Power supplies with a power of more than 850 W can hardly be called a popular product, and even more so models with 1200 W. But despite this, the number of offers of such devices in our market is at a high enough level not to talk about their complete lack of demand. Basically, such blocks are taken to power systems with multiple graphics adapters.
We got one of these devices for testing, namely Vinga VPS-1200Pl – the most affordable 1200 W power supply with a certificate of 80 Plus Platinum and a domestic brand.
|Energy Efficiency Certificate||80 Plus Platinum|
|Cable Connection Diagram||Modular|
|Channel power +12V, W (A)||1176 (98)|
|Channel power +5V, W (A)||100 (20)|
|Channel power +3.3V, W (A)||66 (20)|
|Combined power +3.5V and +5V, W (A)||100|
|Channel power -12, W (A)||3,6 (0,3)|
|Channel power +5Vsb, W (A)||15 (3)|
|Mains voltage range, V||110–240|
|Mains voltage frequency, Hz||47–63|
|Fan size, mm||120x120x25|
|Number of cables/connectors for CPU||2/2x EPS12V (4+4)|
|Number of cables/connectors for PCI-E||4/8x (6+2)|
|Number of cables/connectors for SATA||3/12|
|Number of cables/connectors for IDE||1/4|
|Number of connectors for FDD||1|
|protection||OVP, UVP, OPP, SIP, SCP|
|Dimensions (WxHxD), mm||152x86x190|
Our ward comes in a large gray-black box, the design of which resembles the decisions of famous manufacturers. On the front and back of the package, the power supply is shown, its main features are indicated in Ukrainian and the presence of certain connectors.
The kit includes a power cord, extended mounting screws, a set of detachable cables in a velor case, and the device itself is supplied in the same one.
The unit has a modular design, so all cables are detachable, including the power supply of the motherboard and processor. Their number is as follows:
- one to power the motherboard (66 cm);
- two with one 8-pin (4+4) connector for processor power (71 cm);
- four with two 8-pin (6+2) connectors for powering a PCI-E video card (50 cm);
- three with four power connectors for SATA devices (50+15+15+15 cm);
- one with four power connectors for IDE devices and one FDD (50+15+15+15+15 cm).
All cables are black and encased in nylon sheath. The length of the cables for powering the processor is long enough to install the VPS-1200Pl even in a Full-Tower case with a lower power supply, but for video cards I would like to be longer.
Externally, the device resembles one-to-one the previously reviewed Vinga VPS-650G model: the same continuous perforation, rounded edges and thick aluminum side walls.
But this time, the design is done in gray tones, not yellow, and there is a chamfer on the sides, exposing the silver color of the metal. Everything is made to match the 80 Plus Platinum certification.
Do not forget also that this model is also very large – its length is 190 mm, so when buying it, you need to make sure that there is no conflict with the case.
On the inner wall there are connectors for detachable cables, all of them are of different sizes, additionally signed, so it is unlikely to be confused when connecting.
According to its characteristics, the unit fully complies with modern standards, when all power is concentrated on the 12-volt line. On the + 12V line, it is capable of delivering almost all of its power, namely about 1176 watts. The combined power of the low-voltage channels is 100 W, 15 W is provided for the standby voltage, and 3.6 W for -12V. In general, a standard set of characteristics. Features of the block on the label are indicated in Ukrainian.
As already noted, the device in question has a high efficiency, it is also equipped with an active PFC and supports a wide range of input mains voltage. Of the declared protections, there are: from surges in the mains voltage, from low and high output voltage, from short circuits and power overload. There is an automatic fan speed control.
The block is disassembled not very willingly. Having removed the sides and the C-shaped cover with a fan, we see the same SAMA platform.
Its circuitry uses a resonant converter in the high-voltage part and a synchronous rectifier in the low-voltage part with independent output voltage stabilization. The non-standard layout, rotated 90 degrees, is immediately visible.
Like the younger model, this device is perfectly made, problem areas are filled with glue, only there is no drawing on the printed circuit board.
The input filter is partially implemented on the network connector.
For cooling key transistors, APFC elements and two diode bridges, one radiator is responsible, passing across the entire printed circuit board. For the synchronous rectifier transistors located on the reverse side, a thick busbar is provided wrapped around the pulse transformer. The latter is placed horizontally, exactly above the transistors and connected directly to them.
There is a temperature sensor on the bus-radiator, thanks to which the fan speed is adjusted.
Part of the heat from the synchronous rectifier is transferred through thick thermal pads to the power supply case. Again we see a piece of foam rubber, which has already been seen when inspecting the VPS-650G.
It is controlled by the CM6901T6X controller block, which is responsible for the resonant converter and synchronous rectifier. It is installed on a separate board. The active PFC is based on the CM6502UHHX chip, the “duty room” is implemented on the EM8569A. Weltrend WT7502V chip was installed as a supervisor.
DC/DC converters for low voltages are implemented on separate boards and are controlled by APW7073 PWM controllers.
The input circuit contains two Nippon Chemi-Con 560uF capacitances operating at 450V and 105°C. The remaining circuits contain capacitors from the same company. There are polymer capacitances in the output circuit.
The cable release board is connected directly to the main PCB via busbars. Some tracks on it are reinforced with jumpers and filled with solder. There are also a pair of polymer capacitors.
The soldering of the printed circuit board is very high quality, there are no “snot”, the flux is seen only in the area of \u200b\u200bthe tires, and then in a small amount.
The Vinga VPS-1200Pl is cooled by a 120mm Hong Hua HA1225L12F-Z fan, based on a hydrodynamic bearing and with a two-pin connection. The passport speed is 1800 rpm.
It spins at around 530rpm at system startup and idle, light game load increases the RPM by another 30rpm. The use of two voracious video cards and the simultaneous launch of calculations on the processor bring the speed up to 790 rpm, which is quite acceptable in terms of noise level. But already a full load is associated with an increase in the rotational speed up to 1550 rpm, and here you can’t call the block quiet.
The power supply was checked using a conventional system assembled from the following components:
- processor: Intel Core i5-8600K (4.3 GHz);
- motherboard: ASUS Maximus X Apex (Intel Z370);
- Cooler: Prolimatech Megahalems;
- RAM: HyperX HX429C15PB3AK2/16 (2×8 GB, DDR4-2933@3200, 16-18-18-36-2T);
- video card: GeForce GTX 1080;
- drive: Kingston SSDNow UV400 480GB (480 GB, SATA 6Gb/s).
Testing was carried out in the Windows 10 x64 environment on an open stand. To create a gaming load on the system, the Valley benchmark was used with maximum graphics quality, and for additional load, LinX 0.6.7 was launched in parallel.
Also, for maximum load, the following system was assembled:
- processor: Intel Core i7-975 (email@example.com GHz, Bclk 175 MHz);
- motherboard: ASUS P6T7 WS SuperComputer (Intel X58);
- cooler: Noctua NH-D14;
- RAM: Kingston KHX2000C8D3T1K3/6GX (3×2 GB, DDR3-2000@1750, 8-8-8-24);
- video cards: ASUS ENGTX295/2DI/1792MD3/A and Inno3D GeForce GTX 295 Platinum Edition (GeForce GTX 295);
- hard disk: Samsung HD502HJ (500 GB, 7200 rpm, SATA-II).
Here testing was carried out in the Windows 7 x64 HP environment on an open stand. The Tropics benchmark with 4x anti-aliasing and 16x anisotropic filtering enabled under game load was used to load the system, and the LinX program with a 1024 MB task was used for additional load, while Tropics was launched with AA2x and AF16x. To increase the power consumption, two more cards based on the Radeon R9 290 and Radeon RX 480 chips were additionally used, which functioned in the mining mode.
To measure the total power consumption of the system, the Seasonic Power Angel was used, which can also measure the power factor, voltage and frequency in the network, the consumed current and the amount of energy spent per unit of time. Net power consumption calculated based on 80 Plus certification – i.e. possible efficiency of the device. Errors in such calculations can be 5%. The voltages were checked with a UNI-T UT70D digital multimeter.
The temperature was measured using the Scythe Kaze Master Pro panel, the sensors of which were located on the radiators inside the block and at a distance of 1 cm in front of the fan (#1) and behind the outer wall (#2).
For fan speed results, a UNI-T UT372 non-contact tachometer was used. The maximum speed was fixed for each of the power supply testing modes.
It should be borne in mind that such a technique at this stage is far from ideal and will be supplemented and changed as it is used.
The obtained data are entered in the table. In brackets for voltage are percent deviations from the norm, for power consumption – the approximate net load on the power supply.
|Vinga VPS-1200Pl||GTX1080 (LGA1151)||GTX1080 (LGA1151)||GTX295SLI (LGA1366)||GTX295SLI (LGA1366)||GTX295SLI (LGA1366)||GTX295SLI + 2x Radeon (LGA1366)|
|Mode||Idle||Burn, Game+LinX||Burn, Game||Burn, Game+LinX||Burn, OCCT||Burn, OCCT|
|Power consumption, W||40,2 (~35)||337 (310)||648 (~605)||790 (~740)||1003 (~925)||1403(~1300)|
|Line +3.3V, V||3,34 (+1,2)||3,34 (+1,2)||3,37 (+2,1)||3,36 (+1,8)||3,36 (+1,8)||3,36 (+1,8)|
|Line +5V, V||5,04 (+0,8)||5,04 (+0,8)||5,05 (+1)||5,06 (+1,2)||5,06 (+1,2)||5,07 (+1,4)|
|Line +12 (MB), B||12,06 (+0,5)||12,04 (+0,3)||12,01 (+0,1)||12||11,99 (–0,1)||11,98 (–0,2)|
|Line +12 (CPU), V||12,06 (+0,5)||12,06 (+0,5)||12,05 (+0,4)||12,02 (+0,2)||12,02 (+0,2)||12,01 (+0,1)|
|Line +12 (VGA1), B||12,06 (+0,5)||12,04 (+0,3)||11,99 (–0,1)||11,99 (–0,1)||11,98 (–0,2)||11,94 (–0,5)|
|Line +12 (VGA2), B||12,06* (+0,5)||12,07* (+0,6)||11,99 (–0,1)||11,98 (–0,2)||11,98 (–0,2)||11,95 (–0,4)|
|Fan rotation speed, rpm||537||568||1028||1260||1516||1550|
|Thermosensor No. 1||27,6||26,7||26,4||26,2||27,2||26,7|
|Thermosensor No. 3||31,8||33,2||33,3||32,4||33,8||36,4|
|Thermosensor No. 4||37,1||41,5||43,6||43,3||46,6||52|
|Thermosensor No. 5||36,1||41,8||49,3||52||61,4||72|
|Thermosensor No. 6||35,5||38,8||42||44,3||50,4||57,2|
*- without load.
Excellent performance, everything is within the normal range and does not even go beyond the 2% threshold, with the exception of the 3.3-volt channel, where it reached 2.1% under a gaming load with a pair of video cards. Good voltage stability, even when the power supply is overloaded by almost 10%. The transformer warmed up to 72 degrees, but given the power delivered, this is not so much, especially since it has similar temperatures in 500–700 W models.
The reviewed unit Vinga VPS-1200Pl turned out to be an excellent product both in terms of performance and appearance, which is a rare combination in our time. Good output parameters are due to the SAMA platform used, which, nevertheless, is not very popular among power supply manufacturers. The design will appeal to connoisseurs of original solutions, but the length of the device can become a stumbling block when installed in some cases, even Vinga. Those who like to take powerful solutions for low-end assemblies in the hope of complete silence, unfortunately, will pass by, since the cooling system fan rotates even at minimal load. But if you want to save money when assembling a productive PC with an eye on energy efficiency, then Vinga VPS-1200Pl may be the only choice on the domestic market, since the price for such a powerful power supply unit with a “platinum” certificate is at the level of 110-120 dollars, while solutions eminent manufacturers are twice as expensive.