MSI MAG A850GL PCIE5 850W PSU Review

The MSI MAG A850GL PCIE5 is an ATX v3.0 and PCIe 5.0 compatible power supply, as its model number implies, with enough power to support a capable gaming system.

The MSI MAG A850GL PCIE5 will be included in my article on the best ATX v3.0 & PCIe 5.0 PSU picks.

MSI tries hard to enter the tough PSU market, and the MAG A850GL PCIE5 is one of the new models offering ATX v3.0 compatibility, meaning that it can deliver its full power twice for short periods (0.1ms). The PSU has a Gold certification by 80 PLUS, and Cybenetics has not tested it. The fully modular cable design will make the PSU installation easier, and the same is the case for its compact dimensions, with only 140mm depth. MSI states on the official site that the provided 12VHPWR connector is set at 600W, which is way too high for an 850W unit. In fact, the high power connector is not set so high, but at 450W, which still, according to the ATX spec, is too high.

Because of the PSU’s compact dimensions, the largest compatible fan is restricted to 120mm in diameter. To keep noise output low and increase reliability simultaneously, MSI asked CWT, this unit’s OEM, to use a fluid dynamic bearing fan. This type of bearing has an increased lifetime under normal operating conditions, and it is less noisy than double ball bearings. Still, the latter are more tolerant to high operating temperatures.




Technical Specifications:
  • Manufacturer (OEM): CWT (GPX platform)
  • Max Power: 850W
  • Cybenetics Efficiency: Not rated
  • 80 Plus Efficiency: Gold
  • Noise [115V]: Not rated
  • Compliance: ATX v3.0, EPS 2.92
  • Operating Temperature (Continuous Full Load): 0 – 50°C
  • Alternative Low Power Mode support: Yes
  • Power 12V combined: 846W
  • Number of 12V rails: 1
  • Power 5V + 3.3v: 110W
  • Power 5VSB: 12.5W
  • Cooling: 120mm Fluid Dynamic Bearing Fan (DF1202512FDHN)
  • Semi-Passive Operation: ✗
  • Modular Design: Yes (Fully)
  • High Power Connectors: 2x EPS (2x cables), 4x PCIe 6+2 pin (2x cables), 1x PCIe 12+4 pin (450W)
  • Peripheral Connectors: 8x SATA (2x cables), 4x 4-pin Molex (1x cable)
  • ATX Cable Length: 600mm
  • EPS Cable Length: 750mm
  • 6+2 pin PCIe Cable Length: 600mm
  • 12+4 pin PCIe Cable Length: 600mm
  • Distance between SATA / 4-pin Molex: 150/145mm
  • In-cable capacitors: No
  • Dimensions (W x H x D): 150 mm x 85 mm x 140mm
  • Weight: 1.45 kg (3.2 lb)
  • Warranty: five years
  • Street price (excluding VAT): $110

Power Specifications

Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 20 20 70.5 2.5 0.3
Watts 110 846 12.5 3.6
Total Max. Power (W) 850
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4 thoughts on “MSI MAG A850GL PCIE5 850W PSU Review

  1. Hi, glad to find review of this one, thanks! If you were to choose between:
    a/ Thermaltake GF A3 850W for 115 EUR
    b/ MSI MAG A750GL PCIE5 for 98 EUR
    which one would you choose? The PC is i7-11700 + RX 6750 XT.

    1. Well, I know this is problably the type of questions you really don’t like to answer, but I’ll be most probably changing 6750 XT to 7700 XT in the shopping list, hence budget for the PSU gets lower… What would be the cheapest 700W+ PSUs I could get and would still be decent? I would prefer semi-modular or modular.

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