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  1. #1
    Bronze Lounger Drew1903's Avatar
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    Exclamation Don't set PC on carpet

    It has occurred to me that maybe I should mention this...

    Electronics and specifically, PCs do not like static electricity. W/out explaining the science or physics of it here is my point... Often I have gone to clients' homes or offices and discover PCs sitting on carpets. Remember, if you rub a balloon on a carpet it will then stick to a wall? That's static electricity @ work. DO NOT sit PCs directly on carpets. IF, the machine is going to be placed on a carpeted floor put something under it to isolate it from the carpet; a wooden board, newspaper, cardboard, you get the idea.

    And another thing, while I'm @ it... do not remove or replace PC case covers, side panels and such whilst a PC is running. Always do this ONLY after & while the machine is unpowered or shut off.

    Cheers,
    Drew

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  3. The Following 2 Users Say Thank You to Drew1903 For This Useful Post:

    lien (2014-02-08),PamS (2014-01-16)

  4. #2
    Lounger PamS's Avatar
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    I recently got a new Win7 machine and needed to place my WinXP machine on the floor under my desk so I could still have access to it for awhile. As soon as I sat it on the carpet, alarms went off in my head and I went and got several sections of newspaper and placed them under the tower. Thanks for the reminder on this!

    Pam

  5. #3
    Super Moderator BATcher's Avatar
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    Thank heaven that the PC metal cases are earthed via the mains plug (in the UK, at least)!
    BATcher

    If it wasn't for the weather, Great Britain would be a silent nation.

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    Even the plastic ones have a metal shield internally. Seems the manufacturers thought about the static issue during the design phase.

    cheers, Paul

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    I'm reminded every time I pet Friskers (name changed to protect his identity) this time of year; three or four nice jolts between he and I on the first couple of strokes.
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  8. #6
    Silver Lounger mrjimphelps's Avatar
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    Another good idea: DON'T BLOCK THE VENTILATION HOLES ON THE SIDE OF THE COMPUTER! I have seen lots of computers (in offices, not in homes) which are turned on their sides, and the vent holes are on the bottom! Or, they will put paper, etc., next to the computer, blocking the vent holes.

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    I'm skeptical that a desktop sitting on carpet generates static electricity as the desktop doesn't rub the carpet, unlike the balloon example. Comments from anyone who knows their physics?

    Sitting a laptop on a carpet is a good way to fry it as the air intake vents will be blocked. It really happens, I destroyed my first computer this way. :/

  10. #8
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    BBS, you are correct, no static issues from the PC, but you walking up to it and pressing the power button is likely to result in a zap or two. That's why the cases are earthed.

    In Oz using your computer at home on a 40 degree day is likely to kill it, especially if the vents are blocked.

    cheers, Paul

  11. #9
    Bronze Lounger Drew1903's Avatar
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    Quote Originally Posted by mrjimphelps View Post
    Another good idea: DON'T BLOCK THE VENTILATION HOLES ON THE SIDE OF THE COMPUTER! I have seen lots of computers (in offices, not in homes) which are turned on their sides, and the vent holes are on the bottom! Or, they will put paper, etc., next to the computer, blocking the vent holes.
    Oh my, you are a brave soul venturing to discuss common sense. Geeesh, do you know how UNcommon that stuff is?!! I, actually, considered mentioning about unblocked airflow around AND through the case. Guess it was necessary for someone to raise the issue. Maybe there really are people who think the perforations or other openings in the case are just for looks rather than any practical reason. So good it is now mentioned.

    Cheers,
    Drew
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  12. #10
    4 Star Lounger access-mdb's Avatar
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    One problem re computers on carpets is that fluff and dust are more likely to clog vents. I had experience of this at my work where the receptionists had a desktop on the floor. I told them to get it looked at by the SSM people, and they said it was absolutely packed with dust etc and was close to overheating and failing. It was moved after that!

  13. #11
    Bronze Lounger DrWho's Avatar
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    Quote Originally Posted by BATcher View Post
    Thank heaven that the PC metal cases are earthed via the mains plug (in the UK, at least)!
    Yes they ARE! here too. That's pretty much Universal.

    The problem at floor level is not so much static electricity as DIRT.

    The two things that kill most computers is HEAT and DIRT!
    Keep'em cool and clean and most will run forever.

    Even in houses that look like something out of Home Beautiful magazine, I've found PC's loaded up with dirt, and failing because of it.

    Example:


    There is also the problem of the dog using the PC as a Fireplug.

    They are called Desktop PC's for a good reason.....because that's where they were designed to be used....
    on a desktop, not on the floor! PC's do not have air filters on them.....they suck up everything in their immediate vicinity (like a vacuum cleaner) and if that vicinity is a dirty floor,,,,,,, guess what,,,,,,that dirt goes right into the PC. (just like in the picture above. Yes, that PC was on the floor, till it totally failed)

    Even putting a PC on a low stool, box or stand is better than directly on the floor. 18" is usually enough height to keep it out of the Dirt Zone.

    It's always grieved me, to have to tell a customer "I'm sorry, but your PC has died due to overheating, because it's packed with DIRT".

    Cheer mates..... keep'em COOL and keep'em CLEAN and they will last a long time.

    The Doctor
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    3 Star Lounger bassfisher6522's Avatar
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    There is also the problem of the dog using the PC as a Fireplug.
    That's a first....ROFLMAO!

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    I had to think about the term "fireplug" - not being a native of the USA. Lamp post would be the equivalent in my neck of the woods.

    cheers, Paul

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    Re good desktop positioning issues, having it not backed too far into the rear wall is also important, or the efficiency of the rear exhaust fans will be compromised. And I've noticed the exhaust fans cover anything near to them with dust after a time too, I really should vacuum and dust more often, typical bachelor I suppose.

    40+ (Celsius, = 104F) degree days are a challenge, with my airconditioner broken during the recent 41-44 degrees heatwave I had to run my oldest and worst behaved desktop with a case side off, though I've already installed four extra fans (admittedly two are tiny ones stuffed in the otherwise unused floppy bay), and even then I got a number of crashes with random bluescreen messages. It has been at its worst in peak summer for a few years. I think because the capacitors are aged it's less tolerant to heat. Anyway I won't procrastinate getting the air conditioner fixed another year!
    Last edited by bigbadsteve; 2014-01-23 at 11:12.

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    Quote Originally Posted by DrWho View Post
    Yes they ARE! here too. That's pretty much Universal.

    The problem at floor level is not so much static electricity as DIRT.

    The two things that kill most computers is HEAT and DIRT!
    Keep'em cool and clean and most will run forever.

    Even in houses that look like something out of Home Beautiful magazine, I've found PC's loaded up with dirt, and failing because of it.

    Example:


    There is also the problem of the dog using the PC as a Fireplug.

    They are called Desktop PC's for a good reason.....because that's where they were designed to be used....
    on a desktop, not on the floor! PC's do not have air filters on them.....they suck up everything in their immediate vicinity (like a vacuum cleaner) and if that vicinity is a dirty floor,,,,,,, guess what,,,,,,that dirt goes right into the PC. (just like in the picture above. Yes, that PC was on the floor, till it totally failed)

    Even putting a PC on a low stool, box or stand is better than directly on the floor. 18" is usually enough height to keep it out of the Dirt Zone.

    It's always grieved me, to have to tell a customer "I'm sorry, but your PC has died due to overheating, because it's packed with DIRT".

    Cheer mates..... keep'em COOL and keep'em CLEAN and they will last a long time.

    The Doctor
    Cat hair is real good at clogging up the vents too.

    I question putting newspaper under a Desktop PC on carpet though, I would much prefer a piece of timber or a large ceramic tile.
    Some cases have vents and filter screens on the bottom too, I know mine does.

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