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Abbreviations Used in This Manual When a ScanSnap model is referred to in this manual, 'Color Image Scanner ScanSnap' is omitted. Also, the following abbreviations are used in this manual. Abbreviation Used Designation Mac OS macOS High Sierra v10.13 macOS Sierra v10.12 OS X El Capitan v10.11 Word Microsoft ® Word 2016 for Mac Microsoft. The Apple category of Mac OS X Downloads.
To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your Mac, or immediately after your Mac begins to restart. Keep holding until the described behavior occurs.
If your Mac is using a firmware password, all of these key combinations are disabled, except as noted below.
Command (⌘)-R: Start up from the built-in macOS Recovery system. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet. macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up. If your Mac is using a firmware password, you're asked to enter the password.
Option (⌥): Start up to Startup Manager, which allows you to choose other startup disks or volumes, if available. If your Mac is using a firmware password, you're asked to enter the password. Mac mentor touch manual.
2003 power mac g5. Resetting the PMU does not do anything at all.So, now my question is: how do I test the Power Supply unit (pins) I see a lot of testing on different power supply units, but not on a 1000-watts for this Power mac late 2005 model.This model has two molex pins (P1 is 6 pins and P2 is 10 pins).I bought this used power supply (not from here) and I've only have a couple of days left on the warranty, so I just want to check it and make sure if it was faulty to begin with.or maybe I need a logic board.thanksAlexO. I tested the back up battery, still gives more than 3.5 v. Logic board diagnostics lights are not on. Well.I get nothing! All I hear is a couple of clicks (very minimal in noise) but that is only when I plug the power cord to the mac.pressing the power on button does not turn anything at all.
Option-Command-P-R:Reset NVRAM or PRAM. If your Mac is using a firmware password, it ignores this key combination or starts up from macOS Recovery.
Shift (⇧): Start up in safe mode.
D: Start up from the built-in Apple Hardware Test or Apple Diagnostics utility, depending on your Mac model. Or use Option-Dto start up from this utility over the Internet.
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N: Start up from a NetBoot server, if your Mac supports network startup volumes. To use the default boot image on the server, hold down Option-N instead.
Command-S: Start up in single-user mode. This key combination requires macOS High Sierra or earlier.
T: Start up in target disk mode.
Command-V: Start up in verbose mode.
Eject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc.
Mac Os R Manual 2017
Learn more
- Learn what to do if your Mac doesn't turn on.
- Learn about Mac keyboard shortcuts that you can use after your Mac has started up.