The Corsair CX/CX-M Cheat Sheet! (AKA: There is no CX 2017 Edition)

[Guest]

(Picture of units included in this article:  http://jongerow.com/CX/index.html)

 

Here we go!!!!


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 30°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 30°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. All lower wattage CX-M's already used Infineon for synchronous rectification.  After this was released, CP-9020061 was also upgraded to Infineon MOSFETs (everything made after the second week of February, 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.  NOTE:  The first four digits of your serial number is the manufacture date.  First two digits are year (i.e. "19" would be 2019) and next two digits are week of the year (i.e. "12" would be 12th week.  So 12th week of 2019 would mean it was built on the week of March 18th).

 

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.

[porina]

6 minutes ago, jonnyGURU said:

80 PLUS Silver (but advertised as Bronze).

I find that curious. In recent years I've tended to get CX450M/CX550M for budget builds as they're well priced and widely available. Maybe I should get the CX550 instead going forward since it does look slightly cheaper than the 550M in a quick look on Amazon UK. When I run systems, they are usually under sustained load so any efficiency improvement could help a little there.

[Guest]

 

6 hours ago, porina said:

I find that curious. In recent years I've tended to get CX450M/CX550M for budget builds as they're well priced and widely available. Maybe I should get the CX550 instead going forward since it does look slightly cheaper than the 550M in a quick look on Amazon UK. When I run systems, they are usually under sustained load so any efficiency improvement could help a little there.

The CX is over all a better product than the CX-M.  The only thing the CX-M has going for it is modularity.  The CX is not only an updated platform (LLC resonant vs. DF), but is also more efficient (primarily because of the updated platform).

[porina]

14 minutes ago, jonnyGURU said:

The CX is over all a better product than the CX-M.  The only thing the CX-M has going for it is modularity.  The CX is not only an updated platform (LLC resonant vs. DF), but is also more efficient (primarily because of the updated platform).

Sold  I'm not familiar with PSU topology but I wont miss the modularity. While it sounds like a good idea all it means is I will misplace the unused cables so I can never find them when I need them later.

[Firewrath9]

is there any noticeable diff between great wall and CWT?

also why don't they advertise as 80+ silver?

[Guest]

29 minutes ago, Firewrath9 said:

also why don't they advertise as 80+ silver?

Because efficiency can vary from one unit to the next, Corsair has a standing rule where efficiency of a product needs to have margin ABOVE 80 PLUS just in case some production units fall short.

 

So efficiency ends up actually being Silver in most units, including those sent to 80 PLUS, but there may be one or two that are just below Silver, therefore they're actually Bronze.

 

 

29 minutes ago, Firewrath9 said:

is there any noticeable diff between great wall and CWT?

"Noticeable"?  No.  Both CWT and Great Wall had to follow the same product definition documents from Corsair.

 

Though Cybenetics found some very slight differences:

 

https://cybenetics.com/a/VUm/

 

The CWT was quieter, but slightly less efficient.

 

https://cybenetics.com/a/i1k/

 

The GW was not as quiet, but more efficient.

 

 

[Stefan Payne]

1 hour ago, jonnyGURU said:

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.

And no OCP, I presume?

[Guest]

2 minutes ago, Stefan Payne said:

And no OCP, I presume?

Probably not.  That product totally pre-dates me. 

 

I don't think Corsair had engineers, never mind PRD's, back then.

[Spotty]

Quote

(AKA: There is no CX 2017 Edition)

@jonnyGURU What are your thoughts on referring to the most recent RMx series as "RMx (2018)"? Just curious if you have another preference for distinguishing that model from the older RMx series.

 

RMx (2018) is how it's described in the product title on the Corsair website.

[Oalei]

Well I guess you had enough with the missunderstandings.

[Guest]

5 hours ago, Spotty said:

@jonnyGURU What are your thoughts on referring to the most recent RMx series as "RMx (2018)"? Just curious if you have another preference for distinguishing that model from the older RMx series.

 

RMx (2018) is how it's described in the product title on the Corsair website.

That's fine.

 

I don't mind the "20XX" designation.  But when people assume there is a revision when there isn't and it impacts their buying decisions sort of bugs me.