Buy Combaterwing CW-80 Gaming Mouse Optical USB Wired Programmable 10 Buttons RGB Breathing LED Mice For Windows XP/Vista/Windows 7/Mac OS with fast shipping and top-rated customer service. Newegg shopping upgraded ™. DREVO Seer PRO Mini 61-Key Wired/Wireless Bluetooth 5.1 Mechanical Keyboard, RGB Illumination, Compatible with Windows/Mac OS/Android/iOS Devices, US Layout (Gateron Blue Switch, White) 4.5 out of 5 stars 163.
I know it sounds weird but I can't think of any other way to describe it. For the last couple of days my Mac Pro has been making this weird sound, not too loud, it sounds a bit like a hard drive spinning, in a rhythmical way.
It's almost like it's breathing. It's one of those noises that once you start to hear it you can't not hear it. It's slightly intrusive as well as I do audio work and it can be picked up in the background.
Would anyone have any idea what this might be? I haven't added any new hardware or software in the last few weeks, it's not a CD or DVD spinning in the drive, so I'm struggling to try and figure this out.
Any help much appreciated. Thanks.
It's almost like it's breathing. It's one of those noises that once you start to hear it you can't not hear it. It's slightly intrusive as well as I do audio work and it can be picked up in the background.
Would anyone have any idea what this might be? I haven't added any new hardware or software in the last few weeks, it's not a CD or DVD spinning in the drive, so I'm struggling to try and figure this out.
Any help much appreciated. Thanks.
Mac Pro, Mac OS X (10.5.6)
Posted on Mar 25, 2009 5:07 AM
![Breathing Metal Mac OS Breathing Metal Mac OS](https://cdn11.bigcommerce.com/s-4ojmwwlaxn/images/stencil/1280x1280/products/149124/3611578/51E-jJH2RdL__11914.1607924260.jpg?c=1)
To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.
Learn how to upgrade to macOS Big Sur, the latest version of macOS.
Check compatibility
If a macOS installer can't be used on your Mac, the installer will let you know. For example, it might say that it's too old to be opened on this version of macOS, or that your Mac doesn't have enough free storage space for the installation.
To confirm compatibility before downloading, check the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also find compatibility information on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.
Make a backup
Metal On Mac
Before installing, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Download macOS
![Breathing Metal Mac OS Breathing Metal Mac OS](https://photos5.appleinsider.com/gallery/26588-38070-Metal2-l.jpg)
It takes time to download and install macOS, so make sure that you're plugged into AC power and have a reliable internet connection.
Non Metal Mac Os Machine
Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.
- macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
- macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
- macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [Version Name]. Open that app from your Applications folder to begin installing the operating system.
- macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
- OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
- OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard
Install macOS
Two buttons left mac os. Follow the onscreen instructions in the installer. It might be easiest to begin installation in the evening so that it can complete overnight, if needed.
Non Metal Mac Os
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs macOS and related firmware updates.
Breathing Metal Mac Os Download
Learn more
Breathing Metal Mac Os X
You might also be able to use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.