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The MSI MPG A1000G PCIE5 PSU Overview: Stability of Energy


Again in December, we had the chance to take a look at MSI’s MEG A1300P power supply, the corporate’s newest flagship PSU. Apart from providing loads of energy, the MEG Ai1300P was additionally MSI’s first ATX 3.0 energy provides – and one of many first ATX 3.0 PSUs available on the market general. And whereas it was admittedly not a groundbreaking design general, it was nonetheless a seminal work of types, sketching out a tough image of what we must always anticipate from different ATX 3.0 PSU designs, together with MSI’s personal.

The MEG Ai1300P was a real flagship PSU, for all the professionals and cons that include that. As spectacular because it was general, it was additionally aimed toward these prepared and capable of cope with the hefty price ticket. That is all properly and good for the small fraction of the market that may afford such a excessive caliber PSU, however for many PC builders, budgets are a really actual factor.

So, for at this time’s assessment, we’re looking at one thing a little bit extra downmarket from MSI: their MPG sequence. Like their flagship models, the brand new MPG PSUs are are also ATX 3.0 Prepared, however they arrive at extra cheap costs. Regardless of that shift, the unit we’re testing at this time, the MPG A1000G, continues to be probably the most highly effective PSUs MSI presents (in addition to being the highest MPG unit), able to delivering a kilowatt of PC energy.

MSI MPG A1000G PCIE5
Energy specs ( Rated @ 50 °C )
RAIL +3.3V +5V +12V +5Vsb -12V
MAX OUTPUT 22A 22A 83.5A 3A 0.3A
120W 1000W 15W 3.6W
TOTAL 1000W
AC INPUT 100 – 240 VAC, 50 – 60 Hz
MSRP $199

 

All of this marks a fairly fast ascent within the PSU house for MSI. The corporate launched its first PSU simply two years in the past with the MPG GF sequence, which have been primarily designed for gaming computer systems. Although MSI stepped right into a extremely aggressive and fairly saturated market, the discharge of the MPG sequence was yet one more success for the corporate, which MSI is hoping to additional construct upon with their new PCIE5-branded MPG models.

Packaging and Bundle

We acquired the MPG A1000G PCIE5 in a sturdy cardboard field with primary geometric art work printed on it. The entrance of the field is generally occupied by an image of the unit itself however considerable data is printed on the edges and rear of the field. Contained in the field, the unit is well-packed inside gentle packaging foam, making certain secure delivery.

The bundle of the MPG A1000G PCIE is extraordinarily frugal, with MSI supplying solely the required AC energy cable and 4 black mounting screws. There are zero equipment of any type equipped with this unit.

The MPG A1000G PCIE PSU is a completely modular design, permitting for the removing of each DC energy cable, together with the 24-pin ATX connector. Many of the cables have individually sleeved black wires and with black connectors. Solely the 16-pin PCIe 5.0 cable and one cable with two PCIe 8-pin connectors have black wires however are wrapped in a single sleeve.

MSI MPG A1000G PCIE5
Connector kind Hardwired Modular
ATX 24 Pin 1
EPS 4+4 Pin 2
EPS 8 Pin
PCI-E 5.0 1
PCI-E 8 Pin 6
SATA 12
Molex 4
Floppy 1

The MSI MPG A1000G PCIE 1000W PSU

Exterior Look

MSI is an organization that invests loads of sources within the exterior look of its merchandise and that features its PSUs. Very similar to the MEG sequence unit that we reviewed just a few weeks again, the MPG sequence is utilizing a proprietary chassis with embossed geometrical shapes. The design is similar to that of the MEG sequence however not fairly the identical – the golden accents at the moment are silver and a few geometrical decorations differ, with the MPG having solely rectangular patterns and no triangular shapes. The PSU is simply 150 mm lengthy, making it solely barely longer than what the ATX customary dictates, but it stays brief sufficient to make sure its compatibility with all however the smallest ATX-compliant circumstances.

 

The sticker with the unit’s electrical certifications and specs will be discovered on the in any other case plain prime facet of the PSU. Ornamental silver and black metallic plates will be discovered on the edges of the unit, which plates are magnetically connected and will be flipped to match the set up orientation of the PSU.

On the rear facet of the unit, proper subsequent to the AC energy connector and the essential on/off change, there’s a latching push button that controls the “zero-fan mode”. Because the title suggests, this mode permits for passive operation whereas the PSU’s load is low – a continuously utilized approach by many producers these days. Disabling it is going to pressure the fan to repeatedly spin so long as the PSU is powered on, however its pace will nonetheless be managed thermally.

The entrance facet of the unit is host to the quite a few connectors for the modular cables. A refined legend is printed instantly on the chassis.

Inside Design

The cooling fan of the MPG A1000G PCIE5 is a 135 mm mannequin by Hong Hua, a fairly well-liked producer whose followers we continuously see in high quality PC PSUs. The HA13525H12SF-Z is a fan that satisfies the cooling wants of the MPG A1000G PCIE5, although it’s a very high-speed fan for its measurement, with a most pace of 2300 RPM. It has a fluid dynamic bearing (FDB) engine that gives glorious longevity.

The OEM whose platform the MPG A1000G PCIE5 relies upon is Channel-Effectively Applied sciences, or CWT. CWT is a well-liked OEM for mid-to-high efficiency PSUs and so they are also the OEM behind MSI’s flagship MEG sequence. The MPG A1000G PCIE5 relies on a distinct platform than that used for the MEG sequence, which appears to be an upgraded model of one of many CWT’s hottest platforms. This platform has been the center of many models having an identical energy output over the previous few years. To be able to match the 135 mm fan within the 150 mm chassis, CWT cleverly shortened the vertical daughterboards to offer sufficient clearance.

 

Total, the MPG A1000G PCIE5 appears very crowded due to its very excessive energy density – the format is pretty easy. The filtering stage is typical, with 4 Y capacitors, two X capacitors, and two filtering inductors. The filtering stage results in two giant rectifying bridges, that are positioned on their very own sizable heatsink. The passive parts of the APFC circuitry are a humongous 400V/820μF APFC capacitor Nichicon and an equally giant encased filtering inductor. The lively APFC parts are on the longest heatsink of the unit.

 

Two transistors will be discovered on their very own heatsink, forming a typical half-bridge inversion topology on the first facet of the unit’s fundamental transformer. The output of the primary transformer is linked to eight energy MOSFETs that generate a single 12V rail, which is positioned on a vertical daughterboard. The three.3V and 5V strains are being generated by way of DC-to-DC conversion circuitry that may be discovered on the following vertical daughterboard. The secondary facet capacitors are all made by Nippon Chemi-Con and Nichicon, or their subsidiary firms, making this PSU an all-Japanese affair.

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