Corsair TX850M Semi Modular Power Supply Review

Corsair TX850M PSU

Corsair TX850M Semi Modular Power Supply Review

Corsair is a company that makes many components and one of them is power supplies. We are going to look at one of their TX series today, specifically the Corsair TX850M Semi Modular Power Supply.  Corsair does have a non-modular version of this PSU. The TX Series Modular PSUs are according to Corsair, “guaranteed to deliver their full rated specifications in environments up to 50° C. They have high-quality Japanese capacitors to provide performance and reliability for powering your PC components.”

Corsair TX850M

Corsair TX850M 1

Specs from Corsair:

  • Dimension: 5.9″(W) x 3.4″(H) X 6.3″(L)
  • Modular: Yes
  • Power: 850 Watts
  • 80 Plus Bronze Certified
  • ATX Connector: 1
  • EPS Connector: 2
  • PCI-E Connector: 4
  • 4 Pin Peripheral Connector:  4
  • SATA Connector: 8
  • Floppy Connector: 2
  • MTBF: 100,000 hours
  • Warranty Length: Five years

Corsair built the TX line of power supplies for gaming and performance. This power supply delivers up to 850 watts of power for your components. It is SLI and Crossfire certified with a max of four PCI-E connectors. They were designed to be 6 or 8 pin configurations. The first set of PCI-E power connects are permanently attached inside the PSU and the second set are modular. Along with the two PCI-E cables you get SATA power connectors that are modular.

This PSU is certified 80+ Bronze and guaranteed to deliver 82% or better efficiency at any load including at full load.

Corsair TX850M

Corsair TX850M Efficiency

Corsair TX850M has a 140mm fan inside to control temps. Corsair has programmed this PSU to at idle loads to run “zero rpm fan mode” for silent operation. The fan will adjust its RPM based on temps and is rated up to 50C to keep its efficiency

Corsair TX850M

Corsair TX850M Fan Noise

Besides this PSU being bronze certified, it has a single dedicated +12V rail for compatibility for graphics cards.

Final Thoughts:

Overall this power supply is very good. While its always nicer to have a higher 80+ rating on power supplies it also depends on cost and what you will use it for. sells the Corsair TX850M for 124.99 at the time of this review while the AX 850 Platinum PSU sells for 160.98 and the HX 850 Gold PSU is selling for 169.99. For the price and if you do not plan on doing anything over two cards you are fine. This PSU does not make noise nor have I had any issues with with heat when oriented with the fan pulling air from inside the case or from out outside the case. The cables have sleeves on them and are long enough to use without extensions in a Cooler Master HAF 932 case.  When I bought this PSU it was on sale for about $140 and the HX and AX series were closer to $200. At the time I had not planned on running two cards but shortly after I started running two XFX 6870’s in crossfire without any issues either.

I would give it a 10 but for $35 more you can get a better rated PSU that is fully modular.

Recommended Badge

Pictures from

Leave a Reply