Kolink Observatory - RGB Fan Speed

Lavinder · 5 Apr 2018 at 22:26

Hello I was just wondering if someone could help me - I currently have the RGB fans preinstalled in this case plugged in to my PSU via molex in to the adaptor - As far as I can tell I do not have RGB fan support on my motherboard but I was wondering if I am missing something in regards to changing the speed of the fans as they are at full speed at the moment as there is nothing to control them.

I'm just wondering if someone can help me to reduce the noise?

https://www.overclockers.co.uk/koli...se-black-tempered-glass-window-ca-037-kk.html

https://imgur.com/8iOLR7d

https://imgur.com/nnb2feB

https://imgur.com/jys1aJi

Carta · 6 Apr 2018 at 08:13

Do you have that controller plugged into a fan slot on the motherboard?

Lavinder · 6 Apr 2018 at 15:33

Carta said:
Do you have that controller plugged into a fan slot on the motherboard?

No I’m not sure how I would connect it?

bimbleuk · 7 Apr 2018 at 06:55

I just received one and it looks like the hub only controls the RGB and the fans run at 100%.

Mine doesn't even work and I may be missing an IR (remote receiver) sensor. Do you have a sensor that plugs in the 2 pin connector (imgur.com/jys1aJi) next to the power connector?

bimbleuk · 7 Apr 2018 at 10:49

OK I did some digging and Lian li use the same controller except due to penny pinching the Kolink controller doesn't have the speed control cable that I can see.

So you could buy one of those to get fan speed control but you can;t buy it separately! 2 pin is for the speed control.

Lian li BORA RGB controller

https://www.youtube.com/watch?v=6wHJNr3zJU0

From the video description.

"So I got confirmation from Lian Li, The fans are not capable of reporting RPM back to the motherboard. The motherboard can control the speed via PWM, but there is not RPM sense wire on the plug to the motherboard."

Lavinder · 7 Apr 2018 at 11:40

I just plugged everything in and the remote worked?

So are you saying that the 2 pin sensors can’t be purchased seperately? Thanks for finding that video!

bimbleuk · 7 Apr 2018 at 13:30

my controller was already mounted in the case and someone had plugged the fans in 4, 5 & 6 and that's why the RGB wasn't working! There is no separate sensor it's in the hub case. OCUK support implied I was probably missing an IR receiver but that's not the case so all I did was rotate the hub 180 and used 1, 2 & 3.

If the Kolink hub is the same as the Lian Li bar the laser etched letters then all we need is the wire/wires that go from the 2 pin connector to a motherboard fan connector (must be PWM). The Lian Li has the 2 pins integrated in to 4 pin molex power connector wiring so i'm not exactly sure where each pin goes but I may play futher.

I was already able to cobble a variable resistor from various adapters I have lying around but it's not ideal and not neat.

As usual they have everything on Ebay.com but not here.

https://www.ebay.co.uk/i/112373057882?chn=ps&dispItem=1&adgroupid=13585920426&rlsatarget=aud-295856144804

la-142405558626&abcId=&adtype=pla&merchantid=113605191&poi=&googleloc=1006636&device=c&campaignid=207297426&crdt=0

Lavinder · 7 Apr 2018 at 20:07

https://fccid.io/2ANYX-BORA120R/User-Manual/Users-Manual-3658203

I found this if its any help!

Ive spend hours trying to find the cable now surely someone should supply it somewhere!

bimbleuk · 8 Apr 2018 at 08:45

Comparing the diagram to the Kolink circuit board shows a possible difference. The 12V+ from the 4 molex connector in the diagram (Lian Li) on the Kolink circuit board idicates 5V+

So unless I can get an image of the Lian Li circuit board to compare as it stands they may be slightly different.

That would mean making up a mini wiring loom and either soldering direct to the circuit board or trying to find a small 2 pin connector to match. For me that's not worth the effort as I'm not bothered by the fans.

One of the 4 pin Molex to 4 pin Molex inline variable resistor boxes would be easier though not easy to get.

joaonctm · 5 Mar 2019 at 11:34

Hello. I have the same "problem" witch is not be able to control the fans speeds.

@Lavinder, did you find the proper cable?

pieman109 · 13 Mar 2019 at 12:38

This sounds very similar to my problem. I've got a Kolink case with rgb fans with a similar looking controller, I wanted to add a rear fan so I picked up a generic rgb 120mm fan from the bay with a 6 pin connector which in appearance looks identical to the six pin connectors on the case fans. Of course I plugged it in and nothing happens, no spin, no lights. I think some of these manufacturers use a different pin/wiring config to what you'd expect. Problem is I can't find any identification on the controller to enable me to use the correct fans.

gc4170 · 22 Mar 2019 at 10:11

I have this same issue, I wouldn't have bought the case if I had known that the fans spin on full speed all of the time.

joaonctm · 22 Mar 2019 at 11:54

I bought this fan kit: https://www.banggood.com/Coolmoon-6...p-1420001.html?rmmds=myorder&cur_warehouse=CN

The controller looks identical to the one that come with the case but this one allow rpm fan speed. I still haven't received it yet but when I do I'll replace them right away and i can give a feedback to you guys. Of course, another 40€ spent

Tomaz · 28 May 2019 at 18:23

joaonctm said:
I bought this fan kit: https://www.banggood.com/Coolmoon-6...p-1420001.html?rmmds=myorder&cur_warehouse=CN

The controller looks identical to the one that come with the case but this one allow rpm fan speed. I still haven't received it yet but when I do I'll replace them right away and i can give a feedback to you guys. Of course, another 40€ spent

Does it work ?

joaonctm · 29 May 2019 at 09:27

No. The controller only works with the fans that I bought.