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<blockquote data-quote="pigoo3" data-source="post: 1404840" data-attributes="member: 56379">I'm only guessing here...but it sounds like you're thinking that if the logic board is bad that the computer shouldn't be working at all.&nbsp; This is not the case. Something can be damaged on a logic board that only effects something small (where the computer may partially work)...or could effect something major (where nothing works).Laptop computers really aren't as complex from a repair standpoint as you might think.&nbsp; The major parts are:- the display- the optical drive- the hard drive- the top case (where the keyboard &amp; trackpad are located)- the logic board- the batteryThese are the things that a repair professional will look at...and determine what is working &amp; what isn't.&nbsp; And if something is not working properly...then that is the part that is replaced.&nbsp; It sounds like the repair person you visited with says that the logic board is faulty...and we have to believe/trust that was the correct diagnosis.If you look at the list of parts I made above...it's pretty easy to cross most of them off the list as the source of the problem...other than the logic board &amp; the topcase.&nbsp; With just these two parts left...the repair professional did their examination...and it sounds like they determined the problem to be the logic board.Replacement logic boards are very expensive...and whether the damage is very small or very large...the price is the same.&nbsp; Logic boards are not repairable...they are replaceable (swapped out, good parts for bad parts).&nbsp; Unfortunately accidents happen.&nbsp; Laptop computers can be very fragile devices...they are not built to be dropped.- Nick</blockquote>

[QUOTE="pigoo3, post: 1404840, member: 56379"] I'm only guessing here...but it sounds like you're thinking that if the logic board is bad that the computer shouldn't be working at all. This is not the case. Something can be damaged on a logic board that only effects something small (where the computer may partially work)...or could effect something major (where nothing works). Laptop computers really aren't as complex from a repair standpoint as you might think. The major parts are: - the display - the optical drive - the hard drive - the top case (where the keyboard & trackpad are located) - the logic board - the battery These are the things that a repair professional will look at...and determine what is working & what isn't. And if something is not working properly...then that is the part that is replaced. It sounds like the repair person you visited with says that the logic board is faulty...and we have to believe/trust that was the correct diagnosis. If you look at the list of parts I made above...it's pretty easy to cross most of them off the list as the source of the problem...other than the logic board & the topcase. With just these two parts left...the repair professional did their examination...and it sounds like they determined the problem to be the logic board. Replacement logic boards are very expensive...and whether the damage is very small or very large...the price is the same. Logic boards are not repairable...they are replaceable (swapped out, good parts for bad parts). Unfortunately accidents happen. Laptop computers can be very fragile devices...they are not built to be dropped. - Nick [/QUOTE]

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