Removing the iMac Flat Panel display - and using VGA out

Hey all,

There used to be a topic about this, but it has since been archived, so I'm opening a new one.

Now, Here's what I'd like to do:

I have an iMac 800 G4, and I love the machine. It's still plenty fast for all of my needs. I would like to upgrade to the new iMac, but until Photoshop and the bunch are intel native, that's a no go. Anyway, the main reason I wanted to upgrade was for the resolution. Since spanning is out on my model, and the vga out port only mirrors up to the built in display resolution, my only choice is to upgrade.

I did some searching around, and discovered that someone (the originator of the old thread) had managed to remove the display and had gotten the vga out to support any resolution a connected monitor could support. The logic is that once the built in display is disconnected, the limitation for mirroring resolution is removed. Now, I don't need airport, so I could remove the screen without losing any functionality.

I just want to know a few things. First off - I don't want to take the computer apart - just remove the screen. That means that I'd still be left with the neck. This does't bother me, I just want to know if removing the display and "cutting the cords" will be enough to make the computer think that the monitor is gone, so I can use a higher resolution through the vga out port. Also, I want to know if this is safe - will just severing the cords (and covering them with electrical tape of course) harm the operation of the machine in any way?

Also, by severing the display and using vga out, will the external monitor essentially function as the only display? Meaning, will I ever have any issues with booting up where the computer might not find the monitor?

Thank you so much for any assistance you can provide - this would be a great go between while I wait for Adobe and friends to release the new apps.

iMac Flat Panel 800, Mac OS X (10.4.5)

Posted on Mar 2, 2006 10:41 AM

Reply
7 replies

Mar 2, 2006 1:57 PM in response to Webman

Maybe you could call an Apple store about this... I doubt that too many people have done this. While I suppose you could just hack it off, it would probably be better to disassemble it. If you take apart the monitor (screws under where iMac is written) you may be able to save the wire and even use it for hooking up to a different monitor.

Good luck and let us know how you make out...

Mar 2, 2006 2:04 PM in response to Androcles

Let me clarify - I do mean I would disassemble the monitor carefully. The problem is I have to leave the neck on unless I take apart the actual machine, which I don't want to do. those innards, with the heat paste and everything, I don't want to mess with. But I can easily take apart the monitor down to the neck.

the person that did this before actually took apart the compyuter entirely and removed the neck. I'm wondering if you have to go that deep to truly sever the monitor connection, or if cutting the connection above the neck will suffice.

Mar 2, 2006 5:44 PM in response to Webman

If you take apart the screen, there is a small plug on the monitor. You would just have to unplug it and then take the screen off. You would still be left with the arm. If you can't live with that, then you could either hack it off or disassemble. I've opened my iMac up several times and the heat paste isn't a really big deal. Unfortunately, you would have to take the entire innards out to get at the arm... This site has some excellent guides. Just find your model and have a look. http://www.whoopis.com/computer_repair/ (you have to scroll down a bit).

Mar 3, 2006 1:27 PM in response to Androcles

Here's a potentially risky firmware fix - I've not done this yet. Screen Spanning Doctor removes the mirroring limitation.

Don't use it if you only have a 15" iMac.


I would seriously suggest just hacking the screen off if not good - there'll be loose cables - unterminated wires - etc.. Disassemble... maybe that will work. Follow Androcles' link above to Apple's iMac G4 service manual. Restoring thermal paste really isn't that difficult.

regards

mrtotes

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Removing the iMac Flat Panel display - and using VGA out

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