Question Masterwatt vs CXM vs Raider II

bononos

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Aug 21, 2011
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Haven't kept up with the news and my old psu went tits up(not sure), need a replacement quickly.
Which of these psus would be the best? Masterwatt 650 vs Corsair CX650M vs Raider II 650. The Masterwatt is not the MWE series (confusing), I think below 650W, the Masterwatt or MWE doesn't have DC-DC for both 3.3/5V.



Found this thread which said something about the new grey logo ones.
 
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UsandThem

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May 4, 2000
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Between those three choices, if I were buying a new unit right now (availability is really bad on most power supplies), I would go in this order:

  1. Corsair
  2. FSP
  3. Cooler Master
 

UsandThem

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Why the CM last?
Cooler Master isn't a brand I like as far as power supplies go. Plus, there's nothing really that Cooler Master model does better than the other two options, and who both have a longer/better overall track record when it comes to power supplies.
 

jonnyGURU

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The CX-M is better of the ones listed.... but the CX (non M) is even better if you don't mind having a non-modular PSU.

Here's a little "CX Cheat Sheet":

Discontinued CX (listed old to new):

Corsair CX400 (CMPSU-400CX): VERY old (2008!), based off Sesaonic S12II. Double Forward, no DC to DC (Group Regulated). Rated at 40°C. 80 PLUS White. Ball bearing fan. Three year warranty.

Corsair CX430 (CMPSU-430CX): Old (around 2011), based off CWT DSAII. Double Forward, no DC to DC (Group Regulated). Rated at 30°C. No 80 PLUS. Sleeve bearing fan. Two year warranty.

Corsair CX500 (CMPSU-500CX): Old, based off CWT DSAII. Double Forward, no DC to DC. Rated at 30°C. No 80 PLUS. Sleeve bearing fan. Two year warranty.

Corsair CX600 (CMPSU-600CX): Old, based off CWT DSAII. Double Forward, no DC to DC. Rated at 30°C. No 80 PLUS. Sleeve bearing fan. Two year warranty.

Corsair CX430V2 (CMPSU-430CXV2): Old (around 2012), based off CWT DSAII. Double Forward, no DC to DC (Group Regulated). Rated at 30°C. 80 PLUS White. Sleeve bearing fan. Three year warranty.

Corsair CX500V2 (CMPSU-500CXV2): Old (around 2012), based off CWT DSAII. Double Forward, no DC to DC. Rated at 30°C. 80 PLUS White. Sleeve bearing fan. Three year warranty.

Corsair CX600V2 (CMPSU-600CXV2): Old (around 2012), based off CWT DSAII. Double Forward, no DC to DC. Rated at 30°C. 80 PLUS White. Sleeve bearing fan. Three year warranty.

Corsair CX750 (CP-9020015): Old (around 2012), based off CWT PUQ-B. Double forward with DC to DC. Rated at 30°C. 80 PLUS Bronze. Sleeve bearing fan. Three year warranty.

Corsair CX430 (CP-9020046): Old (around 2013), based off CWT DSAIII. Beefed up +12V (32A vs. 28A), but still DF with no DC to DC. Rated at 30°C. 80 PLUS Bronze. Sleeve bearing fan. Three year warranty.

Corsair CX500 (CP-9020047): Old, based off CWT DSAIII. Beefed up +12V (38A vs. 34A), but still DF with no DC to DC. Rated at 30°C. 80 PLUS Bronze. Sleeve bearing fan. Three year warranty.

Corsair CX600 (CP-9020048): Old, based off CWT DSAIII. Beefed up +12V (46A vs. 40A), but still DF with no DC to DC. Rated at 30°C. 80 PLUS Bronze. Sleeve bearing fan. Three year warranty.

Current CX:

Corsair CX450 (CP-9020120): Current generation. No V1, V2 or 2017 editions. Some made by CWT, some made by Great Wall. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Bronze. Five year warranty.

Corsair CX550 (CP-9020121, RPS0064): Current generation. Made by Great Wall. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Silver (but advertised as Bronze). Five year warranty.

Corsair CX550 (CP-9020121, RPS0054): Current generation. Made by CWT. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Silver (but advertised as Bronze). Five year warranty.

Corsair CX650 (CP-9020122, RPS0065): Current generation. Made by Great Wall. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Silver (but advertised as Bronze). Five year warranty.

Corsair CX650 (CP-9020122, RPS0055): Current generation. Made by CWT. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Bronze. Five year warranty.

Corsair CX750 (CP-9020123, RPS0066): Current generation. Made by Great Wall. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Silver (but advertised as Bronze). Five year warranty.

Corsair CX750 (CP-9020123, RPS0056): Current generation. Made by CWT. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Bronze. Five year warranty.

Discontinued CX-M (listed old to new):

Corsair CX430M (CP-9020058): Modular version of CP-9020046.

Corsair CX500M (CP-9020059): Modular version of CP-9020047.

Corsair CX600M (CP-9020060): Modular version of CP-9020048.

Corsair CX750M (CP-9020061): From 2015. Same CP part number as new CX-750M, but has “CX” and “M” in GREEN. Based off CWT PUQ-B. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Three year warranty.

Corsair CX850M (CP-9020099): From 2015. Same CP part number as new CX-850M, but has “CX” and “M” in GREEN. Based off CWT PUQ-B. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Three year warranty.

Current CX-M:

Corsair CX750M (CP-9020061): Current version as of 2016. Same CP part number as previous CX-750M, but label is GRAY with “CX750M” in black. Based off CWT PUQ-B. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Five year warranty.

Corsair CX850M (CP-9020099): Current version as of 2016. Same CP part number as previous CX-850M, but label is GRAY with “CX850M” in black. Based off CWT PUQ-B. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Five year warranty.

Corsair CX450M (CP-9020101): Current version as of 2016. Made by CWT. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Five year warranty.

Corsair CX550M (CP-9020102): Current version as of 2016. Made by CWT. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Five year warranty.

Corsair CX650M (CP-9020103): Current version as of 2016. Made by CWT. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Five year warranty.

Corsair CX750M “2017 Edition” (CP-9020154): MOSFETs upgraded to Infineon. After this was released, CP-9020061 was also upgraded to Infineon MOSFETs, but the part number was kept the same so retailers didn’t have to change their SKU sheets, websites, etc. In some regions, both CP-9020154 and CP-9020061 co-exist and are identical inside and out.

Corsair CX850M “2017 Edition” (CP-9020157): MOSFETs upgraded to Infineon. After this was released, CP-9020099 was also upgraded to Infineon MOSFETs, but the part number was kept the same so retailers didn’t have to change their SKU sheets, websites, etc. In some regions, both CP-9020157 and CP-9020099 co-exist and are identical inside and out.

Where are you located? The U.S.? Availability is tricky in the U.S. right now.
 

bononos

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Aug 21, 2011
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The CX-M is better of the ones listed.... but the CX (non M) is even better if you don't mind having a non-modular PSU.
........
I'm not in the states atm. The MWE bronze v2 also has LLC, DC-DC - but it doesn't seem to be considered as good as the CXM... would that be right?


 
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jonnyGURU

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The MWE V2 is better than CX-M. Equal to CX more or less.

In that thread you have ONE GUY complaining about a dead MWE V2. Where is it implied by anyone else that it's not a good PSU?
 

bononos

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The MWE V2 is better than CX-M. Equal to CX more or less.

In that thread you have ONE GUY complaining about a dead MWE V2. Where is it implied by anyone else that it's not a good PSU?

Sorry, I got mixed up with another thread, and they might be talking about the 'white' version I'm not sure.
I think the Linus psu tier list also puts the MWE Bronze v2 <600W in category C which is below the Corsair CXM, but I checked the specs and the MWE bronze v2 500W/550W is also DC-DC+LLC like the 600W and higher models. So I don't know why they are in a tier lower.
 

jonnyGURU

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Sorry, I got mixed up with another thread, and they might be talking about the 'white' version I'm not sure.
I think the Linus psu tier list also puts the MWE Bronze v2 <600W in category C which is below the Corsair CXM, but I checked the specs and the MWE bronze v2 500W/550W is also DC-DC+LLC like the 600W and higher models. So I don't know why they are in a tier lower.

LOL! Not a single person in that Tom's thread knows what they're talking about.

The OP clearly said it was the "V2". As long as it's a "V2", it's an LLC with DC to DC made by Gospower. Despite this, they're still calling it an "ancient design" and even goes as far as saying "avoid Cooler Master altogether" (even though Cooler Master has known good series like the V Series and the MWE Gold).
 

bononos

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Aug 21, 2011
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LOL! Not a single person in that Tom's thread knows what they're talking about.

The OP clearly said it was the "V2". As long as it's a "V2", it's an LLC with DC to DC made by Gospower. Despite this, they're still calling it an "ancient design" and even goes as far as saying "avoid Cooler Master altogether" (even though Cooler Master has known good series like the V Series and the MWE Gold).
How concerned would you be with the filtering capxon capacitors on the MWE v2?