I also had a similar issue a while ago - testing the open iMac in front of me, the technician showed me the PSU making that "frying coil sound", especially when under heavy load. I changed it for 200 bucks and all is fine now.
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2012 27" iMac making a electrical buzzing voltage noise
- Thread starter PavelT
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I also had a similar issue a while ago - testing the open iMac in front of me, the technician showed me the PSU making that "frying coil sound", especially when under heavy load. I changed it for 200 bucks and all is fine now.
I also had a similar issue a while ago - testing the open iMac in front of me, the technician showed me the PSU making that "frying coil sound", especially when under heavy load. I changed it for 200 bucks and all is fine now.
interesting. so apple came to your house and fixed it and billed you?
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Well it's clearly PSU-related. I can't imagine replacing the iMac would solve the issue, but you never know...
Where are you located?
los angeles.
interesting. so apple came to your house and fixed it and billed you?
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los angeles.
My recommendation is to take it to a friend's house. It's really easy to put the iMac in the box, so just do that, bring it over to a bud's house, and make sure it's not something in your house. Honestly, if it does it at certain times of the day it's unquestionably a power-in-your-house/area issue. Now whether it's the iMac being sensitive to it or symptomatic of a bigger problem - I don't know. But now you know the issue, the question is what to do to address it.
Well it's clearly PSU-related. I can't imagine replacing the iMac would solve the issue, but you never know...
Where are you located?
The reason the "not-so-geniuses" couldn't reproduce the issue is because it isn't a problem with the computer. And that box you've bought won't work - you're going to need a decent UPS and/or noise filter. You won't get that for $40.
The reason the "not-so-geniuses" couldn't reproduce the issue is because it isn't a problem with the computer. And that box you've bought won't work - you're going to need a decent UPS and/or noise filter. You won't get that for $40.
Agreed. I really think it's a house-power issue.
The reason the "not-so-geniuses" couldn't reproduce the issue is because it isn't a problem with the computer. And that box you've bought won't work - you're going to need a decent UPS and/or noise filter. You won't get that for $40.
i see. but couldnt it be the imac internals being too sensative? or a coiling problem with its psu?
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Agreed. I really think it's a house-power issue.
i dont have the box anymore, it was so huge. but i will try to lug this thing over to a friends house to check it soon..
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