Hello there. I recently purchased the Retina Macbook Pro Base Model. This is my second replacement-unit after the others had major issues like scratches and dirt under the keyboard. My Problem is, that in cases when there are a lot of fast read/write-actions from/to the SSD, the Macbook emits an electrical noise. Seems to be coming from the upper right area. Please be aware, that i know that an SSD shouldn't emit such a Sound, but it actually is directly related to it as you can see in the Video below. The best way to repdroduce the noise is by downloading or copying large files (depending on the transferspeed) from another partition or (better) by opening a folder containing a large mkv(/mp4)-file. For the former, you need to have perian installed. I can not recreate the sound by copying files from an external harddrive. The process directly related to the Sound is QTKITServer....QuickLookSatellite-general I would be very thankful, if anyone of you can try to reproduce this noise. I want to know if i should again order a replacement unit or give up, because its a general problem, as all other units i got also had this problem. Video + Audio: http://www.youtube.com/watch?v=AP6xu5rnHlU&feature=player_embedded Only Audio: http://soundcloud.com/petevigas/rmbp-noise Greetings maj3stro Note 1: I can reproduce the Sound by using Blackmagic Disk Speed Test Note 2: I can also reproduce the sound behaviour on my ssd equipped old Macbook Pro Late 08 with a Corsair p128 SSD. But instead from the upper right corner as on my retina mac, the noise comes from the upper left corner where the dc-in is.