Scythe Kaze Server problem

[HSJ]

Hello!

I bought two Kaze Server fan controllers and i'm disappointed.

I want that Kaze Server controls all my fans automatically, but AUTO and SEMI modes is poorly made.

I give simply example:
AUTO mode:
I set minimum temperature @ 40°C. And when temp is above that pre-set temp fan start to spin, but when temp is 41-42°C fan is already spinning @ 12V. What's the point of that? AUTO mode is basically only 0V/12V switch?

SEMI mode:
I set minumum fan speed @ 500rpm and temp @ 40°C. When temps is above 40°C fan start spin faster. And when temp is 41-42°C fan is already spinning @ 12V.

And when i look diagram in manual it's lies badly. It's shows that fan is controlled little by little, but in in reality fan starts to spin full speed almost (in 10 seconds approx.) immediately temperature becomes above the pre-set.

When temp goes below pre-set value fan is controlled slow down logically, but when it goes above...i have already sayed what happens.

I assume that fan is controlled something like that (this is only fictional example):
- Minimum fans speed is 500rpm, minimum temp 40°C
- 30°C=500rpm -> 40°C=500rpm -> 50°C=700rpm -> 60°C=900rpm -> 70°C=1200rpm
- But actually control goes like that: 30°C=500rpm -> 40°C=500rpm -> 41-42°C=1200rpm (=full speed).

I try reset both controllers many times and i test each fan slot, always same thing.

So i can say that i waste ~90€. And what i get? Nothing that i think i get. Is this really Scythes vision by automatically fan control, when temps is below fan stops and when temps is above fan runs full speed? (or am i misunderstanded something)

But i love this controller (it looks way better than my "old" Zalman MFC1 Plus), i just have to control my fans manually. Hope that in next version i can set both, min rpm/min temp and max rpm/max temp. So if i want that my 1300rpm fan runs min 500rpm@40°C and max 1000rpm@60°C and between those temps Kaze Server controls fans independently/automatically.

Sorry for my bad english.

[sumo]

hi,

your misunderstood something. The temperatur your set is in the Kaze Server is the treshold temperatur or lets say the maximum temperatur, not the minimum temperatur. So if you set 40°C for maximum temperatur, the panel controls the fan step by step to get a temperatur below. But if the temperatur goas above the panel want to prevent this. Thats why it set the fan to full speed.

now i hope you can install your kaze server in the right way.

Cheers Chris

[HSJ]

Originally Posted by sumo

The temperatur your set is in the Kaze Server is the treshold temperatur or lets say the maximum temperatur, not the minimum temperatur.

Yes i understood that pre-set value is max temp and when temp is above it = fan spins faster (manual speaks pre-set temp is minimum temperature).

But now fan is spinning faster only when temp is above of pre-set. So fan spins only minimum (pre-set) speed and full speed. When temp goes below of pre-set fan slower down little by little.

I give again example.

pre-set rpm 500rpm (full speed 1200rpm), pre-set temp 40°C

20°C=500rpm -> 30°C=500rpm -> 40°C=500rpm -> 41°C=1200rpm -> 50°C=1200rpm -> 39°C=1000rpm -> 35°C=700rpm -> 30°C=500°C.

So Kaze Server make fan spin faster only when temp is above (pre-set).

Maybe i misunderstood whole operation philosophy, i assume that Kaze Server try to make sure that temp is never going to pre-set value and make fan spins faster/slower, but now fans are spinning always at same pre-set speed until temp is above.

[sumo]

im not in the office now to check this, but what i know normally the panel should spin up slow if it reaches treshold. But one question: if this happen on all channels or only on one? which fans you use?

[HSJ]

Originally Posted by sumo

im not in the office now to check this, but what i know normally the panel should spin up slow if it reaches treshold. But one question: if this happen on all channels or only on one? which fans you use?

I have tested all channels in both controlles.

And these fans i've used by testing (not installed case yet):
Scythe Kaze Maru 1200rpm
Scythe Gentele Typhoon 1450rpm
Scythe S-Flex 800, 1200 & 1900rpm
Scythe Kaze Jyu 1000 & 1500rpm
Nexus 1000rpm
Noctua NF-S12-1200
Noctua NF-S12B-1200
Noctua NF-P12-1300
And many others (my closet is like a small fan-store)

[sumo]

hi,

i checked now the behavior of the Server: If you set the treshold to 40° in Semi Mode: up to 40°c the Panel uses the min. rpm pre sets. If you reach 40°C there is a latancy of some seconds. in this time the panel check if this temp is stable/falls or go higher. after this it depends on how much the actual temp is above the treshold. The panel starts to spin up slowly. Excample: @ 41°C the panel gives ~ 70% and wait what happens. but not 100%. If the temperatur go up again the panel try to prevent this with full speed.

So its very imptortant to set the right temperatur for best controlling. So you maybe should check your maximum temp in MAN mode, than set the temps for AUTO/SEMI mode some degrees lower (1-2°C).

[HSJ]

Thank you for answer.

Now i have finally finished my case project and installed Kaze Servers. But i noticed new problem, not big but annoying.

One channel makes that: In SEMI-mode it will correctly speed up fan when temp is above of pre-set. But when temp goes below -> fan is still running full speed. It will run full speed until i push potentiometer (change operation mode).

Reseting controller won't help.

[sumo]

maybe you have some bad ghosts in your panel

thats only happen with this cahnnel?is that the same with all fans?

[HSJ]

Originally Posted by sumo

maybe you have some bad ghosts in your panel

thats only happen with this cahnnel?is that the same with all fans?

Yes, only one channel makes that (with all fans that i have tested).

But this is not big problem. Manual mode works very well.

[sumo]

mhm, ok, if you can work with that it is ok, but you can also try to get a new one.