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Adam? ... is there a reason your laptop is in the fridge? (2006)

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Re: Adam? ... is there a reason your laptop is in the fridge? (2006)

#171

Post by malfist »

BizarroLand wrote: post #166
malfist wrote: post #164

Earlier quoted context omitted.

Motors have flyback diodes. Otherwise they'd burn out things every time they turn off

Not in most laptops they don't. https://forum.arduino.cc/t/is-a-flyback-diode-built-into-lap... "You will find those fans are brushless DC fans, they are controlled by an inbuilt driver circuit and as such do not need a flyback diode."

So you "disprove" my statement with some rando on the Arduino message board that has less than 20 posts in their lifetime?

What makes you think they're an authority?

Brushless motor still have fly back voltage that has to be clamped. You may not need to install a diode in the fan, but I can guarantee you that this "inbuilt driver circuit" has such a diode.

And if you read the linked thread a bit more you'd see where they test it and it does produce -100V at shutdown. If there wasn't a flyback diodes it'd be burning out ic's left and right

Re: Adam? ... is there a reason your laptop is in the fridge? (2006)

#172

Post by salawat »

KennyBlanken wrote: post #29
itsthecourier wrote: post #2

Why does this happen?

It doesn't; the whole thing is an urban legend. Goes like this: Try copying files, fails. Try copying files, fails. Try copying files, fails. Put laptop / drive in fridge. Try copying files, fails. Works. "Hey, putting it in the fridge worked!" Nope..it worked because they kept trying. People who comment on things like components shrinking don't understand how hard drives work.

Someone needs to brush up on their material science.

Re: Adam? ... is there a reason your laptop is in the fridge? (2006)

#173

Post by mikhailfranco »

... because the fridge (and the microwave) are the best pseudo-Faraday cages available to shield EM radiation in most domestic situations - and the microwave it tooo scary for a laptop.

... because the fridge is the last place most burglars look [citation needed].

Re: Adam? ... is there a reason your laptop is in the fridge? (2006)

#174

Post by eru »

haolez wrote: post #116
eru wrote: post #38

Earlier quoted context omitted.

What's a 'normal' Linux distro for comparison? Do you mean one that ships binaries, or perhaps one that also enables a GUI by default?

I think it was Debian with i386 packages. Compiling with Gentoo targeting my CPU and not a generic i386 machine made things much faster for such a crappy device.

That makes sense.

It's just that for recent distributions, if you have a reasonably common and modern CPU, you already get most of the optimizations you need in the pre-compiled packages.

Re: Adam? ... is there a reason your laptop is in the fridge? (2006)

#175

Post by sparrowInHand »

permo-w wrote: post #168
sparrowInHand wrote: post #106

Earlier quoted context omitted.

Its very common in loads of countrys - or at least terra-cotta tiles: Spain, Mexico, Italy, Greece. Its a good way to keep a house cool in summer.

terracotta tiles is a different matter from marble

Why? It occurs naturally in italy and some other country. Its just a material. One that is easily damaged by accidic cleaners, so not the luxery it sounds.

Marble ground down is even in toothpaste..

Re: Adam? ... is there a reason your laptop is in the fridge? (2006)

#176

Post by BizarroLand »

malfist wrote: post #171
BizarroLand wrote: post #166

Earlier quoted context omitted.

Not in most laptops they don't. https://forum.arduino.cc/t/is-a-flyback-diode-built-into-lap... "You will find those fans are brushless DC fans, they are controlled by an inbuilt driver circuit and as such do not need a flyback diode."

So you "disprove" my statement with some rando on the Arduino message board that has less than 20 posts in their lifetime? What makes you think they're an authority? Brushless motor still have fly back voltage that has to be clamped. You may not need to install a diode in the fan, but I can guarantee you that this "inbuilt driver circuit" has such a diode. And if you read the linked thread a bit more you'd see where…

Why would I accept your word without any backup?

Its on you to provide evidence of your claim, not on me to disprove your unfounded claim.

Re: Adam? ... is there a reason your laptop is in the fridge? (2006)

#177

Post by permo-w »

sparrowInHand wrote: post #175
permo-w wrote: post #168

Earlier quoted context omitted.

terracotta tiles is a different matter from marble

Why? It occurs naturally in italy and some other country. Its just a material. One that is easily damaged by accidic cleaners, so not the luxery it sounds. Marble ground down is even in toothpaste..

because marble is an expensive luxury and terracotta is not
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