Project: Clevo W370SS - Cooling Overhaul

CleverBalls · 6 Jun 2014 at 11:36

Project Laptop: Clevo W370SS - Cooling Overhaul

Hey, I am planning on adding another fan to my Clevo W370SS and a quick question was needed before I uploaded my plans and the ensuing build.

If I use a 3 Pin Fan Controller splitter to power the extra fan will this impede the performance of the first fan?

Here is the brief plan, If someone could get back to me about the splitter that would be great

Here you can see the motherboard of the laptop

And here is the briefly drawn up plan, the main change will be the removal of the SATA port and the cutting back of the chassis and the cutting of some vent holes.

The additional parts I will be adding will be a Dell Inspiron 6400 Laptop Heatsink & Fan.

CleverBalls · 6 Jun 2014 at 13:20

Hey thanks for the post, I plan on using a Thermal Adhesive such as http://www.amazon.co.uk/Arctic-Silver-Thermal-Adhesive/dp/B0007VT652 to bond the heat pipe to the CPU heatsink. Once the new Fan/Heatsink has arrived I will take to-scale photos of the laptop and the new fan and then align them using photoshop to carefully plan where the heat pipe will go.

CleverBalls · 11 Jun 2014 at 09:54

OK so, I have an update! I have spoken to the guys at Clevo and they have provided me with this diagram of the Motherboard (I'm guessing?) - can anyone help me decipher it and find out how much juice the header can take?

CleverBalls · 11 Jun 2014 at 11:42

Greeny1994 said:
Around 1A (Section 7.4)

http://www.nuvoton.com/hq/enu/Produ...tICs/Others/Documents/NCT3940S_NCT3940S-A.pdf

You sir, are a gentleman and a scholar - How did you find the model from the schematic I provided?

OK so If I use two fans with a splitter that are rated at 5V and 0.42A this shouldn't overload the header?

CleverBalls · 11 Jun 2014 at 21:43

Greeny1994 said:
A google of the fan controller chip threw it up

The current limiter specs say a minimum of 0.7A and typical of 1A.

It "should" work. It wouldn't fry the chip tho, so there's no harm in trying.

Ah very good! - I'm terrible at electronics would it matter if both fans were rated 5v, as the absolute limit on the header suggests that 7v should be used - Will this matter if both fans are running in parallel and potentially requiring 10v?

CleverBalls · 12 Jun 2014 at 10:33

That's great - I just need to source a splitter now, does a commercial solution exist or will I have to create my own wiring?

*EDIT

This is a bit strange:

Low dropout linear regulator which is designed with a p-channel MOSFET to power a DC fan and delivers output current up to 500mA

Looks like with have a different story under the general description - maybe the 1A rating is the shut off point?