Chieftec VEGA M 850W ATX v3.1 PSU Review

The Chieftec VEGA M 850W is an ATX v3.1 compliant power supply with enough power to support a strong system, destined either for gaming or for creative purposes. Read the review to learn more about this product!

The Chieftec VEGA M 850W is (or will be) included in my best ATX v3.x & PCIe 5.x PSU picks article.

The CHIEFTEC Vega M series consists of members that adhere to the Intel ATX 12V 3.1 standard, with support for PCIe Gen5 and Gold efficiency. Their capacities range from 750W to 1000W, and in today’s review, I will examine the middle member of the line, which features a maximum power of 850W. All Vega M units utilize a contemporary platform featuring an LLC Half-Bridge design with DC-to-DC technology for generating the minor rails. Most PSUs nowadays costing over 50-60 dollars use a similar design. Additionally, the Vega M units have a fully modular cable design for easier installation. Cooling duties are handled by a 135mm fluid dynamic bearing (FDB).

All looks well on paper, but the testing data will show the capabilities of the Vega M 850W, and hopefully, it won’t disappoint me. The only thing I disapprove of so far in this PSU is that it doesn’t have any Cybenetics ratings, which are significantly stricter and provide a wealth of data, leaving nothing out.


Check out our top ATX v3.1 PSU guide before purchasing your next PSU.

ATX v3.1 850W PSU Reviews:

Technical Specifications:
  • Manufacturer (OEM): High Power
  • Max Power: 850W
  • Cybenetics Efficiency: [115V] Cybenetics Gold (88.820%), [230V] Cybenetics Gold (90.596%)
  • Noise: [115V] Cybenetics A (24.96 dB[A]), [230V] Cybenetics A- (25.44 dB[A])
  • Compliance: ATX v3.1, EPS 2.92
  • Operating Temperature (Continuous Full Load): 0 – 50 °C
  • Alternative Low Power Mode support: ✓
  • Power 12V combined: 850W
  • Number of 12V rails: 1
  • Power 5V + 3.3v: 100W
  • Power 5VSB: 15W
  • Cooling: 135mm Fluid Dynamic Bearing Fan (Globe Fan RL4Z S1352512H)
  • Semi-Passive Operation: ✗
  • Modular Design: Yes (Fully)
  • High Power Connectors: 2x EPS (1x cable), 4x PCIe 6+2 pin (2x cables)
  • Peripheral Connectors: 6x SATA (2x cables), 3x 4-pin Molex (1x cable)
  • ATX Cable Length: 600mm
  • EPS Cable Length: 650+150mm
  • 6+2 pin PCIe Cable Length: 610mm
  • Distance between SATA/4-pin Molex: 155mm
  • In-cable capacitors: No
  • Dimensions (W x H x D): 150 mm x 85 mm x 150mm
  • Weight: 1.42 kg (3.13 lb)
  • Warranty: 5 Years
  • Street Price (excluding VAT): 75€

Power Specifications

Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 20 20 70.8 3 0.3
Watts 100 850 15 3.6
Total Max. Power (W) 850
Pages ( 1 of 11 ): 1 234567891011Next »

Related Posts

9 thoughts on “Chieftec VEGA M 850W ATX v3.1 PSU Review

  1. Hello which PSU would you recommend if you had to pick from : Chieftec VEGA M PPG-750-C, Corsair RMe Series RM750e , Cooler Master MWE Gold V2 ATX 3.1 750W. They are priced the same and I am looking for a PSU to pair with my 5070 TI…

    1. I would get the one with the better support in the region, because performance differences are not that dramatic among these. Check for their noise output also (average noise) output.

  2. I’m curious how worried should I be for the inrush current this model has. It is quite competitively priced where I live, and I’m inclined to get it if it is not a big deal in terms of long-term reliability or safety on the secondary side.

      1. Thank you, Aris!
        As I see, the inrush is similar on Cybenetics as well. There is also an option to have the Cougar GEX Pro (650W which is not rated at Cyben) for similar price as well. Although Chieftec’s Vega M seems more reviewed than the Cougar. Which one would you recommend?
        PS – It is amazing to get guidance from professionals like you!

        1. Just retested the Chieftec PSU for inrush current, as expected values are way lower. I cannot say about the GEX Pro 650 since I haven’t tested it or at least I don’t remember doing so, my team 🙂

          1. Thank you for your guidance and updated information! I do not have any second thoughts about the Chieftec then! 🙂

Leave a Reply

Your email address will not be published. Required fields are marked *

Please consider turning off your adblocker to support our work! We work night and day to offer quality content, and ads help us continue our work! Thank you! The Hardware Busters Team