Asus Z170 dedicated pump header

[MEC-777]

Generally speaking since all the flows here are turbulent the heat transfer to the block is not likely to be significantly affected by increased pump speed. There is however a non-negligible increase in radiator efficiency (energy dissipation) for the simple and undeniable reason that increased flow rate means the delta T across the radiator is much smaller and the fluid is at a higher temperature at the exit (as anyone with rudimentary thermo knowledge can tell you, the higher the temperature difference between the source and sink the higher the efficiency).

You're forgetting to take into account fan speed which can have a drastic impact on heat dissipation/transfer across the rad.

Now it should be fairly obvious to you that engineering safety margins exist for these pumps. If NZXT says for example they will guarantee the pump for 5 years rated at continuous full power operation, then on average you should expect it to last much more than that. Indeed, good Astech based pumps these days are perfectly capable of running far beyond what most people will actually use them for and other sources of failure/disuse are much more likely (for example block/piping leakage esp after transportation). So really stop worrying about it

Exactly.

[Curufinwe_wins]

You're forgetting to take into account fan speed which can have a drastic impact on heat dissipation/transfer across the rad.

I made the assumption that for the purposes of comparison, fan speed was unchanged.

[BobbyG2]

I ordered an NZXT Kraken X61 and an Asus z170 board a few days ago. Think the best way to set the pump is connect it to the mobo, set it at 100% during stress test, than lower the pump speed until just above where it starts to make a difference in temps?

[MEC-777]

I ordered an NZXT Kraken X61 and an Asus z170 board a few days ago. Think the best way to set the pump is connect it to the mobo, set it at 100% during stress test, than lower the pump speed until just above where it starts to make a difference in temps?

 

There really is no right or wrong way to do it. Just different ways to do it. Personally I like to run the pump off molex to leave all the motherboard fan headers free for fans. But if you don't need all the fan headers, than it doesn't really matter. 

[NarimaanV]

On January 3, 2016 at 3:41 PM, BobbyG2 said:

I ordered an NZXT Kraken X61 and an Asus z170 board a few days ago. Think the best way to set the pump is connect it to the mobo, set it at 100% during stress test, than lower the pump speed until just above where it starts to make a difference in temps?

Were you able to successfully control the X61 with the W_PUMP header? I'm planning a build using an Asus ROG Maximus VIII Hero Alpha (pretty dang close to your mobo) and an X61 and have been curious if it could be controlled without the CAM software via the W_PUMP header.

 

Nevermind, realized that I misunderstood the purpose of the header. Still curious if it works normally with the header though.

Edited February 3, 2016 by NarimaanV
Realized I asked the wrong question.

[BobbyG2]

20 hours ago, NarimaanV said:

Were you able to successfully control the X61 with the W_PUMP header? I'm planning a build using an Asus ROG Maximus VIII Hero Alpha (pretty dang close to your mobo) and an X61 and have been curious if it could be controlled without the CAM software via the W_PUMP header.

 

Nevermind, realized that I misunderstood the purpose of the header. Still curious if it works normally with the header though.

Nah, the kraken doesn't have a 3 pin pump header. It's powered through Sata connector and controlled through USB and their software

[NarimaanV]

1 hour ago, BobbyG2 said:

Nah, the kraken doesn't have a 3 pin pump header. It's powered through Sata connector and controlled through USB and their software

Umm, where are you getting that from? Because from step 7 the manual as well as these two pics:

 

http://media.bestofmicro.com/S/3/466275/gallery/NZXT_Kraken-X61_cables_w_600.jpg

https://i.ytimg.com/vi/hk6Hy-WU6h4/maxresdefault.jpg

 

Those kind of contradict what you say  

[BobbyG2]

4 hours ago, NarimaanV said:

Umm, where are you getting that from? Because from step 7 the manual as well as these two pics:

 

http://media.bestofmicro.com/S/3/466275/gallery/NZXT_Kraken-X61_cables_w_600.jpg

https://i.ytimg.com/vi/hk6Hy-WU6h4/maxresdefault.jpg

 

Those kind of contradict what you say  

Oh I thought that was for the fans. The "instructions" that came with the X61 were crap. Just some pictures and no words instructing what any of the connectors do.

 

 I could try hooking it into the wpump header instead but I thought mobos refused to post without a cpu fan hooked up?

[NarimaanV]

10 hours ago, BobbyG2 said:

Oh I thought that was for the fans. The "instructions" that came with the X61 were crap. Just some pictures and no words instructing what any of the connectors do.

 

 I could try hooking it into the wpump header instead but I thought mobos refused to post without a cpu fan hooked up?

I have no idea to be honest. I'd imagine it should post if there's something connected to the W_PUMP header since that tells the mobo that the CPU has a rad, but I could be very wrong.