add a small 5v fan internally?

So, I have a small 5v 0.07A fan that I am planning on connecting to a usb port for power. I will have a little switch in there too so I can turn it on/off.
I have tried running the fan off usb and it runs at a perfect speed, plently of air flow and not too loud. I have two questions:
1. How will this affect my battery life?
2. where is the best place to put it?
a) above the chipset.
b) above the HDD.
c) above a heatpipe
d) other ( I can maybe make some space for it in other areas if anyone thinks it would be better to cool something else).

right now there is just enough space for the fan above the chipset and the HDD so it would be easy to put it in one of those two areas. I could buy a slightly thinner fan that would fit above the heatpipe. A slimmer fan could almost fit anywhere so please advise of the best area.

the fan I currently have is about 3cm x 3cm x1cm. I'm sure it would be cheap to buy a simmilar fan but thinner.

 

I doubt that it would affect your battery life as with any other USB devices.

You alone can determine where you gonna install it internally. Got any pics to share.

cheers ...

 

does a USB port provide 500mA?
If that is true then I should be able to power serveral small fans, one above the ram, one above the chipset and another above a heatpipe.

 

We need some pics of the fan and the internals lol, I think usb support up to 5volts.
Please support some pics and where you gonna buy the fan because i would like to do something like this and also how are you powering the fan from inside.

 

Here are some photos:
http://s896.photobucket.com/albums/ac167/moral_HaZaRd/

I am uploading a new album with photos of my fan and some others of my motherboard. I thought I would just go to my local electronics store and look for a fan that suits the project. But I just checked online and I didn't see anything thin enough. so I will go to my garage and check my old computers and laptops to see if I can salvage a good fan. anything under a cm thick will suit me.

 

yep... one USB port provides 5V 500mA ... you could try to draw more, but most laptops don't have that current to spare

USB 3.0 says 900mA, but probably too early to count that in

 

Ok the new album is:
http://s896.photobucket.com/albums/ac167/moral_HaZaRd/fan/

basically to power the fan from the inside;
just use the points where your usb port has been soldered onto the motherboard. use the outer two points. I have a picture in that album where you can see I have 8 green dots, there are 4 for each usb port and I have two ports there. I have also marked with red the two points that I will connect to.

A really nice fan is one like:
http://www.jaycar.com.au/productView.asp?ID=YX2530&keywords=fan&form=KEYWORD

But much smaller, which I can't seem to find yet.

Edit: all of my photos are quite large so you have to zoom in.
Also sorry for the bluryness of some photos.

 

Lol i never heard of this being done, you one crazy mf. lol Thanks man and keep this updated.

 

Well right now I am going to take apart this notebook to test something for my other thread, and while I have it open I will put in my current fan.
I will take some good clear photos and I will upload them within 2 hours.

 

Dont you have the fan vent?

 

I don't understand, do you mean does my laptop have a fan already then yes but I wan't extra cooling.

Also I have just used a screw driver to test the actual amount of space that I have and it turns out that my current fan is a little to thick.

Now I am looking for a fan simmilar to the one here:
http://www.sphere.bc.ca/test/fans-5v.html

GM0502PEV2-8
Maglev
5VDC Fan

it's 6mm thick, perfect. Now I would like to get my hands on it but I don't wan't to buy from that website.

 

Sorry its late i mean dont you need to give the fan room to make it run ?

 

I have many holes on the bottom of the notebook so the fan will be put against those holes to get the air.

I think it would be best to use one of these,
35mm x 35mm x 6mm Sunon DC 5V Blower Fan:
http://www.buyextras.com/su35dc5vblfa.html

 

$17 for one of those, check out MPJA, they have a decent 5V blower for much less

http://www.mpja.com/prodinfo.asp?number=17866+FN

I have bought from them many times. They basically take their parts from discarded electronics

K-TRON

 

thanks for that link, athough the blower is 9mm thick while I have found a 6mm thick one.

also I checked the ordering info and found this:
MINIMUM ORDER $15.00 - Orders under $15.00 will be returned.

so it's really not that much cheaper unless you buy another item with it.

but thanks for the help, it is appreciated.

 

Wow, $15 minimum order. Thats new. I ordered something from them about 3 months ago for $5.85 after shipping.

Sorry

K-TRON

 

no need to say sorry, your post was still usefull.

 

How you gonna make the fan stay in place (where you gonna screw it in) and can you take a picture of where you gonna wire it. ? Thanks

 

Hey nice mod you got going there. Please consider taking alot of pictures and making a How-to while after you do that mod, because alot of people could benefit from that. It would be cool for others that wanna try the same thing

Anyway good luck.

 

Sorry to dissapoint but I won't be doing the mod for a while, at least untill I finish my overclock and get my hands on a nice fan.

Also it would be hard to write a how to for this since it's very different on every notebook.
I guess the steps to take would be:
1. dissmatle your notebook too find a good spot for the fan.
2. Find a 5V fan that will fit.
3. Test the fan externally first to check that the speed is right and that the sound is not so loud.
use the outer two pins of the USB port, there should be 4 pins in total.
4. Glue or screw or whatever to get the fan to stay inside and not move. (I personally would glue)
5.connect the fan wires to the points where your usb is soldered onto the motherboard.

It's important to note that some fans only work it you put + and - in the right way. thats another reason to test it externally before you put it in.

Also this will most likely void any warrenty. BEWARE if you like to have a warrenty.

Edit: typo