1 Pixel density: Pixel density-The pixel density of a display represents the number of pixels over an area of one inch. 2  Itâs measured in âpixels per inchâ, or ppi.
Eustachian Tube Dysfunction can be caused by large adenoids, allergies, or a cold. This dysfunction can cause crackling or popping noises in our ears. The tube is lined with moist mucosa, and inflamed Eustachian tubes often get sticky, which causes the crackling and popping noises when the tubes are moving around. If the inflammation is serious, it can be easily treated with steroid nasal sprays.
May 1, 2014 8:47:09 PM. Hey guys, so my computer was making loud crackling noises yesterday, it sounded like something was getting knocked around the fan. So I unscrewed my fan, heat sink, and liquid cpu cooler and dusted everything I could with a duster can. I'm still not really sure what the crackling noise what, but it's stopped since then. There was a lot of dust between the coppor colored thing of the liquid cooler and the CPU, so I brushed all that dust off. But now everytime after maybe 4 minutes into playing Dark Souls 2 my computer shuts off silently, and it immediately shuts down when I try to turn it back on afterwards.