Question Corsair H150i elite LCD 360MM - pump works for 1 second on startup then stops

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Jan 8, 2023
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hey yall

I recently got a new AIO for my PC because my previous one from EKWB broke and this one is also having some issues.

I can feel the pump vibrating for the first second the PC starts up then it just stops and the temp rises to 85-90.

I have it plugged in CPU_fan header, and I made sure none of the cables are loose or anything.

here are my specs if anyone needs

Asus crosshair viii hero
AMD 5800X
Corsair 32gb ram (4x8)
RTX 3080
Corsair HX850
Samsung 1tb ssd
6 corsair QL120 fans (other than the ones that came with the AIO)
Lian Li 011D case

I would really appreciate it if anyone can help, I’ve been trying to fix this issue all day yesterday.
 

Alan Alan

Commendable
Aug 9, 2022
227
11
1,595
I had that problem years ago, dummy me plugged the motor into a fan controller on the mobo. I don't think you plug the motor to anything other than direct power. I think they are designed to run full speed 100% of the time. At least my Corsair is like that. It just has a small plug for the pump motor and the other side plugs directly into the power supply. I hope your mobo is shutting down because that kind of heat can destroy your new pump. Like melt the plastic housing of something. If you spring a leak then it's probably warped. Also my system doesn't have a pump motor speed sensor. Fine with me because the mobo shuts down if the processor overheats.
 

SyCoREAPER

Honorable
Jan 11, 2018
957
361
13,220
I had that problem years ago, dummy me plugged the motor into a fan controller on the mobo. I don't think you plug the motor to anything other than direct power. I think they are designed to run full speed 100% of the time. At least my Corsair is like that. It just has a small plug for the pump motor and the other side plugs directly into the power supply. I hope your mobo is shutting down because that kind of heat can destroy your new pump. Like melt the plastic housing of something. If you spring a leak then it's probably warped. Also my system doesn't have a pump motor speed sensor. Fine with me because the mobo shuts down if the processor overheats.

They over complicated it forcing that useless hub. I also don't know why they want the pump connected to CPU rather than pump.

Either way the only other advice I have for the OP is to search the BIOS. My MB has a setting for what type of cooler is being used, air or water.

Otherwise it's dead or not connected right in which case I explained best I can.
 

Alan Alan

Commendable
Aug 9, 2022
227
11
1,595
They over complicated it forcing that useless hub. I also don't know why they want the pump connected to CPU rather than pump.

Either way the only other advice I have for the OP is to search the BIOS. My MB has a setting for what type of cooler is being used, air or water.

Otherwise it's dead or not connected right in which case I explained best I can.
I don't think you understood what I said. The pump needs to be connected directly to the power supply and start immediately, if it doesn't the processor overheats and you can't even get into the bios.
 

SyCoREAPER

Honorable
Jan 11, 2018
957
361
13,220
I don't think you understood what I said. The pump needs to be connected directly to the power supply and start immediately, if it doesn't the processor overheats and you can't even get into the bios.

I misread that the OP has the LCD version which is plagued with even more problems. I have the LED. Wiring appears to be different despite that the LCD can be added to mine, odd.

My previous advice is null
 
Last edited:

Alan Alan

Commendable
Aug 9, 2022
227
11
1,595
I misread that the OP has the LCD version which is plagued with even more problems. I have the LED. Wiring appears to be different despite that the LCD can be added to mine, odd.

My previous advice is null
Yeah, I can't control the fan speed with ICU , mine runs full speed all the time. Pretty foolproof I guess. Super quiet pump and fans, with 3 fans and the full sized radiator I figured it would not make much noise. Sorry, forget the model. Just an older Corsair. about 5 years. Not that it matters but you wrote something that makes no sense to me. >>I also don't know why they want the pump connected to CPU rather than pump. I'm sure you didn't mean connecting a pump to itself. I like to write things and they end up funny too. lol
 

Karadjgne

Titan
Ambassador
Old as it is, it may be that it needs Corsair Link to run the fans. Could also be because cpu_fan header is on Auto, which defaults to pwm, not DC.
They over complicated it forcing that useless hub. I also don't know why they want the pump connected to CPU rather than pump.
Cpu has an integrated security circuit at the root level. If it detects less than 200rpm at the moment the button is pushed, it assumes there is insufficient cooling to protect the cpu as in no fan/heatsink at all, and will shutdown immediately or refuse to boot.

The Commander or any other such, is not at the root level, it's driven by drivers, any one of which can fail to load for a myriad of reasons, so is technically unreliable and comes about during boot, not before.

So the pump should have clean, uninterrupted power, directly from the psu, the tach lead should connect to the cpu_fan header and control for the pump speeds, leds, lcds etc comes from the USB cable. That can be through the Commander or to any port on the mobo because the pump defaults to a 100% state until software settings decide otherwise.