Project: Clevo W370SS - Cooling Overhaul

CleverBalls

CleverBalls

CleverBalls

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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 :)

xoaPKu2.jpg

Here you can see the motherboard of the laptop

awpGepn.jpg

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.
 
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You are a braver man than most doing a mod like this!

How are you going to attach the heatpipe on the new heatsink fan assembly to the CPU block?

I think plugging 2 fans into the 1 header will cause the load to double and could blow the port on the motherboard - you will need to find out the rating of the fan header and how much power each fan consumes... might not be easy to find out.
 
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?

vaYdnba.png
 
CleverBalls said:
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?
Click to expand...

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.
 
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.
Click to expand...

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?
 
The splitter will run them in parallel, they will both share the same 5V voltage but double the current will be required.

Both fans should be rated at 5V, the 7V max is what the chip might output if there is fluctuations in the supply voltage or other factors. However, that is under extreme circumstances and is just there to cover the chip makers ass
 
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
Click to expand...

Looks like with have a different story under the general description - maybe the 1A rating is the shut off point?
 
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The 1A will be the shut off point, I hope it works with two tho :)


The fan headers on laptops are different to desktops, so you will probably have to make your own.

Just slice off wire 1 and 2 of the original fan and solder/terminal block the new and old fans to the wires. not as nice as a dedicated header, but will get the job done.
 
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