Hey everyone. Sorry, I posted this question in another thread but wasn't getting a response. I just received my new i7 and it has the high pitched noise when you adjust brightness. It seems like whenever I hear about problems, its with the i7, but maybe thats just coincidental. However, it the i5 does seem less problem prone, I would like to know because I'll just order it instead of a new i7 when i return this one. Thanks.
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Is the i5 less problem prone than the i7?
- Thread starter eddvedd
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Don't give up so quickly. Exchange it for another. Your money entitles you to a fault-free machine, and Apple knows this.
Yeah, I didn't mention it in this thread, but this will be my 5th iMac. I purchased four of the previous i7's and all four went south (2HD's, 1 power source, and 1 DOA). Your right though, I'll give the i7 one more chance, since this is the new version, and perhaps the problems arnt as common (maybe I shouldn't say common, but I think you know what I mean)
Not at all authoritative, but an educated guess: seriously doubtful. It's the same screen, and since changing the backlight is what does it, it's almost certainly the LED drive circuitry. I wouldn't expect that to be different between the two.
In my (limited) experience this usually comes down to a poorly secured component somewhere that vibrates and creates a resonant hum or buzz, depending on whether it's touching something else. Exactly what brightness this occurs at depends on the voltage that causes the resonating, how the component's secured, etc.
In my (limited) experience this usually comes down to a poorly secured component somewhere that vibrates and creates a resonant hum or buzz, depending on whether it's touching something else. Exactly what brightness this occurs at depends on the voltage that causes the resonating, how the component's secured, etc.