PC turns off after 2 3 seconds with water cooler

100seungie

Prominent
Aug 5, 2017
2
0
510
Just built a pc today with all new parts. Installed a AIO water cooler and first it was turning on and off for few times then it stayed on but I noticed water pump was not working. First thought that water pump was a defect but when I tried few other ways I found that when I pull CPU cable out it works fine. Which means pump works and pc doesn't turn off but of course computer won't boot. I tried few more times with cpu cable in and computer boots up and stays on now without turning off but pump doesn't work. What is wrong? Again all parts are new and my PSU is 750 gold class so it should provide enough power even though I have 1080 VGA. Anyone knows what's going on here?
 

100seungie

Prominent
Aug 5, 2017
2
0
510


Mobo is gigabyte ab350 gaming 3 and pump is connected on cpu fan by 4 pin. Fans are connected thru fan hub and it is connected on system fan2.

My com spec: Ryzen 7 1700x
Gskill trident rgb 16g
Gigabyte ab350 gaming3
Samsung 960 evo 250gb
Toshiba 3tb
Evga g3 750 gold class
Gygabyte gtx 1080
Aigo fans×4
Deepcool captain 240x water cooler with radiator and 2 fans
 

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