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<blockquote data-quote="pigoo3" data-source="post: 1824040" data-attributes="member: 56379">I only mentioned the &quot;Mac Pro's speaker&quot; since I didn't 100% know if you had external speakers connected.&nbsp; My point was...could the snapping/popping noise be coming thru whatever speaker is being used by your Mac Pro...due to some sort of electrical surge/noise on the home wiring.&nbsp; Sounds like you're saying no.I wouldn't fool around with the computers cooling system.&nbsp; Finding out the source of the snapping/popping isn't worth possibly damaging the computer (bad return on investment).&nbsp; I would stick to more traditional &amp; creative ways to try to troubleshoot &amp; isolate things.&nbsp; I think disconnecting everything external is a great start...and personally I would pay close attention to the power supply area for the snapping/popping sounds.&nbsp; But of course trying to more closely isolate where the popping/snapping is coming from is the most important...since that will allow to to focus much more on a specific area of the computer...and only consider the parts in that area that might be making the sound.I don't know where you have your Mac Pro located.&nbsp; But if it's on the floor next to you...might be better to place it on your desktop...or on a chair or table right next to you (same height)...so when the sound happens...when you hear it...you can better determine what part of the Mac Pro case the sound is coming from.- Nick</blockquote>

[QUOTE="pigoo3, post: 1824040, member: 56379"] I only mentioned the "Mac Pro's speaker" since I didn't 100% know if you had external speakers connected. My point was...could the snapping/popping noise be coming thru whatever speaker is being used by your Mac Pro...due to some sort of electrical surge/noise on the home wiring. Sounds like you're saying no. I wouldn't fool around with the computers cooling system. Finding out the source of the snapping/popping isn't worth possibly damaging the computer (bad return on investment). I would stick to more traditional & creative ways to try to troubleshoot & isolate things. I think disconnecting everything external is a great start...and personally I would pay close attention to the power supply area for the snapping/popping sounds. But of course trying to more closely isolate where the popping/snapping is coming from is the most important...since that will allow to to focus much more on a specific area of the computer...and only consider the parts in that area that might be making the sound. I don't know where you have your Mac Pro located. But if it's on the floor next to you...might be better to place it on your desktop...or on a chair or table right next to you (same height)...so when the sound happens...when you hear it...you can better determine what part of the Mac Pro case the sound is coming from. - Nick [/QUOTE]

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