Possible to move 12V to the 4pin header for EKWB DDC pump?

[LewisTechNoTips]

Now-a-day liquid cooling is getting more common and many motherboards is now providing a 4-pin fan/pump header which supports max. 2A or even more.

My motherboard H410M ITX/ac from Asrock also comes with this feature as well.

 

On the opposite side, the Laing DDC pump from EKWB consists of two connectors, one for 12V power and another for tacho & PWM control.

In order to have cleaner ITX PC build, I plan to move 12V to the 4pin connecter and my pump will work like a charm with just a 4pin connecter connected.

 

I got a datasheet for the pump from https://www.pumpvendor.com/media/laing/Laing_DDC_Series.pdf and it shows the pump will draw <1.8A in most of the condition.

However, I am wondering if the start-up current of the pump will jump higher than 2A and causes damages on motherboards.

 

Does anyone try this modification before? Thanks.

 

 

Note: It should not be a big deal for filling the liquid after this mod since there is "4pin fan header to molex" adaptor in the market for just $1-2.