C90S Fan Technical info & Schematics

Since I saw the post from our fellow member Zigg0's where he modified the fan for the c90s I got interested to see if something further and more esthetic could be done. Therefore for all your modder out there (who have an electronic Eng. degree or good experience) here are the c90s fan tech info & schematics so it could help you to do further modification or find something similar in the market (just for the experience ones so they can share their finds here)

http://www.delta.com.tw/product/cp/dcfans/download/pdf/AFB/AFB40x40x15mm.pdf

C90S fan model is: AFB0412VHB

OK, UPDATE...FAN CHART BEHAVIOUR FOR THE C90S



As we already know, Fans start to work due to cpu temperature needs and not for gpu needs.

UPDATE from ASUS Tech support about the FAN Chart:

First of all, our thermal policy (Fan duty base on CPU temperature) is the step mode, you know, the curve is in step-to-step mode as the picture shows, so the blue curve means the Fan duty climbs up as the CPU temperature gets higher, but the change of Fan duty is in step mode to avoid too much noise, for example, when CPU temperature reaches about 56 degree C, the Fan duty will change from 35rpm to 60rpm and will keep 60 until the CPU temperature is as high as 65 degree C. On the contrary, the red curve means the Fan duty gets down as the CPU temperature drops, the model is also the step-to-step mode.

All this thermal policy is controlled by BIOS setting, the thermal sensor will detect and monitor the CPU temperature to control the Fan to avoid overheating and also not to waste too much power. According to the curve, the Fan starts to work at the CPU temperature of around 50 degree C.

The unit of Fan duty is rpm/min.

 

Heh thats a bit much, all we realy needed was the nominal voltage or the voltage range. I guess having the measurements is ok if somebody plans to replace the fans but delta makes top end fans so I dont think you will find much that can replace them and be considered an upgrade.

What I do need to do tho is find out what size variable resistor you need so that I can upgrade ZiggO's mod to be 100% controllable, dont want 100%?? how about 95% or 70% ect.... A full control of the fan speed via a variable resistor aka "pent"

Next time I take my c90 apart I will measure all that stuff and find out.

 

well you have the numbers so you should be able to calculate that without a multimeter. Airflow is very useful to see how is the temperature behavior on the gpu and cpu under the c90s case so you indeed could do some mods with the fan case itself...i already saw some crazier mods where people open holes which I would not advise to do in the notebook case...anyway info is power and never is extra info when you want to do some serious fooling around

 

How many people here have a degree in elec/comp Eng? >-< How well, 2 years and half left (Stupid CÉgep, stupid Cégep !!). If I a had better marks and money I could go directly to Ottawa's University but I totally messed Maths and Physics in the first half

Here I feel everyone has one and on another forum I go I feel every speaks japanese =/.

 

なに　です　か？

Jcms-さん

Thing is I was gonna measure the current in the circuit. Good ol V=IR I dont trust what the PDF says for some reason and would rather have real life current readings.

 

What does the 1st word mean? I know about the 3 other ones. I put the first in babelfish but that wouldn't make any sense >-<

V=IR, that remembers last year's physics class. Why the hell can't our science programm use the good international symbols?

Like, we used U instead of E for intensity.... (okay, they call it Electromotive Force in english?)

 

nani desu ka, the first word pretty much means "what?"

V=IR is what I learned in high school, I was in some honors classes so maybe I touched on some college level stuff but not much.

I have 2/3 of the japanese alphabet memorized, the 3rd one the Kanji I dont have a clue.

 

actually, V=RI is the simple equation, on the table you have the voltage range so you use a more complicate equation to be more accurate on your R result (college lvel) and all the info in that table is pretty useful for people who really want to try something different & serious but I guess it is up to the people who check this forum to make a good use of the given info...

 

Glad I got sheer ambition :]

 

Yeah well, we're using U rather than V in the formula here in Quebec. [high school ]. I got the second class on electricity set upped for next year.

 

well, some people are redesigning the fan case an even try to work with new fans so this info is comming handing to them...Anyway, my friends and I working on a new fan as well...

 

Hi guys,

do you think that 4 fans like this one :
http://www.silenx.com/ixtremaprofans.asp?sku=ixp-11-14
can replace the originals fans ?

I'm not sure cause they have a lower air flow and it could make the computer overheat, and it's seems that the fixation hole are more tiny on asus's fans.
I didn't know if the power plug are the same too.

PS : English isn't my mother language so, i'm sorry for all the mistake in my text.

 

OK, UPDATE...FAN CHART BEHAVIOUR FOR THE C90S



As we already know, Fans start to work due to cpu temperature needs and not for gpu needs.

 

Where did you get that at? And what type of measurement/unit is "Fan Duty" in?

 

It was from ASUS tech department. They explain the obvious which was already explained in this board "Fan start due to cpu temperatures risen" (in few words, no sensor on the gpu fan The chart reflex at what point FAN start due to temperatures risen and when it stops when temperatures are lowered.

Fan duty units refer to rpm/min

 

Check the pdf document on this thread and compare to your fans spec and you will now it wont work fine

 

Why cause of his current draw of 0.04A for silenx and 0.24A for delta ?

Actually i know that will not work fine cause the power connector of silenx is 8mm large (standard size) and those of delta are ~5mm (and i can't find fan with the same power connector)

 

You can also patch the connector to the other fan yourself. But if the diff in the needed current is so large I wouldn't advise trying it...

 

The problem is that i don't want to break the original fans (in case of RMA need) and i don't find the same connector in electronic store.