As early as January 2016, EVGA released the SUPERNOVA T2 series flagship power supply. The first products are rated power 750/850/1000W, and subsequently added a rated power 1600W model. Not only did they stand out as the most popular when they were released, but they are still products that stand at the top of PC power supply even today. With EVGA spreading channels in the domestic market, this series of power supplies is no longer out of reach for domestic players, but is a product that is truly in front of you. Therefore, today we will have an in-depth look at this flagship-level power supply product and see what secrets it has to touch the hearts of players.
EVGA SUPERNOVA 1000 T2 power supply
Today I will show you the EVGA SUPERNOVA 1000 T2 power supply, which is an ATX structure power supply with a length of 18cm. This length is still very common on high-power flagship ATX power supply, but there will be certain requirements for the installation space of the chassis. Its appearance design is exactly the same as other products of the same school. It has a frosted shell and a full module wire design, equipped with a 14cm diameter cooling fan , with a rated power of 1000W, and has passed the 0Plus titanium certification. It is currently priced at 2,199 yuan, and enjoys a 10-year warranty service.
EVGA SUPERNOVA 1000 T2 power supply
frosted texture shell
EVGA SUPERNOVA 1000 T2 power supply supports 100V to 240V AC input, adopts a single +12V design, with an output current up to 83.3A; +5V and +3.3V are DC to DC designs, with an output current up to 20A, and a combined output power of 100W; +5V standby output is up to 2.5A.
power supply adopts a full module interface design. The switch in the lower left corner is used to switch the intelligent temperature control mode of the power supply fan
power supply adopts a full module wire design, with a total of 14 module wires and 1 adapter wire. Except for the adapter wire, the rest of the wires are designed with braided net wrapping, providing a 24pin main power supply module wire, with a length of 600mm; 2 4+4pin CPU power supply module wire, with a length of 750mm; 2 1 6pin PCI-E power supply plus 1 6+2pin PCI-E power supply dual interface module wire, with a length of 900mm; 4 6+2pin PCI-E powered single-interface module cable, with a line length of 750mm; 3 module cables with 4 SATA powered interfaces, with a line length of 850mm; 2 module cables with 3 D-type 4Pin interfaces, with a line length of 750mm; and 1 D-type 4pin to small 4pin adapter cable, with a line length of 100mm.
power input interface is equipped with independent switches
EVGA SUPERNOVA 1000 T2 power supply is equipped with 14cm silent cooling fan
EVGA SUPERNOVA 1000 T2 power supply disassembly and appreciate
EVGA SUPERNOVA 1000 The fan used in the T2 power supply is Globe Fan RL4Z B1402512HH, with a specification of 12V 0.5A, 7 fan blades and double ball bearings, the maximum speed is 1800RPM. In terms of fan blade shape, it is a wind pressure fan, and the speed is achieved by adjusting the input voltage.
EVGA SUPERNOVA 1000 T2 power supply supports low temperature and low load fan stop technology. When the fan temperature control ECO mode is turned on, the power supply cooling fan is in a stop state when the power output power is low, so as to reduce the operating noise of the power supply as much as possible.
EVGA SUPERNOVA 1000 T2 power supply is manufactured by Zhenhua. It adopts the currently rare circuit scheme of bridgeless PFC+LLC full-bridge resonance + synchronous rectification +DC to DC. This is the highest-specified scheme used on the Zhenhua Leadex series. It has a large number of components but is arranged very neatly and orderly. The solder joints on the back of the PCB are full and neat
AC socket and power switch are installed on an independent PCB, but there is no EMI component here
EVGA SUPERNOVA 1000 T2 power supply EMI circuits are all arranged on the main PCB, with a total of 2 pairs of Y capacitors, 3 X capacitors and 2 common mode inductors. The MOV is located between the two common mode inductors, and the fuse is at the front end of the EMI circuit, and the NTC is equipped with an independent relay behind the second common mode inductor. There is a rectifier bridge, but it does not participate in the main power supply of the power supply. In fact, it is only reserved for +5V standby use. The model is U30K80R, 800V/30A specifications.The main capacitor of the
EVGA SUPERNOVA 1000 T2 power supply is the daily chemical KMW series, with a total of 3, of which 2 are 390μF/400V/105℃, and 1 is 330μF/400V/105℃, with an equivalent capacity of 1110μF. Materials used for more than 1μF/W are basically standard for power supplies of this level.
power supply adopts the bridgeless PFC
EVGA SUPERNOVA 1000 T2 power supply adopts the bridgeless PFC+LLC full-bridge resonance + synchronous rectification + DC to DC solution. The characteristic of this solution is that there is no rectifier bridge, and the efficiency of the circuit is improved through the alternating working of the two sets of PFC circuits. Although the complexity and materials of the circuit are higher than that of traditional active PFC, this bridgeless PFC topology has higher efficiency, which is more conducive to the PC power supply's conversion efficiency.
Both sets of PFCs are arranged on independent PCBs. Both PCB daughterboards are covered with aluminum heat sinks. There are 4 MosFETs from Infineon below. However, if it is not destructively disassembled, we cannot determine its specific model. The two chips not covered by the heat sink are Boost diodes, Infineon's silicon carbide Schottky diode D0665C5, with a specification of 650V/6A.
There is also a smaller PCB daughterboard next to the bridgeless PFC circuit. It is the PFC main control SF29603
The power supply adopts the LLC full-bridge resonance architecture. The main switch tube is located next to the main capacitor. There are 2 Infineon MosFETs on each of the two PCB boards. The model is IPP50R199CP, the specification is 550V/11A@100℃/0.199Ω, and there is no heat sink.
resonant master control is SFAA9013
EVGA SUPERNOVA 1000 T2 power supply uses two customized main transformers printed with EVGA logo. Behind the transformer is a 4+12V synchronous rectification sub-PCB. Each PCB is equipped with 2 Infineon BSC027N04LS chips, with specifications of 40V/100A/2.7mΩ.
+12V synchronous rectification has 4 chip PCBs, equipped with FPCAP solid-state capacitors and daily-chemical electrolytic capacitors for filtering
+5V and +3.3V DC to DC circuit is configured with independent PCB and is arranged on both sides of the main power supply PCB
One of the DC to DC sub-PCB and +5V standby circuit and fan control circuit are arranged together
+5V and +3.3V DC to The DC circuit adopts an independent PCB design, each equipped with 4 Infineon IPD060N03L, 30V/50A/5mΩ specifications, supplemented by daily chemical solid-state capacitors and daily chemical electrolytic capacitors as filtering. One of the DC to DC sub-PCB is arranged together with the +5V standby circuit and the fan control circuit. The +5V standby is equipped with a daily 16V/3300μF electrolytic capacitor for filtering. The MosFET is PFR40V60CT, the specification is 60V/40A, and the control chip model is 29604. The module interface of
power supply adopts a plug-in design, equipped with FPCAP solid-state capacitors and Nigikan electrolytic capacitors for filtering
EVGA SUPERNOVA 1000 T2 power supply test
balancing load test data summary
conversion efficiency:
EVGA SUPERNOVA 1000 T2 power supply has passed the 80Plus titanium gold certification. In our test environment, its low load conversion efficiency at 115V input voltage will be higher than that at 230V input voltage. A little higher, until the output power exceeds 150W and the conversion efficiency at 230V voltage is over. At the 230V input voltage, when the power supply output power reaches 100W, its conversion efficiency has exceeded 90%, the subsequent output maximum conversion efficiency reaches 94.78%, and the overall average efficiency is 93.6%, which is consistent with the 80Plus Titanium Gold Certified Power Supply.
standby efficiency
According to the recommended value in the Intel ATX12V 2.31 specification, the conversion efficiency of 5Vsb under the load of 100mA/250mA/1A should be higher than 50%, 60%, and 70%, and the standby no-load input should be less than 1W.
5Vsb power consumption and efficiency
5Vsb actual output voltage
EVGA SUPERNOVA 1000 T2 power supply has excellent standby output efficiency and voltage, and the no-load input 0.35W is also a very good performance, and basically there is nothing to be picky about.
cooling fan speed:
In terms of fan speed and noise control, the EVGA SUPERNOVA 1000 T2 power supply supports intelligent temperature control, and also supports the function of low-load fan stopping, that is, ECO mode.From our tests, we can see that when ECO mode is turned on, the cooling fan is in a stop state before the power output reaches 450W, and after the output power exceeds 450W, its fan starts to rotate, with the starting speed at 1100RPM. After the output power reaches 650W, the fan speed will gradually increase with the increase of the output power. The full load speed is around 1200RPM to 1300RPM, and the noise is still very low. After turning off the ECO mode, the power supply no longer provides a low-load fan stop function. Before the output power reaches 650W, the fan will maintain a speed of about 1100RPM, and then gradually increase as the output power increases. The full-load speed is also between 1200RPM and 1300RPM.
Voltage Stability:
+12V Voltage Curve
+5V Voltage Curve
+3.3V Voltage Curve
in EVGA SUPERNOVA 1000 The output voltage stability performance of the T2 power supply is commendable. The +12V output voltage deviation is 2% level. This is mainly set to improve the conversion efficiency. It can also make up for the voltage drop that may occur when replacing third-party customized module lines; the voltage deviation of +5V and +3.3V is controlled at a good level, and none of them exceeds 1%; and in terms of adjustment rate, the performance of the three channels is very excellent. The fluctuation of less than 1% means that the voltage is very stable, which is indeed the level of top power supplies.
ripple test:
ripple and noise are AC components mixed in the DC output of the power supply. If you observe with an oscilloscope, you will see slight fluctuations up and down of the voltage, like water ripple, so it is called ripple. According to Intel ATX12V 2.3.1, the output ripple of +12V, +5V, +3.3V and Vp-p (peak-peak) of noise shall not exceed 120mV, 50mV, and 50mV, respectively. Excessive ripple will interfere with the digital circuit and affect the stability of the circuit's operation.
We use a digital oscilloscope to measure the power supply with a 20MHz analog bandwidth according to Intel specifications and connect the decoupling capacitor to measure the power supply with full load ripple. The oscilloscope screenshots are divided into waveforms at low frequency and power switching frequency. The ripple peak and peak value at low frequency is used as the scoring reference, and the ripple waveform and measured value at switching frequency are used as reference. The low-frequency ripple of the +12V, +5V, +3.3V at full load is 23mV, 22mV and 17mV. The ripple control of the three main outputs meets the standards and performs excellently. Of course, for this level of power supply, +5V ripple exceeding 20mV means that it actually has room for optimization. After all, our expectation is to be controlled at a lower level.
Cross Load Test:
Cross Load Test Project We selected 4 test points with practical significance according to the requirements of Intel ATX12V 2.3 and SSI EPS12V 2.92 power supply design guidance, and formulated a cross load chart for 850W power supply. The meanings of the four points of
are: the lower left corner of
(point A): the minimum load of the whole machine; the upper left corner of
(point B): the maximum load of the auxiliary circuit and the minimum load of 12V, such as the case of multiple mechanical hard disks being started at the same time; the upper right corner of
(point C): the maximum load of the auxiliary circuit and the full load of the whole machine; the lower right corner of
(point D): the maximum load of the auxiliary circuit and the minimum load of the auxiliary circuit, such as the case of running a 3D game with a single solid state hard disk; the X coordinate of the
test point represents the total output power of +12V, and the Y coordinate represents the sum of the output power of +5V and +3.3V, and the cross load test is consistent with the evaluation criteria of the previous uniform load test.
1000W Cross-load Load Chart
EVGA SUPERNOVA 1000 T2 power supply uses DC to DC design on +5V and +3.3V outputs, so its performance in cross-load (pull-off test) meets the standards. Except for +12V, which has a voltage deviation of about 2% due to factory settings, the voltage deviation of the other two channels can be controlled within 1% throughout. However, from the perspective of adjustment rate, they are all very excellent, and there are almost no obvious voltage fluctuations.
hold time test:
Power-down hold time (Hold-up Time) refers to the time when the voltage output value drops out of the range after the power supply is powered off. We measure the hold time of +12V, +5V and Power-OK (Power-Good) signals.The requirement for the output voltage holding time in the
SSI EPS12V 2.92 server power supply design guidance is that the power supply holding time should be greater than 18ms under 75% load, while the Power-OK signal holding time requirement is greater than 17ms.
power-down hold time is so concerned because it is largely related to the life of the hardware. Maintaining Power-OK for 17ms means that when the power-down situation is within 17ms, the computer can continue to run without shutting down or restarting. The voltage of each channel is maintained for 18ms or longer, so that each hardware can perform emergency treatment when the power down occurs, such as the head return of the mechanical hard disk and the power-down protection of the SSD.
EVGA SUPERNOVA 1000 T2 power supply hold time is measured at 75% load (DC output 750W).
For +12V and +5V, the qualified standard is that the holding time is equal to or greater than 18ms, and the Power-OK (or PG, Power-Good) time should be equal to or greater than 17ms. The +12V of EVGA SUPERNOVA 1000 T2 power supply is 35.2ms, +5V is 88ms, and Power-OK is 28.3ms. The holding time of the three main outputs meets the standards and has sufficient margin, especially the +5V hold time. The 88ms score can be said to be very amazing.
EVGA SUPERNOVA 1000 T2 power supply score and comments
EVGA SUPERNOVA 1000 T2 power supply obtained a super power index of 93.02 points in the test. According to our current scoring standards, this result means that the power supply has reached the level of top products, which is also completely consistent with the self-positioning of the EVGA SUPERNOVA 1000 T2 power supply.
EVGA SUPERNOVA 1000 T2 Super Power Index
EVGA SUPERNOVA 1000 T2 power supply has excellent performance in various test projects. The hard indicators such as voltage stability, conversion efficiency, and holding time are impeccable. Only the voltage ripple of +5V output is a little higher than what we expected. In addition, although the length of 18cm may cause some installation inconvenience, it is basically not a problem for players who can choose this level of power supply. Chassis of similar levels can basically be equipped with power supply of this length.
Therefore, for players who pursue the ultimate power efficiency, although the EVGA SUPERNOVA 1000 T2 power supply is priced at 2,199 yuan, it is indeed an ideal choice in terms of performance. In addition, the 10-year warranty is enough to reflect EVGA's confidence in this power supply. If you have a fever-grade platform on your hands and also need a high-performance high-power power supply, I believe the EVGA SUPERNOVA 1000 T2 power supply will be your best choice.
√ Advantages:
- Full module design
- 80Plus Titanium level efficiency
- Excellent voltage stability
- Excellent ripple suppression
- Excellent noise control, supports low-load fan stop
- Very sufficient hold time
× Disadvantages:
- 18cm length has certain requirements for the chassis
