Corsair CX650M PSU Review

Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.

Protection Features, Evaluated

Check out our PSUs 101 article to learn more about PSU protection features.  

Our protection features evaluation methodology is described in detail here.

Swipe to scroll horizontally
Protection Features
OCP12V: - 5V: 32.5 A (130%) 3.3V: 32 A (128%) 5VSB: 5.8 A (193.3%), 78.48 mV Ripple
OPP762.51 W (117.3%)
OTPYes (125°C @ Secondary Side)
SCP12V: Yes 5V: Yes 3.3V: Yes 5VSB: Yes -12V: Yes
PWR_OKProper operation
NLOYes
SIPSurge: MOV Inrush: NTC Thermistor & Diode

Over-current protection on the minor rails seems to be properly configured, while at 5VSB it should be set at a lower level to prevent ripple from getting out of control. The over-power protection's triggering point is set at a reasonable level, while OTP is configured quite high. Finally, there is SCP on all rails, the power-good signal operates properly, and besides surge protection there is also protection against large inrush currents. It would be ideal if there was a bypass relay as well, but we're probably asking for too much from a Bronze-rated PSU.

Contributing Editor

Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.

  • Dark Lord of Tech
    Thanks for the review on this new CXM platform.
    Reply
  • JQB45
    Looks to be better then the old CX line up.
    Reply
  • Onus
    Good to see that Corsair didn't produce a Turkey with this one.
    Reply
  • turkey3_scratch
    Onus why would Corsair produce me?

    Anyway I think the price/performance page shows all. This thing rocks!

    Also Jonnyguru claims it is a rifle bearing fan that has the same model # as the sleeve variant.
    Reply
  • benedict78
    Does the CX650 perform the same as the CX650M? I'm not interested in modularity anyway.
    Reply
  • turkey3_scratch
    The CX650 is not out yet.
    Reply
  • Aris_Mp
    I have several CM and CX-M units, which I plan to fully evaluate. So far I figured that there are differences (something natural of course) in their performance.
    Reply
  • Dark Lord of Tech
    Could you put the newer CXM 750W OR 850W on deck soon , as they are widely use for DUAL CARD configurations.
    Reply
  • turkey3_scratch
    The 750W and 850W CXM units are basically unchanged except for a bridge rectifier upgrade. Everything else is the same. Only the CX450-650M got the major revisions.
    Reply
  • Dark Lord of Tech
    Yeah I know that , but want to see one reviewed , to compare top older generations.
    Reply