Are Gentle typhoon still the best? And fan speed control?

[Pierre3400]

Hey guys,

Im slowly gearing up to start spending money on my 800D project.

For the project is will be needing 12x120mm fans for push/pull on the rads.

My intention was always to use the Gentle Typhoon, to move maximum air at lowest possible speed.

This would then be AP 30 with a fan speed controller.

In all honesty, i want to control ALL 12 fans with one controller. (one turning knob) and i want that controller to be the Lamptron FC5 V2 Fan Controller.

Is this overkill? Would there be a way i could make this work? and are my best choice in fans still the gentle typhoons?

OR as a whole other options, is there a way i can have auto fan speed, so that tha fans regulate speed according to temperature of the liquid cooling?

 

[DarrenP]

I would use Noctua fans personally, as they're nearly silent, and they move a lot of air. I don't know much on fan controllers so i'll leave that to another member.

 

[S_I_N]

12 fans on a single channel is asking for issues. I havent read the specs of that controller but I doubt it'll handle 12 fans.

 

[DarrenP]

You could always get one of those 5.25" bay fan controllers and use 4 knobs for all?

 

[Mjolnir]

http://www.silentpcreview.com/article1342-page9.html

The GT is still very heavily favoured. Considering its many year old design and no-fuss extras (no fancy LNA, no fancy rubber grommets) it's still a fantastic fan series. 12 fans? Are ALL these fans on rads? I'd only use the GT's on Rads. And 12 on one fan controller is doable but not with a single knob (Well; I wouldn't anyway). Maybe 4 per each knob could work. But if some of the fans are just airflow fans (non radiator) I wouldn't use GTs personally.

I think providing us info with your '800D build plan' would help more first. ^^

 

[Mandrake4565]

They are great fans but you're not going to be able to run them off 1 channel. If I did the math correctly, they are using almost 7 watts per fan. 1 channel is capable of 30w on that controller. I personally wouldn't run more then 3 per channel.

 

[EarthDog]

They are great fans but you're not going to be able to run them off 1 channel. If I did the math correctly, they are using almost 7 watts per fan. 1 channel is capable of 30w on that controller. I personally wouldn't run more then 3 per channel.

Here we go! Spot on!

You need to look at the fan specs to see what amperage they need (then convert to watts by *12). Assuming MD4565's math is correct @ 7W, you can run 4 fans on a channel with that controller.

 

[Mandrake4565]

Rated Voltage: DC12V
Rated Current: 0.56A

so .56*12=6.72

 

[EarthDog]

Spot on! 4 of w/e those fans are per channel on that controller.

 

[Pierre3400]

Ok. All sounds great.

I dont mind having to do some mods of some sort to run all 12 of one knob, doesnt have to be that controller.

All 12 fans will be rads yes. I will only be using GT's on rads.

The rest of the fans will we Enermax, unless i find another one i like with white LED, since those enermax pretty much barely move any air around.

Idea on how i could run all 12 fans of one control unit would be awesome. But i would love to hear from anyone with know how on how i could run the fan speed according to the water temp.

Im not sure, but i believe i heard Linus talk it something similar on his personal rig.

 

[EarthDog]

If you want 12 fans on one knob, you will need a controller that has 100W /channel on it (12*7 = 96W). I have never seen one of those before.

Fan speed according to the pump? The pump doesnt need touched. I suggest getting a D5 Vario, setting it to 3 (silent and easily goes through 2 rads and 3 blocks) and trying to figure out how the heck you are going to shoehorn 100W worth of fans on ONE channel...

EDIT: Lamptron Hummer 100W /CH. However its an on off deal, not adjustable...

 

[wagex]

http://www.galco.com/buy/Ohmite/RKS5K0 with some modding...

p.s. your not going to like the price.

 

[Conumdrum]

You MUST run the AP 30's? In push pull? Why? I must ask.

Please explain your need for this.

Your going to be running two 120x3 rads I think right? You can use AP-15's at 1000 RPM and have plenty of cooling. And when set to 1000 you never have to touch the knob again.

And even at that 6 AP-15s is all you need for that amount of raddage to start with. Save yourself some big $$.

 

[Pierre3400]

You MUST run the AP 30's? In push pull? Why? I must ask.

Please explain your need for this.

Your going to be running two 120x3 rads I think right? You can use AP-15's at 1000 RPM and have plenty of cooling. And when set to 1000 you never have to touch the knob again.

And even at that 6 AP-15s is all you need for that amount of raddage to start with. Save yourself some big $$.

I will be honest, i do appreciate the honesty, and picking 15's might be a decent idea, but i am no changing my build idea as far as amounts of fans.

Money isnt the object on this project

 

[MattNo5ss]

AP-15 only uses 4.32W on startup and 0.996W after startup. So, 12 of those would be 51.84W at startup and 11.952W afterwards. All 12 could probably be run on a single 50W channel since ratings, in general, are usually understated to make sure to give a little wiggle room if something causes a situation where the rating is exceeded for a short period of time.

50W channel fans controllers would be easier to find

EDIT: Really, if you loaded the channel with 12 fans, the vdrop will probably make the actual wattage less than 50W anyway.

 

[DaaG]

You may want to check into new Lamptron CW611

Also, if your wanting the fans at lowest speed possible then the AP-30 is pointless. The 15s would let you run more on one channel. I have the FC5v2 with 8 ap-15s on it and seems fine. I have only tested tho no prolonged use.

 

[NiHaoMike]

It's pretty easy to build a fan controller from scratch. A 555 driving an open loop buck converter works nicely.

 

[Conumdrum]

Yep. I built one of them. Had to learn about soldering. Then breadboarding. Then finding a place with a magic 555 with a deframulator with a muffler bearing.

Easy for who?

Come on dude. Focus on helping the OP. Not on your amazing EE degree.

 

[NiHaoMike]

http://www.nomad.ee/micros/pwm555.html
Seriously, a 555 driving an open loop buck converter is one of the simplest things to build. (You can use an Arduino instead of a 555 if you like.)

 

[ehume]

Actually, I think up to 4 or 5 AP-30's would be great. Just set yourself up with a PWM splitter, and mod the fans to run on PWM. Far cheaper than a fan controller. Check out this link, for a how-to. Or this link, for converting an AP-30.