Laptop fan Questions

[HotDog-Cart]

EDIT: Upon looking and reviews of all the fan, NONE of them on that website blow air out the top.

Question:
If I buy a fan that SUCKS air out the top, and vents air out the side, would opening it up, and turning the fan upside down make it BLOW air?

Question 2:
Would reversing the polarity (Postive to Negative and vice versa), make the fans spin the other way?

[HotDog-Cart]

Bump.

[eurddrue]

I dunno but question #2 souds as rediculous to me as reversing the batteries to make a gba work backwards They probably sell special fans that do exactly what you're wanting to do.

[Valium]

1) Probably, but flipping the fan around yields the same result

2) Some do, some don't. I've only ever seen it not work with computer fans though, but give it a try, it won't hurt the motor.

[GonzoMPM-1]

Re: Question 2, probably not. First, the fan blades will be shaped for best moving air in the intended direction of rotation. Second, the multiple coils are probably configured so that self-start for the DC motor works best, if at all, only in the intended polarity.

Answer: Flip that fan around physically.

[bacteria]

EDIT: Upon looking and reviews of all the fan, NONE of them on that website blow air out the top.

Question:
If I buy a fan that SUCKS air out the top, and vents air out the side, would opening it up, and turning the fan upside down make it BLOW air?

One side of a fan blows and the other sucks.

A bit like a politician really! (ahem).

Question 2:
Would reversing the polarity (Postive to Negative and vice versa), make the fans spin the other way?

No, would stop it working; anyway, the fan blades would need rotating.

Just physically rotate the fan.

[timmeh87]

Why dont you just buy the proper replacement part from like ebay, or google.

[HotDog-Cart]

Timmeh, my laptop was sort of a "test" laptop from a company that I got to keep. It has a cpu fan, but thats the only fan it has. It still gets hot. And its not clogged or anything. So I need to buy a fan stand or what ever for it. The fans are 2000 rpm. Im sure that will be enough to cool it down. (:D)

[HotDog-Cart]

Got the fan in the mail. It actually blows air! So, thats good. One problem though.

When running a game, my laptop runs at 75 degrees celsius.

Thats hott, but what do you expect? I have a Intel Core 2 Duo, and a 768mb 8600M GT videocard. (Its 512mb + 256mb shared from my ram.)

The PC runs hott. Its drop out rate is like 82 degrees celsius.

So now, this fan runs at 1800-2200 rpm. (On the back it says 2000rpm +- 10%). It has two USB slots on it. Ones for plugging in the power to the fans, and the other is a passthrough. (The 2nd slot USB slot is there, so the fan doesnt really take up a USB slot on your pc. As you can plug anything that is USB into the 2nd slot, and it will get powered.)

So its input is 5v, as that is what a standard USB connector gives.

Now two questions.

1) How could I make this 1800-2200 rpm fan spin faster? Its not cooling my laptop hardly. Its making it go down like... 2 degrees celsius when on idle. I have yet to test it when the PC is under stress. I dont care how loud the fan is, I just want it to be faster.

2) I dont get how this thing has two USB ports. One USB port is for power. The other is a passthrough, like I said. But, if these fans need 5v to run, how can they supply 5v to the extra USB?

EDIT: Also, I'm running into a problem. My computer PHYSICALLY gets hot. Like, the plastic, gets hot from the components inside the computer. Now, you think a fan would fix this as it would cool down the components. Wrong!. The fan is only getting rid of the hot air generated off of my computer. So basically, its getting rid of the heat thats generated by my laptop, INSTEAD of cooling down the component that is making the laptop hot. What do I do now?!

[Harshboy]

Almost all laptops get really hot, its just a flaw.

Deal with it? Besides, Laptops are terrible for everything except browsing the web and using Office. Get a Desktop.

[bicostp]

When was the last time you took some compressed air to it? If it's seen more than a year of constant use, it's due for a cleaning.

[hailrazer]

Deal with it? Besides, Laptops are terrible for everything except browsing the web and using Office. Get a Desktop.

Wow, haven't looked at laptops lately have you

http://computershopper.com/reviews/alie ... top-review

[SonyPortableizer]

Almost all laptops get really hot, its just a flaw.

They get hot so they dont over heat, and they release a lot because it can easily do so-and the ones that dont are slow, so I thing its annoying not a flaw.


+The fan turning the opposite direction would do nothing because the way they are tilted, resulting in just something spinning and not creating as much airflow as it could

[HotDog-Cart]

Its sometimes hard to deal with it. My laptops specs can handle crysis and such, but if I play HL2 for hours, it MAY shut off due to the temperature hitting the cut off point at 82 degrees celsius.

But thats only happened once, because I was streaming live video while playing HL2, and having MSN, aim, and some other game open.

Can anyone awnser my questions?

1) How could I make this 1800-2200 rpm fan spin faster? Its not cooling my laptop hardly. Its making it go down like... 2 degrees celsius when on idle. I have yet to test it when the PC is under stress. I dont care how loud the fan is, I just want it to be faster.

2) I dont get how this thing has two USB ports. One USB port is for power. The other is a passthrough, like I said. But, if these fans need 5v to run, how can they supply 5v to the extra USB?

EDIT: Also, I'm running into a problem. My computer PHYSICALLY gets hot. Like, the plastic, gets hot from the components inside the computer. Now, you think a fan would fix this as it would cool down the components. Wrong!. The fan is only getting rid of the hot air generated off of my computer. So basically, its getting rid of the heat thats generated by my laptop, INSTEAD of cooling down the component that is making the laptop hot. What do I do now?!

Also bic, I unscrewed the panel off of the bottom of the laptop and cleaned out the CPU fan about a month back. But for some reason, I cannot tell if theres another fan in this laptop. (Some laptops have a fan under the keyboard, some other ones have them another place. They are NOT CPU fans. They are fans to help with airflow, sort of like fans on the side of a PC case.) I cannot tell if theres one of these fans in my laptop, as I do not want to go unscrewing my laptop insearch of one. (and there is no sign of any other fan in the unscrewable compartments on the bottom of the laptop.)

[Ben Cebhrem]

1) How could I make this 1800-2200 rpm fan spin faster? Its not cooling my laptop hardly. Its making it go down like... 2 degrees celsius when on idle. I have yet to test it when the PC is under stress. I dont care how loud the fan is, I just want it to be faster.

2) I dont get how this thing has two USB ports. One USB port is for power. The other is a passthrough, like I said. But, if these fans need 5v to run, how can they supply 5v to the extra USB?

1) Use more voltage. It probably won't help any though, if it's only helping it to get cooler when idle.

2) It's not, not really. Check the power draw of the fan. Subtract that from 500 mA, and you have the maximum power draw left on that other USB (are you using a cooling pad? It's rather ambiguous what exactly you mean by 'other USB port').