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hadees
Stray Dog


Joined: 05 Feb 2003
Posts: 65

Post Posted: Tue May 03, 2005 8:31 am   Post subject: My Fridge, Magnets and Computers Reply with quote Back to top  

Hey so i got this idea for a cool computer i want to build that would go on my Fridge. The idea is it would run Linux and MythTV.

So far the only parts I have found for it is an Open-Frame LCD Touchscreen Monitor.

I still need to find a good motherboard and a power source. I was thinking that I would just use a standard ATX motherboard with onboard video. This would then make it so I don't need a video card sticking up at 90 degrees. But that still leaves a power souce and they are usally huge. So if anyone has any ideas on this front I am kind of up in the air right now about the powersouce. I also need an elegant way of running the power cord.

Another problem I face is I was thinking of adding additional pci cards. Now these would normally need to sit at 90 degrees which wouldn't work. Does anyone know of an extender for pci, like a wire or adapter that would let a pci card sit parallel to the motherboard? One idea that I would like to explore is getting a rfid hooked up to this computer and marking my food with rfid tags to track expiration and ingredients. I was thinking there must be a pci rfid reader out there.

I know hacking a laptop might be the best solution but is there any instructions on this? I really need to have a touch screen. I guess another solution would be to just use a tablet PC.

And the final problem I am going to face is the magnets. Now I invision this computer sticking onto my fridge. So the problem I face is first getting strong enough magnets to hold it on the fridge and shielding the computer from these magnets. Anyone have any ideas on this?

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quijbe
Leg Humper
Leg Humper


Joined: 16 Jan 2002
Posts: 5526

Post Posted: Tue May 03, 2005 11:09 am   Post subject: Reply with quote Back to top  

dont worry about the magents, these are fine around computers without CRT monitors (like n LCD touchscreen) and strong as hell

Maybe one of them via C3 ITX mainboards woudl suit ya:
http://www.viavpsd.com/product/epia_m_spec.jsp?motherboardId=81

This one has LVDS output so you can attach a laptop LCD screen to it.
http://shop.store.yahoo.com/directron/epiame6000l.html

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madcow3417
Stray Dog


Joined: 02 Mar 2005
Posts: 3

Post Posted: Tue May 03, 2005 10:38 pm   Post subject: Reply with quote Back to top  

Don't bother with the magnets, you'll screw up your hard drive. You may also drop the computer accidentally if it's up there with a magnet. The only way I can think of is screws. I'd mount the screen to one side of a piece of plywood and everything else to the other side. I am unfamiliar with LVDS, but to the best of my knowledge laptops displays need a controller card specific to that model of display. Those typically cost a couple hundred dollars, and are a wiring mess. I like the display you already found.

To run a PVR you probably need a decently fast processor. I haven't used an EPIA motherboard so you might want to check specs to see if they can keep up, or if that program will even work on their non-Intel/AMD processor. If it doesn't keep up you may want to try a standard micro-ATX motherboard, my pick would be a soyo SY-P4RC350 with an integrated ATI Radeon 9100 Pro video card with VGA, S-video, and composite TV output (in case you went with an LCD TV instead.)

You're looking for a pci riser card so the pci card doesn't stick out. You can get them for multiple slots if you need more than one ad-on card. I haven't used one so I don't know what kind or where to get it, just google it. I used a microATX power supply for my last project, it was much smaller than a standard one. This is the best one I could find, an Enermax:
http://www2.newegg.com/Product/Product.asp?Item=N82E16817103453
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quijbe
Leg Humper
Leg Humper


Joined: 16 Jan 2002
Posts: 5526

Post Posted: Wed May 04, 2005 3:57 am   Post subject: Reply with quote Back to top  

You insult me.
All Hard Drives have very powerful magnets in them. You have to have a serious, and we are talking serious magnet to affect a hard drive from outside it's enclosure. Read this, get informed.

Guess what those controller cards are that power laptop LCDs? LVDS controllers ?

appreciate the input on the PSU though.
The possibility of dropping it while securing or removing from the fridge was a good thing to point out too.

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