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Thread: Need help on my winter player!

  1. #1
    Newbie Tech^Cellfish's Avatar
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    Post Need help on my winter player!

    Hi! I live in Norway and have just turned 18. Did manage to buy myself a cheap car and have got the drivers license too. The car is a Nissan Cherry '86. As some of you might know the temperatures can get pretty low here. At least -20'C sometimes. On my MP3Car project I have therefore insulated my computer.

    I do need help on the following subjects:

    Where may I buy a cheap (<50$) keypad ?
    Someone has winter experiences with their computers ?
    What about condensation problems?
    What about heat-problems when utilizing unsulation material ?

    I would be grateful for any help!
    Car: 1995 Saab 900S 2.0 ,Sapphire GPS ,Mini-Mag WiFi antenna
    HU: Pioneer DEH-P7100R AMP: XM-4060GTX Sub: XS-L121P5
    Old car that got stolen: 1984 Nissan Cherry (Pulsar), PII-400,64MB Ram,35GB HD,Keypad,CF 634 Display

  2. #2
    Live and Kickin'
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    Post

    Ccomputers like the cold! You don't need to insulate it

  3. #3
    FLAC
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    If you search around, you will see that some members have used their comps in -40C weather without problems

  4. #4
    Variable Bitrate
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    The truth is that that computers like the cold but not their drives. Hard disks, cdroms and floppys are electromechanical components that have moving-lubricated parts and are notoriously unreliable in extreme cold. Last winter when I was in a ski resort I turned on my laptop (I've left it all night in the parked car) and it couldn't boot. The drive was damaged not during the night but when I tried to use it. The repair guy told me that propably the platter hub froze, couldn't spin and blew off the motor.
    If you insulate the computer (or only the drives) you 'll keep them warm for a while but eventually after some hours all the heat will dissipate and you will be where you started (a drive that is turned off does not emmit any heat). Plus you might have an overheating problem during operation of the drive in the insullation (no air circulation). So, the only solution is either to wait for your computer to slowly get warm before you turn it on or use some kind of heater to do it faster. The last does not have to be anything special. A modified hair dryer, a normal PC fan with some heating elements in from of it or a plain light bulb could do the job. If you want to make it more sophisticated use a thermostat that will turn on the heaters whenever the temperature drops below a certain point and for as long as it's needed and then restore the power to the computer's power supply.
    The only thing you don't have to care about is condensation. Condensation appears on cold objects when you take them indoors mainly because the air in a warm room has a very high concentration of water vapours (thay are exhaled when we breathe). If you have the computer in your trunk then no vapour= no concentration (unless you put your dog in the trunk :-) )

    Dimitris

  5. #5
    Newbie Tech^Cellfish's Avatar
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    Oh, overwhelming response. I know they will work in sub-zero enviroment.

    People who overclock and runs their processor at below zero temperatures must insulate their cpu-socket and surroundings to prevent any condensation problems.

    I have taken care of the ventilation / cooling part. I made a room from the socket and upwards forming a big cube. Then I have a pipe leading out in the front.

    Hum, it would suck *** if I did all this work (I'm half-way done) and there isn't any good. I sort of had this idea of a 20'C cold puter suddenly getting 60'C (atleast CPU) and water-drops(?) forming inside (like on the inside of the car windows). When I have insulated the PCB boards as good as I have done (like the overclockers do) it will not be possible.
    Car: 1995 Saab 900S 2.0 ,Sapphire GPS ,Mini-Mag WiFi antenna
    HU: Pioneer DEH-P7100R AMP: XM-4060GTX Sub: XS-L121P5
    Old car that got stolen: 1984 Nissan Cherry (Pulsar), PII-400,64MB Ram,35GB HD,Keypad,CF 634 Display

  6. #6
    mpt
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    One idea is to put the computer in a special bag, remove all the air (humidity) to create a vacuum inside. This is the way those refrigerated CPU´s can work without a water bath.

    Greetings
    mpt

  7. #7
    Newbie Tech^Cellfish's Avatar
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    I insulated the hardrive. Then I removed the rest of the insulation. Started to configurate the machine yesterday and have mailed about ordering a display today. Hope my machine will be up soon.

    Still looking for a keypad or else I will buy a foldable keyboard. Nice to place in the glove compartment.

    Nice summer weather right know. It'll be a while till I got to see the insulation results.
    Car: 1995 Saab 900S 2.0 ,Sapphire GPS ,Mini-Mag WiFi antenna
    HU: Pioneer DEH-P7100R AMP: XM-4060GTX Sub: XS-L121P5
    Old car that got stolen: 1984 Nissan Cherry (Pulsar), PII-400,64MB Ram,35GB HD,Keypad,CF 634 Display

  8. #8
    Retired Admin Aaron Cake's Avatar
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    Originally posted by mpt:
    <STRONG>One idea is to put the computer in a special bag, remove all the air (humidity) to create a vacuum inside. This is the way those refrigerated CPU´s can work without a water bath.
    Greetings</STRONG>
    Do not do this. Hard drives will not function in a vacuum. The head needs a cushon of air to glide on. If there is no air, it will scrape along the surface of the platter, destroying everything in it's path.

    Anyway, computes function quite well in the cold. I have had no problems with mine in the typical Canadian winters. If you keep the air moving (which your cooling fan will), condensation is not an issue.
    Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
    Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
    "If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

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