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Amiga computer related discussion => General chat about Amiga topics => Topic started by: delshay on January 24, 2008, 02:59:20 PM

Title: amiga cooling
Post by: delshay on January 24, 2008, 02:59:20 PM
problems cooling your amiga.

http://www.tomshardware.com/2006/01/09/strip_out_the_fans/


**do at your own risk** modification not recommended
Title: Re: amiga cooling
Post by: tokyoracer on January 24, 2008, 03:13:18 PM
Fill an Amiga with cooking oil?! Insane! :crazy:  :crazy:  :crazy:
Title: Re: amiga cooling
Post by: Ral-Clan on January 24, 2008, 03:42:00 PM
It might work, but doesn't oil react with plastics and break them down over time?  I'm thinking about the plastic in wiring insulation & IC packages.

Also, cooking oil tends to "polymerize" over time - i.e. get gummy.  It's a real mess then.

Neat idea though.
Title: Re: amiga cooling
Post by: Tension on January 24, 2008, 04:01:27 PM
Madness.
Title: Re: amiga cooling
Post by: Damion on January 24, 2008, 07:11:20 PM
Yeah, someone did this on hardforum a few years back, then actually cooked up some fries in the same tray he was cooling his rig... LOL

Title: Re: amiga cooling
Post by: rkauer on January 24, 2008, 08:10:13 PM
Quote

ral-clan wrote:
It might work, but doesn't oil react with plastics and break them down over time?  I'm thinking about the plastic in wiring insulation & IC packages.


 Only mineral oil have solvents (who degrade plastics).
Quote

Also, cooking oil tends to "polymerize" over time - i.e. get gummy.  It's a real mess then.
Neat idea though.


 That's true, but it takes medium time to do it (a couple of months). But even in meantime there is a major problem: all vegetable oils have some degree of acidity. So they will corrode exposed metals (like chip pins, nude wires, solder pads, connectors, etc). :pancake:
Title: Re: amiga cooling
Post by: Rob on January 24, 2008, 08:25:24 PM
@-D-

There's also that old classic, the fried egg. (http://www.phys.ncku.edu.tw/~htsu/humor/fry_egg.html)
Title: Re: amiga cooling
Post by: bloodline on January 24, 2008, 08:41:56 PM
Thus one should use Motor oil.
Title: Re: amiga cooling
Post by: Argo on January 24, 2008, 08:59:03 PM
And when you change out the oil you can use it to fuels your diesel vehicle.
Title: Re: amiga cooling
Post by: rkauer on January 25, 2008, 02:00:34 AM
Quote

bloodline wrote:
Thus one should use Motor oil.


 Motor oil have solvents! You will destroy plastics inside a computer using it.
Title: Re: amiga cooling
Post by: AMC258 on January 25, 2008, 02:19:35 AM
Not all motor oils contain solvents!

In any case, the best possible oil I can think of for this application is Öl Held, from the company Hirschmann GmbH.  Of course, this is too expensive, so I'd probably opt to use distilled deionized water.
Title: Re: amiga cooling
Post by: delshay on January 25, 2008, 05:29:06 AM
most of us know about water cooling..
maybe replacing it with oil will be better ( no short )
Title: Re: amiga cooling
Post by: AMC258 on January 25, 2008, 11:50:36 PM
Short?  Do you not understand water is an insulator?  The only problem in using water is electrolosys.
Title: Re: amiga cooling
Post by: delshay on January 26, 2008, 02:23:23 PM
@AMC258

yes u are correct. my mistake.  
Title: Re: amiga cooling
Post by: Ral-Clan on January 26, 2008, 03:05:27 PM
Quote

AMC258 wrote:
Short?  Do you not understand water is an insulator?  The only problem in using water is electrolosys.


Could someone provide a source for this information?  I've always thought that water was a conductor, hence don't use electronics around the bathtub, wet floors, etc.

[EDIT] Ah, I think I understand.  Pure water is not a conductor, it's the dissolved metals and minerals in water that make it a conductor.  That's why you guys are talking about using distilled water as an insulator.  Have I got it now?
Title: Re: amiga cooling
Post by: Daedalus on January 26, 2008, 03:23:36 PM
Yeah, that's it. Water itself doesn't carry any loose electrons as H2O is a stable compound, therefore it doesn't conduct electricity. The problem with water is that it's an excellent solvent of minerals, so very quickly in contact with PCBs etc., it will dissolve some minerals from dirt, surface coatings etc. which will provide loose ions and electrons, and then it'll start conducting. Even a beaker of pure water left open to the air will quickly become impure as it absorbs molecules from the air.
Title: Re: amiga cooling
Post by: orange on January 26, 2008, 03:46:36 PM
@Daedalus
IIRC I read on slashdot, thats what happened after 15 minutes or so to a computer submerged in pure water (was running fine and then it broke). They also mentioned it being somewhat corrosive.