H100i elite mod help

[Tsxfire]

I have a very odd thing I want to do and I need some help, I have an h100i elite that is dead, the brushless motor in it died and no longer works and can't even get an ohm resistance from it. I was wanting to use the block for the LCD that Corsair has for it but use a d5 pump and expand the loop, in order to bypass the pump error that it reports from the dead motor I was thinking of putting a resistor in the path the motor normally would be instead - only rough Idea I had was from a small 12v fan off a 3d printer I had being 82ohm of resistance when I had the meter set to 200k, would this be roughly the ideal size to put in you guys think? If anyones able to measure the ohm of one that isn't dead or just a ballpark that would be great. Just don't need annoying errors being reported once it's bypassed/replaced.

[pio]

Interesting idea and project......

One thing you can try to do is pull the part number off the original pump.  From what I can tell its probably a CoolIt pump perhaps?  And maybe we can scrounge the internet up for some specifications on that particular pump.  Surely somebody would've done a resistance check on it before.

I can measure my Coolermaster 240mm unit, but its possible mine might be an Asetek.  I'm not sure as I've never disassembled mine nor researched it.

 

But what you'd want to do is find out what pump is in it for sure, and find the measurements in the datasheets online, or if not available, have somebody else measure (like you already asked).   

[UltraMega]

Interesting idea for sure but there are so many different kinds of RGB lights you can get now, I wonder if there would be an easier way to get the same results. 

[ENTERPRISE]

1 hour ago, Tsxfire said:

I have a very odd thing I want to do and I need some help, I have an h100i elite that is dead, the brushless motor in it died and no longer works and can't even get an ohm resistance from it. I was wanting to use the block for the LCD that Corsair has for it but use a d5 pump and expand the loop, in order to bypass the pump error that it reports from the dead motor I was thinking of putting a resistor in the path the motor normally would be instead - only rough Idea I had was from a small 12v fan off a 3d printer I had being 82ohm of resistance when I had the meter set to 200k, would this be roughly the ideal size to put in you guys think? If anyones able to measure the ohm of one that isn't dead or just a ballpark that would be great. Just don't need annoying errors being reported once it's bypassed/replaced.

Firstly, welcome to ExtremeHW, good to have you here

1 hour ago, pioneerisloud said:

Interesting idea and project......

One thing you can try to do is pull the part number off the original pump.  From what I can tell its probably a CoolIt pump perhaps?  And maybe we can scrounge the internet up for some specifications on that particular pump.  Surely somebody would've done a resistance check on it before.

I can measure my Coolermaster 240mm unit, but its possible mine might be an Asetek.  I'm not sure as I've never disassembled mine nor researched it.

 

But what you'd want to do is find out what pump is in it for sure, and find the measurements in the datasheets online, or if not available, have somebody else measure (like you already asked).   

This would be the best way to go about it. 

 

I know @bluedevilhas a few AIO units, but not sure if he has one  that can be used as a reference.

[Avacado]

Welcome to the forums! Very cool idea. We commonly do resistance FB mods to older GPUs for HWbot in that fashion. I dont have that model, but I can try to take a reading from my CM 280. Not actually sure what pump is in it TBH, I'd have to look.

[pio]

This is a slightly outdated list but......
https://www.gamersnexus.net/guides/2122-who-actually-makes-liquid-coolers-oems

Looks like Coolermaster might be an OEM for pumps all on their own, so testing the MasterLiquid AIO's might not end up providing any useful data.  Looks like they also use Swiftec.  Assuming the H100i Elite is like the others on the list, its likely a CoolIT pump, but Corsair does regular use Asetek pumps too.  Whichever pump is in there, that list should help in determining what OTHER AIO's we can search for to rip apart, or search for data on to find the resistance of the appropriate pump.

 

Hope that helped some.  I know I had no idea Coolermaster made their own pumps.  Would be nice if I could find a more modern and thorough list.

 

EDIT:
Yeah, its almost certainly a CoolIT pump in there seeing as Asetek sued Corsair and CoolIT in 2014.  I doubt Corsair would go back to a company that sued them.  From reading this article though, I'm wondering how similar the CoolIT pump really is to the Asetek units seeing as how they were sued for copyright infringement.
https://www.tweaktown.com/news/38866/coolit-can-continue-making-custom-aio-cpu-liquid-coolers-for-corsair/index.html

Edited August 17, 2022 by pioneerisloud

[Tsxfire]

2 hours ago, pioneerisloud said:

This is a slightly outdated list but......
https://www.gamersnexus.net/guides/2122-who-actually-makes-liquid-coolers-oems

Looks like Coolermaster might be an OEM for pumps all on their own, so testing the MasterLiquid AIO's might not end up providing any useful data.  Looks like they also use Swiftec.  Assuming the H100i Elite is like the others on the list, its likely a CoolIT pump, but Corsair does regular use Asetek pumps too.  Whichever pump is in there, that list should help in determining what OTHER AIO's we can search for to rip apart, or search for data on to find the resistance of the appropriate pump.

 

Hope that helped some.  I know I had no idea Coolermaster made their own pumps.  Would be nice if I could find a more modern and thorough list.

 

EDIT:
Yeah, its almost certainly a CoolIT pump in there seeing as Asetek sued Corsair and CoolIT in 2014.  I doubt Corsair would go back to a company that sued them.  From reading this article though, I'm wondering how similar the CoolIT pump really is to the Asetek units seeing as how they were sued for copyright infringement.
https://www.tweaktown.com/news/38866/coolit-can-continue-making-custom-aio-cpu-liquid-coolers-for-corsair/index.html

This helped massively! - posting information I found below on a Corsair forum, doesn't give me the ohm resistance but it at least gives me the regular draw that it would have. I'm glad there's a lot of people who have done resistance mods in the past I was sure I wasn't the first one haha. Despite all the RGB mods and such I just want that micro display for some monitoring I may be able to work out in the future. 

 

The only thing that makes me sad is how annoying it is to change the tube size to a more common one....oh well it'll all work out in the end.

 

The "ECO II" pump unit "CoolIt" has a 12 Vdc, nominal current draw of 0.1 Amp, drawing 1.2 watt. The maximum flow rate is 2 Liters/ minute. The max. head is 112 cm of H2Oand max. noise level of 23 dBa at 2100 RPM +/- 10%.

 

The pump unit for the "ECO II-120" varies with the flow rate of 0.94 Liters/ minute. The basic difference between the two is the halved flow rate for the ECO II. Normally this would indicate that with the pump prime mover staying the same the pump displacement has been halved. I can't be sure which unit applies to the Corsair units as obviously these numbers should apply as proprietary information for contracting parties involved. Sooooo...., some more info for the masses who care.

[Tsxfire]

Update, I tested soldering a small 12v fan where the pump was, cycled the fan twice then just reported general error haha, not sure if the board itself was dead to start with or not since I bought it non functional. Curious if using a resistor of the right ohmage will clear the error. No more pump error though! So not sure

[Tsxfire]

I was wrong. Still giving pump failure error so the fan does not have equal resistance to the pump

[pio]

1 hour ago, Tsxfire said:

Update, I tested soldering a small 12v fan where the pump was, cycled the fan twice then just reported general error haha, not sure if the board itself was dead to start with or not since I bought it non functional. Curious if using a resistor of the right ohmage will clear the error. No more pump error though! So not sure

 

6 minutes ago, Tsxfire said:

I was wrong. Still giving pump failure error so the fan does not have equal resistance to the pump

I'm wondering here, did the pump have the PWM sense wire connected?  I'm wondering if its not so much the resistance that its complaining about, but instead the fact that there's 0RPM being reported off the PWM wire?

I think you might have been onto something putting a fan in its place.  0.1a at 12v, that would be right around a case fan type of a load.

Edited August 17, 2022 by pioneerisloud

[Tsxfire]

2 hours ago, pioneerisloud said:

 

I'm wondering here, did the pump have the PWM sense wire connected?  I'm wondering if its not so much the resistance that its complaining about, but instead the fact that there's 0RPM being reported off the PWM wire?

I think you might have been onto something putting a fan in its place.  0.1a at 12v, that would be right around a case fan type of a load.

So where the pump connected there was only 2 very very tiny wires going to the brushless motor itself, it cycled the fan twice but then just stopped arbitrarily. Those two tiny leads are all it had, but this motor itself has a broken connection somewhere inside the spool preventing it from ohming to give a value of resistance.....that being said I'm not sure if my board is fried or not it's hard to tell. Not sure of a way to test exactly hahah