pyrros@cis.udel.edu (Christos Pyrros) (05/06/91)
People, PEOPLE, get with the program!!! Motherboards & keyboards in WATER? H2O? Di-hydrogen oxide? That clear fluid? Hmm, I don't think so... Circuit boards (which includes motherboards and the circuit board in a keyboard and lots of other boards) are, well, they're not plastic. I'm no expert on circuit board composition, but older circiut boards behave like paper, ie they will absorb water, etc. Newer circuit boards are less suseptible to this, but they can still absorb water. Don't forget that water also contains clorine and other chemicals that can do nasty things to circuit boards and edge connectors. Also don't forget that chips are NOT guaranteed to be waterproof and, well, water could get stuck in a chip. OK, ok, I don't want to start an argument and waste lots of bandwidth and some of the things I've said here may not be 100% accuracte, HOWEVER bathing circuit boards, keyboards, and other electronic components has never been an accepted practice. I don't think any technical person would ever recommend such maintainance! We could take this discussion over sci.electronics (which I do read) if anyone wants to pursue this. Chris
dragon@nuge106.its.rpi.edu (Dragon) (05/07/91)
pyrros@cis.udel.edu (Christos Pyrros) writes: >People, PEOPLE, get with the program!!! >Motherboards & keyboards in WATER? H2O? Di-hydrogen oxide? That clear >fluid? >Hmm, I don't think so... > I don't think any technical person would ever recommend such maintainance! I know a few who have... Think about it for a bit. Why is water dangerous? Well... I'm no expert, but I do know a few people here who are... the chips and components of the computer usually use voltages in the order of 5 volts. Around the circut boards are several lines around 12 volts, and some even higher. Shorting a 12 (or more) volt line onto a pin that's expecting 5 volts will usually cause severe damage... Dumping water (especially tap water from cities...) will short the lines. But if the power is off, there's no voltage anywhere (Or, very little), so damage can't occur. As long as you give the circut enough time to dry, no harm is done. The boards themselves don't mind the water in the slightest. Trust me. I've done it quite a few times. (Note that the water might cause rust, which is another problem...) >We could take this discussion over sci.electronics (which I do read) if anyone >wants to pursue this. I would have,but I don't read that group. >Chris -dragon@rpi.edu
MQUINN@UTCVM.BITNET (05/08/91)
n @BLOOM-BEACON.MIT.EDU> On Mon, 6 May 91 20:59:26 GMT Dragon said: > (Note that the water might cause rust, which is another problem...) Isn't that reason enough not to do it? You oughta get something like "Blue Shower" electronics spray, made, specifically, for that. >>Chris > -dragon@rpi.edu ---------------------------------------- BITNET-- mquinn@utcvm <------------send files here pro-line-- mquinn@pro-gsplus.cts.com
whitewolf@gnh-starport.cts.com (Tae Song) (05/09/91)
|People, PEOPLE, get with the program!!! | |Motherboards & keyboards in WATER? H2O? Di-hydrogen oxide? That clear |fluid? | |Hmm, I don't think so... | |Circuit boards (which includes motherboards and the circuit board in a |keyboard and lots of other boards) are, well, they're not plastic. I'm no |expert on circuit board composition, but older circiut boards behave like |paper, ie they will absorb water, etc. Newer circuit boards are less |suseptible to this, but they can still absorb water. Don't forget that |water also contains clorine and other chemicals that can do nasty things |to circuit boards and edge connectors. Also don't forget that chips are |NOT guaranteed to be waterproof and, well, water could get stuck in a chip. | |OK, ok, I don't want to start an argument and waste lots of bandwidth and |some of the things I've said here may not be 100% accuracte, HOWEVER |bathing circuit boards, keyboards, and other electronic components has never |been an accepted practice. I don't think any technical person would ever |recommend such maintainance! | |We could take this discussion over sci.electronics (which I do read) if anyone |wants to pursue this. | |Chris >SIGH< Look, if the circuit board can absorb water, why not other kind of liquids that you spill on it. Whatever clorine and other "nasty" things in the water may do to the ciruit board, think of what the goop is doing. Water is not a very good conductor, even with the impurities that it does contain, where as the goop which you've spilt on your keyboard will short-ciruit it or cause it to not function correctly. Soda is a much better conductor relative to tap water. Worse comes to worse, you do destroy the keyboard... you get a new, which would've been inevitable. If you've spilled it on a mother board it will most likely not work... this has happen to me once when I was younger... I eventually got a GS, and donated the IIe to a BBS. The sysop was able toget it repaired, by getting the "goop" off and replacing couple ROM chips. I do consider myself a tech person... I'm current finishing up a DC circuit analysis class... I do repairs for friends and relatives... and I'm planning it as a career. I think some people on the net may even vouch for me. I'd gladly take it over to the sci.electronics, but I only have access to the this section... I'm calling from a local BBS with some limited access to the net. INET: whitewolf@gnh-starport.cts.com UUCP: crash!gnh-starport!whitewolf ARPA: crash!gnh-starport!whitewolf@nosc.mil
tnab0@isuvax.iastate.edu (ALLAN) (05/10/91)
In article <m0jb82f-0000BlC@jartel.info.com>, whitewolf@gnh-starport.cts.com (Tae Song) writes: >|People, PEOPLE, get with the program!!! >| >|Motherboards & keyboards in WATER? H2O? Di-hydrogen oxide? That clear >|fluid? >| >|Hmm, I don't think so... >| >|Circuit boards (which includes motherboards and the circuit board in a >|keyboard and lots of other boards) are, well, they're not plastic. I'm no >|expert on circuit board composition, but older circiut boards behave like >|paper, ie they will absorb water, etc. Newer circuit boards are less >|suseptible to this, but they can still absorb water. Don't forget that >|water also contains clorine and other chemicals that can do nasty things >|to circuit boards and edge connectors. Also don't forget that chips are >|NOT guaranteed to be waterproof and, well, water could get stuck in a chip. Just a comment: My stereo was submerged when my house flooded this summer, and all I did was pop it open, hose it off and let it dry for a week - and it was OK. Works perfectly good (except the pots for the volume, etc are a bit "sticky") If it works for a stereo, it should work ok for a computer, I guess. _.___ |Come walk with me through endless time. | This space __/__o__\__ |See what has been and what the future sees. | intention- / _____ \ |Share the wisdom of the old world that has passed, | ally left \__/ \__/ |Step in a life that's yet to be born. | blank M1 Abrams | ---- Slayer | Engineering |"And if I offended you, oh I'm sorry, but maybe you needed to Support, ARDEC | be offended, but here's my apology and one more thing... Rock Island, Il| Fuck you!" ---- Suicidal Tendencies