Mac OS X 10.5.6 Shutting Down Spontaneously

[aussiechick7738]

Hey there. My mac os x 10.5.6, (2.8 Ghz Intel Core Duo, 2GB 800MHz DDR2 SDRAM) keeps shutting itself down spontaneously - no error message occurs before or after it shuts down, and when i press the power button on my mac i get no response.

I have to turn it off at the power point and turn it on again.

I have a power surge board and only my mac is plugged into it so i'm pretty sure it's not a surge problem.

It seems to mainly happen when the screen saver comes on, and i have checked all of my system preferences and i havn't selected to turn off hard disk's at any time etc. I have no idea why it's doing any of this!

My mac is only 5 months old.. can someone please help me out!?

Thank you in advance

 

[cudo]

if you are using speed download or other download manager of for that matter any other app which may have a timer option built in. try to check if you havent got it checked. i had the same with SD as it was set to shut down on download completion.

 

[aussiechick7738]

if you are using speed download or other download manager of for that matter any other app which may have a timer option built in. try to check if you havent got it checked. i had the same with SD as it was set to shut down on download completion.

no, it always shut's down right after the screen goes to sleep, (and i have fiddles around and changed the timing of that, each time the same thing occurs).

Also, when i shut the computer down, i cannot simply turn it back on at the mac power button, i have to turn it off at the power point for it to turn back on again. Very frustraiting!

i have checked whether it's a power surge problem and it is not (i use a power surge protection board, and other appliances connected to it work fine snd continue to work even when my mac isn't).

 

[PeaceOut]

I've had something like this happen to me once.
I was just using the computer with the power pluged in and all of a sudden the screen goes blank.

The computer had powered off...no warning...no closing applications and shutting down...just powered off.

At that moment, the charger light indicator went from green to amber. I pushed the power button and it came back and the battery power was down to 0%.

This doesn't sound like what's happening with you but I thought I'd share this as you can be experiencing a battery problem also. This only happen to me once and I can't figure out for the life of me what exactly happened. I did do a PRAM reset and it hasn't happen since.

But upon reading on the internet, it seems to be a battery problem. I'd call Apple Care.

 

[Consultant]

Disk utilty: repair permissions, repair disk

no, it always shut's down right after the screen goes to sleep, (and i have fiddles around and changed the timing of that, each time the same thing occurs).

Ever since the first time you used it?

 

[interconnect]

is this a macbook or macbook pro? there's a whole website dedicated to this problem: http://www.macbookrandomshutdown.com/

this happened to my girlfriends macbook pro, it turned out to be the battery. we brought it in to the apple store, they gave her a new battery and it's never happened again.

 

[aussiechick7738]

Disk utilty: repair permissions, repair disk



Ever since the first time you used it?

no, it started about 3 weeks ago. one minute i was listening to music on itunes and the next it had shut down.

 

[aussiechick7738]

not a macbook.

is this a macbook or macbook pro? there's a whole website dedicated to this problem: http://www.macbookrandomshutdown.com/

this happened to my girlfriends macbook pro, it turned out to be the battery. we brought it in to the apple store, they gave her a new battery and it's never happened again.

its a Mac OS X 10.5.6, just a desktop.