Power

EVGA SuperNOVA 1000 G3 Power Supply Evaluation

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In September 2016, EVGA, which is famous for producing graphics cards, formally introduced PC power to the Chinese market, bringing high-performance and ultra-long warranty power represented by SuperNOVA series to domestic users. At that time, I also tested four second-generation ” EVGA SuperNOVA” power supplies, namely SuperNOVA 550G2, SuperNOVA 750 G2, SuperNOVA 850 P2 and SuperNOVA 1600 G2. In November 2017, the third generation of ” SuperNOVA G3″ power supply updated by EVGA was put on sale in China. The new SuperNOVA 1000 G3 is measured in this article.

Introduction to articles
1. Preamble
2. Unpacking
3. Dismantling
4. Testing
4 – 1. Voltage Stability
4 – 2. Conversion Efficiency, Light Load, Fan Speed and 5Vsb Standby
4 – 3. Cross Load
4 – 4. Ripple and Noise
4 – 5. Power – down Hold Time
5. Summary

EVGA’s second generation ” SuperNOVA G2″ power supply is based on Zhenhua Leadex scheme. Previous tests have shown that they have excellent and balanced performance. EVGA provides 7 – year or 10 – year warranty according to different models. The extra-long 10 – year warranty service was later followed by other power brands.

The third generation of ” SuperNOVA G3″ power supply updated by EVGA at the end of 2017 is based on Zhenhua Leadex II scheme, which is currently not used by other brands and should be exclusively owned by EVGA. The obvious change in appearance of ” SuperNOVA G3″ is the shortening of the shell length. The length of the SuperNOVA1000 G2 is 200mm, and the SuperNOVA 1000 G3 is shortened to 150mm ( as shown in the following figure, quoted from the 360buy.com product page of EVGA ), which is convenient for installation in more small-sized chassis.

The current retail price of EVGA SuperNOVA 1000 G3 in Jingdong is 1469 yuan. Based on the differences in specifications and performance, EVGA adopts the strategy of ” no replacement”. after the third generation of SuperNOVA power comes on the market, and the second generation of SuperNOVA power are sold on the market at the same time, users can choose according to their own budget and needs.

Technical features and selling points:– 80Plus gold medal ( although this is not really written on the label of the packaging box, only the logo is printed, but I still want to write it out )
– All – day capacitor
– ECO temperature control system
– 130mm hdb fan
– 150mm length fuselage
– intel haswell support
– ultra low output ripple and noise
– APFC+LLC Resonant +DC2DC Design
– Rated1000W@50Output capacity at ℃
– Output voltage load adjustment rate is less than 1%
– Single +12V, output capacity 83.3A/999.6W
– support for nvidiasli / amd crossfire
– Fully modular interface compatible with SuperNOVA G2 module line
– comply with eu ErP Lot6 2013 energy code
– Comply with Intel ATX12V v2.32 & ESP12V v2.92 standard
– Over current, over voltage, low voltage, over power, short circuit, over temperature protection
– 10 – year warranty ( 10 – year renewal )

EVGA SuperNOVA 1000 G3 power supply specification

2. UnpackingEVGA products are packaged with dark gray themes, board cards and power supplies. The word ” 1000 G3″ of this SuperNOVA 1000 G3 uses dark blue cosmic style fonts, which are mysterious and scientific.

Printed on the back of the packaging box are the product features written in many languages.

The product features of simplified Chinese and traditional Chinese versions are printed on self-adhesive tape and then pasted on one side of the box, which is a flexible processing method to adapt to sales in multi-country markets. The product features column on the specification label does not list the 80Plus gold medals ( although several logo of 80Plus gold medals are printed on the packaging box ), but I think this indicator is still relatively important. at present, conversion efficiency is still a major parameter that users consider when purchasing power supply. I sum it up in the above product technical features and selling points. On the other side of the box is an ECO temperature control diagram.

EVGA SuperNOVA 1000 G3 is unpacked. The instructions are in Chinese. Users can spend some time reading and have some knowledge about the installation and temperature control of power module wires. The power supply itself is carried by pearl wool, and the packaging is quite reliable.

All wires and accessories in the power pack are shown in the following figure except pearl cotton which is not out of the mirror. Including instructions, hook and loop cable ties, power detection tools, wire storage bags, mounting screws, silica gel desiccant.

For module wires, the wires matched with 1000W power supply are more abundant. Please refer to the specification table above for length and number of connectors. The 24Pin uses 16AWG wire, while the others are 18AWG, and the end of the 12V wire is added with an additional filter capacitor.

The main body of EVGA SuperNOVA 1000 G3 power supply is covered with a layer of non-woven fabric to ensure that the appearance will not be worn during transportation.

EVGA SuperNOVA 1000 G3 power supply main body, coarse sand blasting and baking varnish shell, and fan air intake grid like a gas stove ( EVGA not only displays the heat dissipation fan like a gas stove, but also the power fan air intake grid like a gas stove, which should be the brand design style ).

The EVGA SuperNOVA 1000 G3 power supply has a casing length of only 150mm, which is a small square.

On the interface side of the EVGA SuperNOVA 1000 G3 module, it needs to be specially reminded that according to the module power cord specifications owned by the EVGA official website, the third generation EVGA SuperNOVA is the power supply ending in G3 at the back of the model, and the module lines of the second generation G2, P2, T2 power supply can also be used. As for the third generation P3 and T3 which are still not listed, I estimate that they can also be used in backwards compatibility, and this part will be updated later.

The EVGASuperNOVA 1000 G3 power supply has an air outlet side, and the ECO temperature control switch is also set on this side.

On the back of the power supply, the model of the product is sprayed and several serial number labels are affixed.

The air intake grid inherits the EVGA’s gas stove style, and the heat dissipation fan is 130mm(128mm ) in size, which is a very rare fan specification. The general power supply is either 120mm or 135/140mm, and the fan blades are covered with EVGA’s E-logo. It can be seen that this heat dissipation fan is customized by EVGA, and the disassembly and test sections are further introduced.

3.DismantlingSummary
Manufacturer: Zhenhua
Scheme: Leadex II
Fans: EVGA, H1282412H, 128mm, 12V, 0.35A, HDB fluid dynamic bearing
Transient filtering: 4x Y capacitor, 3x X capacitor, 2x common mode choke, 1MOV
Rectifier bridge: 1x shindengen u30k80r ( 800 v / 30a @ 97 ℃ with heat sink )
Surge current protection: fuse, NTC thermistor, relay
Main capacitance: Nippon Chemi-Con CE series ( 400V /820uF /@105℃ )
APFC:2x Infineon IPA50R140CP (550V / 15A @100℃ / 0.14Ω)
1x Cree C3D10065II (650V / 10A @125℃)
Main switch tube: 2x Infineon IPA 50R140CP ( 550 V / 15A @ 100 ℃ / 0.14Ω )
+12V Rectification: 4X Infineon IPP 023 n04 nG ( 40V / 90A @ 100 ℃ / 2.3MΩ )
5V/3.3V:8x Infineon BSC0906NS (30V / 40A / @100℃ / 4.5mΩ); PWM master: 2xon semiconductor ncp1587a
Filter capacitor: Nippon Chemi-Con KY / W / KZE / KRG series electrolytic capacitor, NipponChemi-Con solid-state capacitor
PFC master: infilon 3pcs2 + s9602
Main control: SF29605 + S9602
Regulatory ics: sf29605 ( possible ), LM324ADG, LM339A
5Vsb PWM master: 29604
5Vsb rectifier: Mospec S10C60C

EVGA SuperNOVA 1000 G3 is based on Zhenhua’s Leadex II platform. Overall, it has many similarities with Leadex generation, but there are also many improvements. The circuit changes are the use of the new SF29605+Infineon 3PCS02 master control, the improved compact layout design, and the use of a smaller size 130mm HDB cooling fan.

Let’s look at the fan first. The model of the EVGA fan is H1282412H, 128mm, 12V/0.35A, HDB fluid dynamic bearing. The logo on the label is the EVGA logo instead of the logo of the factory. There are also perfect safety regulations. As an old driver for so many years, I can see from the steel seal that the fan was made by the G factory. One side of the fan is fixed with a plastic baffle with a pressure relief hole to prevent airflow short circuit. The test section has speed analysis.

The connection line of the temperature control switch of the fan and the power line of the fan are all covered with heat shrinkable sleeves for reinforcement and insulation treatment. The wiring of the temperature control switch is fixed above the insulation blocking piece. The temperature control switch also adopts a pin joint and is insulated by a rubber cap. The material selection and detail treatment are in place.

Overall layout:

EVGA SuperNOVA 1000 G3 primary EMI circuit. Surge protection device uses the combination of safety tube +NTC thermistor + relay +MOV varistor. The rectifier bridge is a new element U30K80R (800V / 30A @97℃ ) with radiating fins on both sides. In case of radiating fins, the rectifier bridge should have sufficient allowance for 1000W output.

The main capacitor is CE series of daily chemical products, 400V/820μF/105℃, which is not particularly high when measured by the traditional empirical capacity / wattage, but it is still necessary to judge whether the dosage is sufficient by the following test links.

The APFC part is composed of 2 Infineon IPA 50R140CP ( 550 V / 15A @ 100 ℃ / 0.14Ω ) switch tubes, TO-220PF insulation package, PFC boost diode is Cree silicon carbide Schottky diode, model C3D10065I (650V / 10A @125℃ ).

The main switch tube is 2 Infineon IPA 50R140CP ( 550 V / 15A @ 100 ℃ / 0.14Ω ), which is also a TO-220FP package. In order to adapt to Fanless mode, EVGA SuperNOVA 1000 G3 uses many heat sinks with punched holes. The heat sink of the Leadex generation tested before did not have openings at the beginning. Later, according to different models, it evolved into openings on both sides to increase the heat exchange area. The Leadex II has openings on both sides and in the middle and is heightened to exchange for a larger heat exchange area.

Transformers are specially made for Zhenhua and integrated with resonant inductors. They are made by Leeds wire winding.

+12V rectification to 4 Infineon IPP023N04N G (40V /90A@100C / 2.3m Ω ), two upper and two lower bridges are installed on the heat sink in pairs.

The +12V heat sink adopts a fin – opening method to increase the heat exchange area, and at the same time, a punched copper sheet is welded on the PCB board to enhance heat dissipation.

Two DC2DC.

DC2DC master.

5Vsb standby circuit.

Main control sub – board.

PCB back work.

Module wiring board uses a large number of daily chemical solid + electrolytic capacitors for filtering.

4.test
The instruments used in the test are Chroma 8000 series SMPS automatic power supply test system, Tektronix digital oscilloscope and photoelectric tachometer. Among them, Chroma 8000 includes 9 groups of 63640 – 80 – 80, 2 groups of 63630 – 80 – 60 and 1 group of 63610 – 80 – 20 programmable DC electronic loads with a test load capacity of 4300W W. It is currently the most advanced power supply test system in China.

The increased overload test overload range is 10%, and the power supply of 1000W is overloaded to 1100W W. It is mainly to check whether the power supply will trigger protection and stable output. The output voltage value is not included in the calculation of voltage deviation and load adjustment rate.

The current setting for the static load balancing of the EVGA SuperNOVA 1000 G3 power supply is as follows:

The test results of static load balancing of EVGA SuperNOVA 1000 G3 power supply are summarized as follows:

4-1.Voltage stability
The Intel ATX12V specification has clear requirements for the output range of each group of voltages. The output ranges of +12V, +5V, +3.3V and +5Vsb shall not exceed 5% and the requirements for -12V shall be 10% in the whole load range.
Voltage Stability of EVGA SuperNOVA 1000 G3 Power Supply Balancing Load:

The maximum deviation of 12V is 1.9%, and the load adjustment rate is 0.25%.

Now my database has been increased to 7 power supplies. In this evaluation, 5 of them are also EVGA power supplies for comparison. More power supplies will be added one after another. Just look at the chart for the performance of the power supply.

The maximum deviation of 5V is 0.98%, and the load adjustment rate is 0.62%.

The maximum deviation of 3.3V is 0.58%, and the load adjustment rate is 0.48%.

4-2.Conversion efficiency, light load, fan speed and5VsbStandby
4 – 2 – 1. Load Balancing Efficiency

The test conditions of conversion efficiency and voltage test of balanced load are both measured under 230 VAC and 50 Hz environment, and the current configuration is consistent.

The conversion efficiency of EVGA SuperNOVA 1000 G3 power supply is 75.14% at 30W, 82.2% at 50W, 88.15% at 100W, 92.58% at 400W, and 91.39% at 1000W full load. The average conversion efficiency of 100W-1000W full load output is 91.96%.

4 – 2 – 2. No – load and light load
The light load tests are power DC outputs 12W, 30W, 50W, 75W and 100W respectively.
Among them, 12W is the power consumption of the analog low power consumption platform, which can only be achieved by a few minimized low power consumption ITX/STX platforms in standby state.
30W and 50W represent the power consumption of most PC platforms in desktop standby, 75W and 100W are typical light-load application power consumption, representing web browsing and Office office applications.
The test mainly evaluates the voltage stability of the power supply, and the three main output voltages must be within 5% of the Intel ATX12V specification. In addition, the conversion efficiency and fan speed are obtained.

The maximum deviation of 12V, 5V, 1.02% and 3.3V for the EVGA SuperNOVA 1000 G3 power supply in the test is 1.91%, 0.61% respectively.

The average conversion efficiency of EVGA SuperNOVA 1000 G3 power supply from 30w to 100w is 83.68%.

The EVGA SuperNOVA 1000 G3 power supply supports Hybird Mode temperature control. The fan stops running before half load, and the test for light load part also includes it. It basically does not rotate at other times except for a turn on.

4 – 2 – 3. Fan Speed
The EVGA SuperNOVA 1000 G3 power supply uses a heat dissipation fan, model H1282412H, which is a 128mm size fan using HDB(Hydro Dynamic Bearing ) fluid dynamic bearing, with a working voltage of 12V, a rated current of 0.35A and a maximum rotation speed of about 2200RPM, and belongs to a high rotation speed heat dissipation fan. The fan blade is shaped like a 7 – leaf sickle and belongs to the design of wind pressure type. The fan blade has the exclusive E-logo of EVGA. Fan label has perfect safety regulations certification and product quality inspection stamp.

The ECO temperature control switch button of EVGA SuperNOVA 1000 G3 power supply is set on the side of the power outlet.

When the room temperature is about 26 ℃, the temperature cOntrol switch is turned on to enter ECO temperature control mode. the fan will not start until 350W. the starting speed is 1580RPM. when the temperature control switch is turned Off, the fan will start at 1075RPM and increase to 1820RPM at full load and constant speed.

The range of fan – free mode is 0-350W, and the temperature control mode used by users of single CPU and single graphics card will not trigger fan startup.

4-2-4.5Vsb Standby Efficiency
The requirements for 5Vsb in Intel ATX12V v2.31 specification are: standby no-load consumption is less than 1W, and conversion efficiency should be higher than 50%, 60% and 70% under the load of 0.1A, 0.25A and 1A.
The 5Vsb of EVGA SuperNOVA 1000 G3 power supply consumes 0.13W of input power when it is unloaded, which can meet the European union’s ErP Lot 6 2013 standard, and the efficiency of 0.1A, 0.25A and 1A can also meet the requirements of Intel atx2.31 ..

When 5Vsb is not turned on, the maximum deviation is 1.36%, and the load adjustment rate is 1.5%, showing good performance.

4-3.Cross load
Cross load is designed according to Intel ATX12V 2.31 and SSI EPS12V 2.92 power supply design guidelines, combined with recent high-power discrete graphics cards and low-power ITX/STX platforms.

The test was divided into 7 files:

Load 1 – Overload: Overload to 1120W, and test the voltage stability of each circuit when overloaded.
Load 2-5V Pull Bias: Limit Pull Bias, Test Voltage Stability under 5V Full Load, 12V, 3.3V No Load.
Load 3-3.3V Bias: Limit Bias, Test Voltage Stability of 3.3V Full Load, 12V, 5V No Load.
Load 4 – light load of the whole machine: test the voltage stability when the whole machine is under extremely low load.
Load 5 – Full load of auxiliary circuit, 12V light load: 5V, 3.3V maximum load, 12V light load, simulating the simultaneous startup of multiple mechanical hard disks.
Load 6 – Full load of the whole machine: 12V, 5V and 3.3V are pulled to the maximum load at the same time to simulate full load of the whole machine;
Load 7 – Lay Stress on 12V, Light Load on Auxiliary Roads: 12V Maximum Load, 5V, 3.3V Light Load, Simulate Extreme Overclocking, or Use Single SSD to Run 3D Games;

Cross load is also mainly used to check the stability of the output voltage of the power supply. The output voltage must be within the range of 5% specified by Intel ATX12V specification. The smaller the voltage deviation from the rated value, the better. The load regulation rate is the voltage drop condition, and the smaller the value, the stronger the voltage stability.

In the cross-load test, the 12V setting of EVGA SuperNOVA 1000 G3 power supply is slightly higher than the rated voltage, and the voltages of each group are stable in the pull-off test.

4 – 4. Ripple and Noise
Ripple & Noise is also an item that attracts much attention. Excessive ripple will disturb the digital circuit and affect the stability of the circuit. From ” the hard disk with too much ripple has bad areas” to ” the ripple is unstable and explodes everywhere” ( note: here it should be ripple, not ripple ), which is enough to show the importance ordinary users attach to it.

Ripple and noise are AC components in power supply DC transmission. Part of them may be AC components that still exist after AC power is rectified and stabilized. Part of them is switching noise generated by circuit transistors themselves. If the voltage is observed by oscilloscope, it can be seen that the voltage fluctuates like water ripple, so it is called ripple.

Intel ATX12V v2.31 stipulates that the Vp-p of output ripple and noise of +12V, +5V, +3.3V, -12V and +5Vsb shall not exceed 120mV, 50mV, 50mV, 120mV and 50mV respectively. This test is mainly aimed at 12V, 5V, 3.3V and 5Vsb, and does not require -12V. The test uses a digital oscilloscope to measure at the measuring point of the jig board in parallel with decoupling capacitors according to Intel ATX12V v2.31 specifications under an analog bandwidth of 20MHz.

Seven meaningful gears were selected in the test. 50W stands for desktop standby, 100W stands for office and Internet access, 300W stands for single graphics card games, and full load and pull bias are the conditions when the power supply is under the highest load.

The test current configurations of 50W, 100W, 300W and 1000W are the same as the balanced load, while the current configurations of 12V pull – off, 5V pull-off and 3.3V pull-off are the same as the full load limit pull-off of 3rd gear in the cross load test.

Oscilloscope screenshot:

Channel 1, channel 2 and channel 3 are the ripple screenshots of 12V, 5V and 3.3V from top to bottom.

1000W full load ripple: 12V Vp-p value 12.6mV, 5V Vp-p value 13.2mV, 3.3V Vp-p value 11.6 mv.

Thanks to excellent design and materials, plus the use of additional filter capacitors on the output wire, the noise at light load is almost only a few mV larger than the bottom noise of the oscilloscope, while at full load it is only more than 10 mV.

4-5.Full load holding time
Hold-up Time refers to the time when the main DC voltage output value drops by 5% after AC power failure. According to Intel ATX12V v2.31 standard, for the requirement of increasing the output voltage of each group by 1ms, the hold-up time for power failure shall not be less than 17ms when the power supply is at full load output. According to Intel’s regulations, the power-down holding time of PWR-OK ( i.e. Power-Good signal, PG ) is also greater than 16ms.

This means that in the face of AC power failure within 16ms or the gap between switching to UPS, the power supply can maintain the operation of the computer without shutdown or restart. At the same time, in order to maintain the normal operation of other hardware, the power failure holding time of DC voltage must be longer than that of PG. Otherwise, other hardware cannot maintain the normal operation state, or it is too late to take emergency measures such as mechanical hard disk head homing, SSD power failure protection, etc.

The test current configuration is the same as that of the full load of 1,000 W with balanced load. The retention time of 12V, 5V and PG is mainly checked. If the subsequent SSD uses 3.3V more, the retention time test of 3.3V will be considered.

The holding time test results of EVGA SuperNOVA 1000 G3 power supply are as follows:

The power-down holding time of several voltages of EVGA SuperNOVA 1000 G3 power supply meets the specification requirements of Intel ATX12V. Due to sufficient optimization of the scheme, the holding time is still sufficient, with 5V even reaching nearly 50ms under full load.

Oscilloscope screenshots and comparisons:

12V

5V

Power-Good

5.Summary

Looking at commercial PC power supplies, the length of standard ATX power supplies is mostly about 160mm, the minimum length of ultra-short ATX power supplies is 140mm, products of 150mm can be seen for small wattage, ATX power supplies of medium and high wattage are mostly about 170mm, high-end kilowatt-level power supplies are directly running for 200mm or even 225mm, and module line connectors are inevitably added 10mm more, so installation may encounter obstacles. At present, miniaturization chassis is popular, and many Mini-ITX chassis simply cannot accommodate large-sized power supplies, so the selection surface is much smaller. On the premise that the performance meets the demand and the quiet heat dissipation also meets the demand, the miniaturization of power supply will bring convenience to the installation process, which is the general trend. EVGA SuperNOVA 1000 G3 is a new product refined and improved according to market demand under such a background. The shell length is reduced from 200mm in the previous generation to 150mm, reducing by 25%.
Miniaturization is premised on the support of the new scheme. The EVGA SuperNOVA 1000 G3 uses the new Leadex II scheme, with a more compact layout, stable and progressive performance compared with the previous generation of products, good performance in voltage load adjustment rate and ripple noise control, and power-down retention time maintained at the same level. The conversion efficiency is especially lighter than that of SuperNOVA G2, and the performance of SuperNOVA P2, which is close to the white gold medal ( after all, the Leadex II plan should also go to the titanium gold level ).
In terms of materials, EVGA SuperNOVA 1000 G3 uses full-system daily capacitors with Infineon tubes. Based on the analysis of the low-frequency component Vp-p amplitude of ripple and power-down holding time, Leadex II scheme does not need to rely on large-capacity main capacitors to stack performance. At present, the amount of main capacitors is sufficient, and the ripple control and holding time performance shown by the power supply is satisfactory enough.
In terms of price, the current retail price of EVGA SuperNOVA 1000 G3 on JD.com is 1469 yuan, which is close to 1.5 as measured by the traditional price / wattage ratio. however, EVGA products have relatively high added value, such as a 10 – year – long renewal warranty service.

EVGA SuperNOVA 1000 G3 Rating: T2, Update Date 2018 – 02 – 12.

Note: There are 7 grades of power supply from T0 to T6. According to the plan, performance, noise, quality assurance, price, reliability and even time span and other factors to give a dynamic rating to the power supply. T0 is the strongest reserved level, reserved for some epoch-making products or some non-retail MOD products with exceptionally strong performance. T1 is the top product in the traditional sense, T2 is the product with excellent and reliable performance, of course, T6 is the weakest level. Since it is a dynamic rating, the rating will also change over time.

Advantages:

– 10 – year new warranty service;
– 150mm ultra-short shell kilowatt power supply;
– Long retention time;
– Excellent ripple control;
– 80Plus gold medal efficiency, light load efficiency is good;
– Good voltage stability;
– Clean workmanship and generous materials;
1000W@50The output capacity of C;
– fan low load shutdown technology;
– Full module, compatible with the same brand product module line;

Inadequacies:
– When the fan is fully loaded, the wind noise is obvious;

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