Too much cooling?

Hi all, I was thinking of making my own notebook cooler, one with a fan directly over the air intake.

I was wondering if too much air going into the intake will spoil the fan inside, kinda like the air is moving faster than the internal fan can handle.

Thanks!

 

You could increase the rate of wear on a fan by spinning it faster than it's intended design speed, but I imagine you would have to push the fan far beyond it's design. Think ridiculous speed.

 

At first, I wasn't even going to read this thread (title seemed kinda silly), but now that I have, I see you have a good question.

I'm going to agree with Bog. I think you would have to spin that fan about 1500 maybe 2000 rpm faster than normal to hurt the fan bearing, over time. I don't think that's going to happen. But please do record your speeds with and without your home made cooler. I would like to know what the increase is myself.

I was thinking about making my own cooler also. I had the same thought as you, to put the output right where the intake is for the system fan. I think I'll do it now. Thanks for the motivation.

 

Heheh yes, I guess I didn't really put too much thinking into the title.

I'm thinking of fans at the intake, the HDD and the wireless card positions. The latter two shouldn't be a problem, though it might lift my laptop ridiculously high(m1330 here).

 

I think that's an excellent idea. But what I might do is put an angle on my design (higher in the back than in the front). I would put one good size fan in the back of the unit, then I would build duct work that would carry the air to each place that you mentioned. And the hdd cooling would be awesome if you could drill holes, or cut slots in the case itself so that air could circulate around the bottom of the HD.

Edit: obviously, you are doing some serious mods by drilling holes in your system case. You most likely would void your warranty. I am not sure though about warranty issues.

 

My hdd cover already has slits to ventilate it, but its right below the aluminium palmrest, so it gets uncomfortably hot. This should cool it way into the low 30s.

As for the ducts, that sounds a little too complicated heheh. I was thinking of just a mesh with fans below, that's why putting fans right at the front of the laptop will raise it quite high, considering the height of the fan and the air volume needed underneath it.

Ah well, I'll try to get the air intake fan done first.

 

I suggested my design because it would minimize needing to be so raised at the front. You have to raise it there only because you need to put a fan there. Either using a duct system, or using a very low profile fan will keep your design slim towards the front.

 

Hmm, maybe a small fan for the HDD will do. Shucks, I went shopping today and didn't see anything that can be used for the frame. =(

 

no external fan can screw your internal fan, trust me, ive tried

HOWEVER! compressed air can damage your fan! so just be careful when cleaning your vents with those compressed air cans...

some notebook coolers feature a large fan that will also get air into the wireless card and HD compartment, but you can also put a fan directly below the compartment and thanks to the little openings you will be able to cool it a bit