Question Liquid cooling pump question

[connorfarkas]

hi, i have a cooler master ml120l and i just want to confirm before my cpu gets its life cut short due to heat. So the instructions werent very clear on what to plug into what so i just auto assumed the pump went into pump fan 1 and the fan for the rad went into cpu fan 1 (MSI z370 gaming with a i7 8700k), after i sat for a bit the room got pretty warm (smaller room) this is a bit after i built it as the original spot for it is in my basement where its cold all year round so i had not noticed till today that it pumps out some heat. Now im positive i have enough thermal paste and this confuses me. Idle is 50c not the best i know. And i stressed the cpu it never went above 82, infact it got a bit cooler after a little bit of time at 76-78c (10 minute run roughly) so i did reading and i couldnt find an answer, what pin goes where the 2 headers are cpufan_1 and pumpfan_1 both 4 pin and my pump is a 3 pin. I also read pump needs to be 100% pinned always. Well i dont know if it is as msi "smart fan controller" in bios has it set to be at 100% at like 75-80c so if i have it backwards would it help or how do i set it in the bios to pin the pump at 100 so i can keep my temp down. Thanks in advance

 

[Furzumz]

Pump connector goes to the pump header
The fan goes into the CPU fan header

If the header is 4 pin but the connector is 3 pin it'll still work just fine, 1 pin will just remain unused.

Was that stress test using some sort of software or were you just playing games? If it was stress test software then 82c sounds safe considering Intel lists the tjunction for that processor at 100c

The heat being pretty noticeable when dissipated is just how 120mm AIO's are I'd assume. My 120mm AIO was the same way where the heat coming off the radiator was super noticeable.

I upgraded to a large tower cooler that dissipates even more heat than my AIO could yet I don't even notice the heat with the new cooler. I'd assume its because a 120mm AIO dissipates the heat in a smaller area so its more concentrated making it more noticeable, while a tower cooler dissipates the heat over a much wider area making the heat less concentrated and therefore harder to notice.

 

[connorfarkas]

Pump connector goes to the pump header
The fan goes into the CPU fan header

If the header is 4 pin but the connector is 3 pin it'll still work just fine, 1 pin will just remain unused.

Was that stress test using some sort of software or were you just playing games? If it was stress test software then 82c sounds safe considering Intel lists the tjunction for that processor at 100c

The heat being pretty noticeable when dissipated is just how 120mm AIO's are I'd assume. My 120mm AIO was the same way where the heat coming off the radiator was super noticeable.

I upgraded to a large tower cooler that dissipates even more heat than my AIO could yet I don't even notice the heat with the new cooler. I'd assume its because a 120mm AIO dissipates the heat in a smaller area so its more concentrated making it more noticeable, while a tower cooler dissipates the heat over a much wider area making the heat less concentrated and therefore harder to notice.

Thank you, sorry for the late reply been busy. But it seems like the only time i can notice it is in a small room, i can get back to you on saturday at 7pm est and do the test as the pc will be back in its rightful spot in my cold basement. Ill run the test again and see if the temps are cooler cause i think half the problem is at my mothers (small room) the ac unit cant keep up to the pc heat and tv heat so the overall temps are probably higher as the room temp is hotter and when you open the door (animals so needs to be closed) a gust of cold air enters. But thanks again for clearing that up and maybe that pump only runs at 2200rpm max. (I compared it to a corsair 120mm rad which runs at 4k rpm so thats my bad lol no clue on the model as it was a prebuilt)

 

[Furzumz]

Thank you, sorry for the late reply been busy. But it seems like the only time i can notice it is in a small room, i can get back to you on saturday at 7pm est and do the test as the pc will be back in its rightful spot in my cold basement. Ill run the test again and see if the temps are cooler cause i think half the problem is at my mothers (small room) the ac unit cant keep up to the pc heat and tv heat so the overall temps are probably higher as the room temp is hotter and when you open the door (animals so needs to be closed) a gust of cold air enters. But thanks again for clearing that up and maybe that pump only runs at 2200rpm max. (I compared it to a corsair 120mm rad which runs at 4k rpm so thats my bad lol no clue on the model as it was a prebuilt)

Yeah the temperature in your room will effect the temperature of your computer for sure.

As far as the pump speed thing goes I'm not sure about that stuff personally, I've only used one AIO before for a couple years, the rest have been air coolers. Hopefully someone else here might be able to answer that

But its possible that pump doesn't have as high of a pumping speed as the other AIO you had. Or maybe it doesn't kick up to full speed at all times, similar to how a cpu fan usually isn't on full blast at all times

 

[connorfarkas]

Yeah the temperature in your room will effect the temperature of your computer for sure.

As far as the pump speed thing goes I'm not sure about that stuff personally, I've only used one AIO before for a couple years, the rest have been air coolers. Hopefully someone else here might be able to answer that

But its possible that pump doesn't have as high of a pumping speed as the other AIO you had. Or maybe it doesn't kick up to full speed at all times, similar to how a cpu fan usually isn't on full blast at all times

i mean looking at it now the cpu fan for the rad is super quiet and since msi's smart fan controllers are on its not spinning fast and ive never heard it wind up at all in the time ive built this (tested it at max speed to see how it sounded so i knew if something was too hot)