Powering the pump (AIO)

8t10 · 5 Dec 2014 at 10:50

So I have a H110 and 4770k. Stock clock speed and idle is ~30c. Prime95 on Small FFTs it rises to ~80c. This seemed rather high so I'm having a look around and my pump is plugged into the CPU OPT. It only occurred to me then that it might have been plugged into the wrong thing.

(Corsair documentation says to plug it into "a spare fan header".)

Is a pump like this meant to be running at full power (off a molex or a sys fan header) or is it ok how it is?

Thanks.

Minstadave · 5 Dec 2014 at 10:53

You can always turn off fan management in the bios so it runs the CPU fan header at 12v all the time.

I would see if temps are better on a constant voltage.

8t10 · 5 Dec 2014 at 11:19

Minstadave said:
You can always turn off fan management in the bios so it runs the CPU fan header at 12v all the time.

I would see if temps are better on a constant voltage.

I've got that going on at the minute, with a PWM splitter for the two radiator fans off the OPT (correction: pump is in the CPU header) so it's rather loud at the moment.

If I grab a 12v molex splitter, attach the pump onto that and then keep the fans on the OPT that should be best of both worlds?

McGraw · 5 Dec 2014 at 11:29

I have a H60 so they are probably different but I was under the impression that the fan/s run off the cpu header so they can speed up or slow down as required and the pump should be run at full speed off a sys fan header set to full speed.

I think I have traced my temp issues to running my H60 with the pump not on full speed.

Your idle temps seem fine to me and this is where my problems showed up.

What vcore do you get to under stress testing?

8t10 · 5 Dec 2014 at 12:38

McGraw said:
I have a H60 so they are probably different but I was under the impression that the fan/s run off the cpu header so they can speed up or slow down as required and the pump should be run at full speed off a sys fan header set to full speed.

I think I have traced my temp issues to running my H60 with the pump not on full speed.

Your idle temps seem fine to me and this is where my problems showed up.

What vcore do you get to under stress testing?

1.196v

The temps I'm not concerned about, but reducing them is always on everyone's mind.

Flying_Hellfish · 5 Dec 2014 at 14:01

McGraw said:
I have a H60 so they are probably different but I was under the impression that the fan/s run off the cpu header so they can speed up or slow down as required and the pump should be run at full speed off a sys fan header set to full speed.

This is what I used to do when I had one as well. Just make sure fan settings on mobo are configured correctly (sys fan set to HIGH or whatever the option is, with no management) and it should be fine.

Alternatively, could you run a fan > molex connection on the pump part and plug direct into PSU?