Please help! Just bought today, brand new mac pro 8 core 2.8ghz. I get a weird click on both boot and start up or when I put the computer to sleep or wake it. It's a single click, imagine the sound of someone lightly flicking the side of an empty Pepsi can. It's not random, I can make it do the sound simply by unplugging or re-plugging the power cord in the back. Is this normal?! Would anyone mind unplugging their mac and seeing if you hear a similar sound please?
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New Mac Pro, weird clicking sound, please help
- Thread starter AdiosVista
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It's normal when plugging or unplugging the PSU. I get it sometimes when waking up my G5, but not when booting up.
Don't panic.The sound is from the relays in the PSU, and is normal.
Just to double check, are you saying it's normal to hear this noise even when booting/shut down and sleep/wake?
Yes, AFIAK.
From a previous thread, it seemed Apple had changed OEM suppliers for the PSU.
It would also make sense that the design is also different. The clicks are likely the switching on/off of voltage sources as they are needed or not. You hit the power switch/wake, it causes certain rails to go on, and off when shutting down/sleep.
This would be in order with your description of a single click during each event. If it's a rapid/repetitive clicking, that would be another story.
Hope this makes sense.
Yes, AFIAK.
From a previous thread, it seemed Apple had changed OEM suppliers for the PSU.
It would also make sense that the design is also different. The clicks are likely the switching on/off of voltage sources as they are needed or not. You hit the power switch/wake, it causes certain rails to go on, and off when shutting down/sleep.
This would be in order with your description of a single click during each event. If it's a rapid/repetitive clicking, that would be another story.
Hope this makes sense.
Makes perfect sense, thank you very much!
Mac Pro Click on Wake
I've experienced the same thing: single click at the very moment I tap the space bar or mouse to wake up the computer.
I've experienced the same thing: single click at the very moment I tap the space bar or mouse to wake up the computer.