Thank you for all the nice videos Chris you are making for the community. I follow them all.
I know that SSDs never make any noise since they do not have any moving parts in them. Out of curiosity I put my ear to the right hand rest of my Macbook Pro where my 128GB Kingston SSD is. To my surprise I heard some whining and screeching noise while accessing the disk. The moment I move my ear like a cm above the hand rest I can not hear it any more so it is very faint noise.
I was wondering though about this noise as I know that only power supplies or circuitry with coils (inductors/transformers) can produce this while resonating at high frequencies while not having any moving parts.. So I would appreciate it greatly if you can answer my enquiry even if it is slightly insignificant.
Many many thanks
Answer by Razor512 · Oct 20, 2011 at 12:46 AM
some components, eg chokes and capacitors can make some noise while used, especially if there is line ripple which falls out of the designed tolerance range.
I have not experienced this on a SSD but have noticed it on routers, cheap AC adapters, videocards, and some flash lights with have regulator circuits which can keep the voltage more constant.
It is not just power supplies with power management circuitry, but also devices such as mice, CD drives, phones and many others will have something to manage the power and just about all of them have components capable of making noise
eg a component I tested in plans of making a USB charger with support for multiple battery types. (takes in a wide range of voltages and allows you to output a specific voltage, and some batteries such as a 12V battery designed for a drivable lawnmower)
Answer by roguekiller23231 · Oct 20, 2011 at 03:00 PM
they can make sound, when i silenced my PC, my RAM makes a similar sound as you described, like a squealing or sound like a cricket chirping.
if there is anything else in the case that makes a sound like the fans, the squealing sound of hardware is usually drowned out.
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