX, is responsible for the power corrector.
Low-voltage channels +3.3 V and +5 V are formed by DC-DC converters on a separate vertical board.
On one side of the board there are two chokes and solid capacitors, on the other side there are six 4C022 transistors and an APW7159C PWM controller.
Noise filtering at the outputs is carried out by Japanese-made polymer and electrolytic capacitors Rubycon and Nichicon.
Additional smoothing solid-state capacitors are soldered on the board for connecting modular cables.
Testing
The test bench allows you to load the +12 V line in 100 W steps. The +3.3 V and +5 V lines were connected to a constant load of 50 W.
According to the requirements of the ATX12V standard, the deviation should not exceed 5%. For the +12 V line, the voltage is considered normal in the range from +11.4 to +12.6 V.
Voltage stability across all channels is very good. Initially, the voltages are overestimated on the +12 V and +5 V lines up to 1% and sag slightly at maximum load, also no more than 1%. On the +3.3 V line, the voltage is overestimated to 2% and sags to the nominal value under load.
The efficiency level fully complies with the 80 PLUS Gold standard for 230 V networks, the maximum 93% is demonstrated at a load of 300 to 500 W. Taking into account the efficiency at a load of 20 and 100%, we can say that the efficiency of this PSU is only slightly below the 80 PLUS Platinum certificate, which also indirectly indicates the use of high-quality high-performance components in circuitry.
Conclusion
Cooler Master’s V SFX Gold line of power supplies is a great debut in a compact model. Advanced circuit design with high efficiency, stable voltage, high power.
Neat design with fully modular cables, relatively quiet fan with semi-passive operation of the cooling system.
The model turned out to be competitive, even taking into account the rather high cost. Comes with a good set of cables and connectors.
Pros:
- High power;
- Modern circuitry;
- Excellent efficiency;
- Stable voltages;
- Quiet fan;
- Fully modular cable connection system;
- Flat cables;
- Adapter frame included;
- 10 year warranty.