PWM pump filling

D1craig · 18 Jan 2017 at 17:47

so how do i make my pump run fast enough to fill it without powering my motherboard?

https://www.overclockers.co.uk/ek-water-blocks-ek-xres-100-revo-d5-pwm-incl.-pump-wc-883-ek.html

last time i just powered the motherboard and luckily never got stung. dont want to try my luck a second time.

haszek · 18 Jan 2017 at 17:51

Should be OK when you connect molex only. Don't connect pwm header anywhere

D1craig · 18 Jan 2017 at 18:04

really? its that easy? im sure i saw things where people told you make bypass the pwm pins with something similar as to what you put in the motherboard power plug.

markoboyo11 · 18 Jan 2017 at 18:59

I just installed the 140 version 2 weeks ago and ek changed it a couple years back to run at 100% when pwm cable isnt attached to mobo.

OJ46 · 18 Jan 2017 at 19:15

This is what you need to do mate, otherwise it will run at 60% if PWM isn't plugged in. I found alternating the speeds between 60% & 100% whilst tipping the case was the easiest way to get the stubborn bubbles out.

markoboyo11 · 18 Jan 2017 at 19:56

OJ46 said:
This is what you need to do mate, otherwise it will run at 60% if PWM isn't plugged in. I found alternating the speeds between 60% & 100% whilst tipping the case was the easiest way to get the stubborn bubbles out.

No it doesnt anymore, read above.

OJ46 · 18 Jan 2017 at 20:02

I did, but I did the loop in my last build early 2016 and it ran at 60% unless using a wire as shown in the picture, so definitely not changed 'couple years back' unless OcUK sent me VERY old stock... And yes, that was using an EK-XRES D5 PWM.

markoboyo11 · 18 Jan 2017 at 20:20

OJ46 said:
I did, but I did the loop in my last build early 2016 and it ran at 60% unless using a wire as shown in the picture, so definitely not changed 'couple years back' unless OcUK sent me VERY old stock... And yes, that was using an EK-XRES D5 PWM.

Thats strange I seen an ek rep on another forum saying all stock from last couple of years will be 100% without pwm and mine was.
Either way its more than enough for filling loop so I wouldnt bother doing anything other than just disconnect it for filling.

OJ46 · 18 Jan 2017 at 21:31

Looks like mine was one of the last older style and they were changed to default to 100% at some point in early - mid 2016, so that's saved you the need to shove a paperclip in the pins

jorzeh · 18 Jan 2017 at 22:16

4 of the pumps I own D5 and DDC pumps 10w and 18W both run at 100% without the Pwm plugged in... Strange

D1craig · 19 Jan 2017 at 21:45

thanx for the tips guys. im thinking now maybe i couldn't do that because my case is so tight and i wouldn't be able to plug it in once loop was installed.

haszek · 20 Jan 2017 at 06:37

You can get extension and lead it to the back of the case.

D1craig · 20 Jan 2017 at 08:49

I was thinking about that. I'm making an change next week so I'll look for a few bits I need and do it all then.

Thanx for the tips guys.