I think it is a waste of money, most laptops have built in fans that remove the heat. The only problems I have ever had with a laptop is the keyboard and touchpad, never anything caused by heat. And I live in So Cali where it can get pretty hot.
My main laptop I have running 12-14 hours a day, the other older laptop I have I keep on for days if not weeks at a time. I use that one to play music which is playing as we speak at work (I am at home right now).
I was making a passing comment, not off topic, but not helping either.
My advise would be that if you are as concerned as you sound about the importance of your work, then most definitly go for it. If you are unsure, what is a few dollars when your laptop and work are at risk.
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But paying $20 is not my concern if for protecting my laptop.
My concern is the return of the $20 on the benefit of my laptop. In other words: if the outcome is not that good, (which is obviously not keeping my laptop cool), then I won't even pay that money.
But if you people are sure (tried it before) that this device would actually work, then I will go for it. But I just wonder how does it work, since it intakes the air and blows it out, how would it make the laptop cooler?
My laptop runs 24 hours a day sometimes, it has a P4 2.4Ghz DESKTOP processor which can get very hot espiecally in a laptop. I had a problem with it last summer over heating and shutting down, but solved this problem with a simple air canistor, couldn't believe the amount of dust that came out the back. Has been running fine ever since, I just give it a bit of a blow with the air every now and then to keep all the fans clear from dust.
The last laptop I had didn't have any little "feet" to raise its butt off a surface. Going the cheap route, I bought some suction cup hooks. The ones with the biggest suction cups I could find. After popping the hooks off, I used the suction cups for feet. A little bit of rubber cement was needed to keep the suctions cups on as the case had a matt finish so couldn't keep suction. The bottom was raised up about an inch, so there was passive airflow. The increased height didn't effect my typing.
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The two laptops i have (a VAIO and a Gateway) both get very hot, but its usually a safe hot, im talking about hot in my lap, thats the best reason i could see for getting one of thsee is to keep my lap cool
Well, the stock fan with your laptop should be sufficient to maintain the CPU and innards of the device at a reliable temperature. If your temperature is running over 40c, you should probably be concerned.
The only reason I can see for getting a better cooler is if you're overclocking.
Well, one of the biggest symptoms of an overheating processor is a dramatic slowdown in the speed of applications and video games (this is usually more noticable in 3d games).
I guess if you're really worried you could invest into a good coolant system (the more money you pay, the better system you'll likely get if you're smart and research it, the longer the system will last).
I wouldn't worry about any of it if the laptop is still under warranty though but that's just me.
Well, I can't say I'm an expert at laptop cooling. But from pictures, I can tell you from theory that it's a basic heatsink (meaning, a lot of heat is transferred from the laptop into the metal) and the fans on this cooling pad get rid of the heat by blowing it off. Some of the pads I've seen come with small legs, so I assume it is blowing the heat off outwards (I don't see how it could work by blowing the heat inside the laptop).