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
Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

iMac stuttering and and doing strange things!


Post Reply New Thread Subscribe

 
Thread Tools
speni

 
Member Since: Apr 04, 2010
Posts: 10
speni is on a distinguished road

speni is offline
Recently, my iMac has started to stutter when I'm doing anything, e.g playing a movie file, it starts stuttering, and then the video will stop while the audio continues...

In Logic, it won't play a song, starts OK, then starts stuttering, then comes to a stop.....

In general use, the cursor will not move smoothly, when I move my mouse, it jumps across the screen, missing out all the space between....

When I reboot, it's ok for a few minutes,then starts, and gets gradually worse until I need to reboot again.

It started a few weeks ago, but is gradually getting worse, to the stage where I can't do much on my mac.

iMac 24", 2.4 GHz Intel Core 2 Duo, 4GB 667 DDR2 Ram, 1TB HD.

Also, I've repaired disk permissions, to no avail.

Any advice appreciated please.
QUOTE Thanks
pendlewitch

 
Member Since: Sep 10, 2011
Location: Nelson,UK
Posts: 1,737
pendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of light
Mac Specs: iMac 27" Mid 2010, 3.2GHz Intel Core i3,4GB 1333 MHz DDR3, ATI Radeon HD5670 512MB, Mavericks 10.9.1

pendlewitch is offline
Quote:
Originally Posted by speni View Post
Recently, my iMac has started to stutter when I'm doing anything, e.g playing a movie file, it starts stuttering, and then the video will stop while the audio continues...

In Logic, it won't play a song, starts OK, then starts stuttering, then comes to a stop.....

In general use, the cursor will not move smoothly, when I move my mouse, it jumps across the screen, missing out all the space between....

When I reboot, it's ok for a few minutes,then starts, and gets gradually worse until I need to reboot again.

It started a few weeks ago, but is gradually getting worse, to the stage where I can't do much on my mac.

iMac 24", 2.4 GHz Intel Core 2 Duo, 4GB 667 DDR2 Ram, 1TB HD.

Also, I've repaired disk permissions, to no avail.

Any advice appreciated please.
Hi, it seems a strange one. I would firstly power down and remove the power lead and check it for nicks and creases and make sure that it is seated correctly when you reboot. If you can...swap it out for one that you have borrowed from someone.

iMac 27-inch Mid 2010, WD My Book 1TB Firewire,WD My Passport Air 500GB, Magic Mouse,Magic Trackpad,
iPhone 5C, iPod Nano 4GB 3rd Gen,ATV2, Samsung LE40 Series 6, Denon AVR1910, Kef HTS 1001.2s and Kube-1 Sub
Denon DCD510AE, Panasonic DMP-BD60,Sky+HD,Logitech Harmony One Advanced. MOTM October 2012.
QUOTE Thanks
speni

 
Member Since: Apr 04, 2010
Posts: 10
speni is on a distinguished road

speni is offline
OK, thanks for that.

I couldn't see any dirt etc. on any contacts, but I've replaced the power cable with another. I'll do some work, see how it runs, and post back.
QUOTE Thanks
dtravis7

 
dtravis7's Avatar
 
Member Since: Jan 04, 2005
Location: Modesto, Ca.
Posts: 27,492
dtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond repute
Mac Specs: iMac 2.4 C2D 10.9.4, iMac 2.16 C2d 10.6.8, Macbook2007 10.8.4, Mac Mini 10.8.4, iPhone 3GS Note 8!!

dtravis7 is offline
If that does not help, open Disk Utility in Utilities and check the Hard Drives SMART Status at the bottom? Does it say Passed or Failed? I have seen some of your symptoms when the hard drive is starting to die.
QUOTE Thanks
speni

 
Member Since: Apr 04, 2010
Posts: 10
speni is on a distinguished road

speni is offline
You're a genius!! Replaced the power cable, and all seems well! Many Thanks.

Also thanks dtravis7, checked the status, VERIFIED, so I hope all is well.
QUOTE Thanks
pendlewitch

 
Member Since: Sep 10, 2011
Location: Nelson,UK
Posts: 1,737
pendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of lightpendlewitch is a glorious beacon of light
Mac Specs: iMac 27" Mid 2010, 3.2GHz Intel Core i3,4GB 1333 MHz DDR3, ATI Radeon HD5670 512MB, Mavericks 10.9.1

pendlewitch is offline
Quote:
Originally Posted by speni View Post
You're a genius!! Replaced the power cable, and all seems well! Many Thanks.

Also thanks dtravis7, checked the status, VERIFIED, so I hope all is well.
Well that's made my day after a terrible round of golf!!

iMac 27-inch Mid 2010, WD My Book 1TB Firewire,WD My Passport Air 500GB, Magic Mouse,Magic Trackpad,
iPhone 5C, iPod Nano 4GB 3rd Gen,ATV2, Samsung LE40 Series 6, Denon AVR1910, Kef HTS 1001.2s and Kube-1 Sub
Denon DCD510AE, Panasonic DMP-BD60,Sky+HD,Logitech Harmony One Advanced. MOTM October 2012.
QUOTE Thanks

Post Reply New Thread Subscribe


« Can anybody help with a Mac Mini problem? | New Imac 2.7Ghz v. Old G5 1.8Ghz »
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

All times are GMT -4. The time now is 12:22 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?