New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Switcher Hangout The place for switchers to discuss their new machines, and how to work with OS X. General support can be had here for newbie stuff, like "How do I restart my new iMac?" :)

does turning my mac off from the mains damage it?


Post Reply New Thread Subscribe

 
Thread Tools
Tobybecker

 
Member Since: Feb 06, 2011
Posts: 1
Tobybecker is on a distinguished road

Tobybecker is offline
So, i got my new imac! (horray) its about 4 weeks old and i love it! anyway, today, i accidently turned it off from the mains! eeek! luckily, i was only on the user select thing but im still rather nervous about it since my last computer, a pc, had its motherboard fried when the plug or whatever fused..so, could me turning my mac off from mains damage it in anyway? thanks!
QUOTE Thanks
louishen

 
louishen's Avatar
 
Member Since: Oct 22, 2007
Location: London
Posts: 8,930
louishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant future
Mac Specs: Mac Mini Core i7 2012 | White 2009 MacBook 2 Ghz | 733 Mhz G4 Quicksilver

louishen is offline
shouldn't do any real harm, just like if the fuse on your house's main box goes, as long as the house's wiring isn't ancient there should be no spikes

Member of the Month September 2008 & August 2012 | Found advice useful? use the rep system
QUOTE Thanks
chas_m

 
chas_m's Avatar
 
Member Since: Jan 22, 2010
Location: Victoria, BC
Posts: 16,191
chas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond repute
Mac Specs: 2009 MBP, Black speakers, Black Benq second monitor, black(ish) iPhone 5s, Black 2012 iPad, etc.

chas_m is offline
Depends. If the Mac was in the middle of doing something (and it almost always is, even processes you don't actively know about), then sudden shutoffs can damage the directory, which can lead to a loss of data. The hard drive's heads also didn't get a chance to park themselves properly, so if the machine were mishandled immediately after that might also (conceivably) do some damage.

Bottom line: most of the time when this sort of thing happens you'll be fine, but there's always some risk. A UPS or other battery-based backup is a good idea to prevent it (and for other reasons).
QUOTE Thanks
harryb2448

 
harryb2448's Avatar
 
Member Since: Nov 28, 2007
Location: Nambucca Heads Australia
Posts: 16,851
harryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond repute
Mac Specs: iMac i5 2.7GHz OS X.9.4

harryb2448 is offline
Agree with chas.

Unwise practice that can cause corruption of the system software. Once under OS 9 and earlier if this happened, on reboot user would get message advising shut down was incorrec and how to go about using shut down from the Menu Bar.

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
QUOTE Thanks
ClockworkWorld

 
ClockworkWorld's Avatar
 
Member Since: Dec 16, 2010
Posts: 240
ClockworkWorld has a spectacular aura about

ClockworkWorld is offline
Quote:
Originally Posted by chas_m View Post
Bottom line: most of the time when this sort of thing happens you'll be fine, but there's always some risk. A UPS or other battery-based backup is a good idea to prevent it (and for other reasons).
I highly recommend a battery backup for anyone with an iMac. (Or any other desktop for that matter... ) Power went out once when I was nearly done with some stuff for work that had taken me nearly 5 hours to do. I had to start all over again because even though I had saved before that point, it somehow wouldn't open my saved work after the power had come back, said it was corrupted. Bought a battery backup that night before going on. Ours lasts only 15 minutes. But that's 15 minutes after the power fails that we have to save what we were doing and shut it down right!

Late 2010 iMac 27 inch  2.93GHz i7 16GB RAM 2TB HDD
2011 Macbook Pro 17 inch Glossy  2.3GHz Quad-core i7 8GB RAM 750GB HDD
QUOTE Thanks
harryb2448

 
harryb2448's Avatar
 
Member Since: Nov 28, 2007
Location: Nambucca Heads Australia
Posts: 16,851
harryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond reputeharryb2448 has a reputation beyond repute
Mac Specs: iMac i5 2.7GHz OS X.9.4

harryb2448 is offline
Problems with battery backups is how infrequently mains power fails when on the computer. Personally has happened to me only once in over twenty years and lost no data thank goodness!

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
QUOTE Thanks
ClockworkWorld

 
ClockworkWorld's Avatar
 
Member Since: Dec 16, 2010
Posts: 240
ClockworkWorld has a spectacular aura about

ClockworkWorld is offline
True!! It's not common at all! But... losing that much work in one split second, made it very much worth it to me, even if it never happens again! Words can't describe how furious I was at that situation

(Edit: It also made me an absolute nut about how often I back up my files )

Late 2010 iMac 27 inch  2.93GHz i7 16GB RAM 2TB HDD
2011 Macbook Pro 17 inch Glossy  2.3GHz Quad-core i7 8GB RAM 750GB HDD
QUOTE Thanks

Post Reply New Thread Subscribe


« Help with folder sorting | Why no Tutorials? »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
Running Windows on a Mac: A Switcher's Guide cwa107 Running Windows (or anything else) on your Mac 283 03-13-2014 04:15 PM
Who's got the most Macs? narf1899 Schweb's Lounge 139 11-24-2012 10:53 AM
Best Mac Racing Sim to Date theanimaster OS X - Apps and Games 3 07-17-2008 08:09 PM
Mac Users Get More ISP Choices schweb Apple Rumors and Reports 1 03-06-2003 10:57 AM

All times are GMT -4. The time now is 03:19 AM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?