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<blockquote data-quote="pigoo3" data-source="post: 1650076" data-attributes="member: 56379">The computer definitely shouldn't startup on its own after being plugged in.&nbsp; Maybe the power button is stuck in the depressed/pushed position, or maybe the contacts in the power button have bridged in some way (melted solder)I don't think that the LCD can get that hot.&nbsp; If it was heat related…it would be the CPU or GPU generating that much heat (or a faulty fan).As far as should it look that way.&nbsp; Try going to ifixit.com.&nbsp; Lots of repair procedures there…with lots of photos (by computer model).&nbsp; Hopefully some of the photos will show the area you're interested in…with enough detail.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />If it needs a new logic board…it will be a borderline call on doing it.&nbsp; Most of the time with Apple computers it's not financially worth replacing the logic board.&nbsp; Just too expensive.&nbsp; A replacement logic board may cost you $500+&nbsp; Current value on a 100% working mid-2011 27&quot; iMac is around $1000.&nbsp; You may be able to get $400-$500 for this iMac on eBay (in it's current condition).&nbsp; Add to that the $500+ for a replacement logic board…and you're back to $1000 or more.&nbsp; So it's almost better to sell what you got (the owner of the computer)…and buy another 100% used working unit.Of course if the computer can be repaired without needing a replacement logic board…that's the way to go.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />- Nick</blockquote>

[QUOTE="pigoo3, post: 1650076, member: 56379"] The computer definitely shouldn't startup on its own after being plugged in. Maybe the power button is stuck in the depressed/pushed position, or maybe the contacts in the power button have bridged in some way (melted solder) I don't think that the LCD can get that hot. If it was heat related…it would be the CPU or GPU generating that much heat (or a faulty fan). As far as should it look that way. Try going to ifixit.com. Lots of repair procedures there…with lots of photos (by computer model). Hopefully some of the photos will show the area you're interested in…with enough detail.:) If it needs a new logic board…it will be a borderline call on doing it. Most of the time with Apple computers it's not financially worth replacing the logic board. Just too expensive. A replacement logic board may cost you $500+ Current value on a 100% working mid-2011 27" iMac is around $1000. You may be able to get $400-$500 for this iMac on eBay (in it's current condition). Add to that the $500+ for a replacement logic board…and you're back to $1000 or more. So it's almost better to sell what you got (the owner of the computer)…and buy another 100% used working unit. Of course if the computer can be repaired without needing a replacement logic board…that's the way to go.:) - Nick [/QUOTE]

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