![]() ![]() With a 42MB Sony my files really got huge, and that's when I realized I needed to keep at least 100GB free - it's running fast although still not as well as it could. I worry that it is past its prime and just keep it lean - I was filling up most of the 500GB hard drive with photos all the time and now am making sure most of my photos get reviewed and then I offload them to an external hard drive and process them on my iMac. ![]() I have an Intel MacBook Pro Retina 13" late 2013. ![]() I usually just shut down what I'm not using and put it to sleep for a bit and it seems to stop. I got an external fan that attaches to the USB port but it's noisy itself. I brought it to Apple years ago and they said they just run hot. It will go on for a bit and then stop and it's back to normal. My MacBook goes through stages where the fan runs really hard and loud for no apparent reason. The most expensive parts are the logic board and display. The LCD is held on with VHB (very high bond) strips. Attached to the logic board is the airport/BT card, and a flash storage SSD used with the fusion drive option. Internally your iMac only has a power supply, hard drive, logic board, speakers on each side and fan. Apple will not charge to run diagnostics, usually an AASP will. This is used in Apple Stores, Apple Authorised Service Providers and some self servicing university IT depts. This is Apple proprietary and runs from a netboot server. The only way to detect if there is a sensor problem is to run Apple's MRI diagnostic. When many of the sensors fail the fan will instantly run fast. The other option is if a sensor has failed. I've only ever seen one fail running flat out, and a few noisy ones. It has a tacho out used to sense and control the fan speed. It's not caused by heat, as the fan runs as soon as the iMac is powered up, before it can warm up.Ī few likely causes. Even when bad it doesn't cause the fan to run flat out. Fluff often collects in the bottom of the tapered case, and the vent holes are small. The only area I've seen with a significant fluff build up is along the bottom edge. With Pro version you get extra features (custom fan presets), priority customer support and confidence in future updates and improvements.The Late 2012 iMac was the first of the thin iMacs that had no optical drive. ![]() Under "Control" click "Custom" and you can then use a slider to change the fan control on your Mac".Launch the app and you will then have access to the fans and be able to see the temperatures of the components inside your Mac.Download and install Macs Fan Control from MacUpdate.Works on all Macs, both Intel & Apple Silicon.Solve noise problems such as those caused by iMac HDD replacement.Solve overheating problems like those found on a MacBook Pro.Real-time monitoring of fan speeds and temperatures.Control fan speed in relation to a temperature sensor (e.g., 3rd party HDD).Set any constant value to any fan (e.g., minimum).Software solution to noise problems such as those caused by iMac HDD replacement, or overheating problems like those found on a MacBook Pro.Macs Fan Control allows you to monitor and control almost any aspect of your computer's fans, with support for controlling fan speed, temperature sensors pane, menu-bar icon, and autostart with system option. ![]()
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