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Automatic switch off

Message #1 - Posted 2007/04/22 - moksaa

My computer has started to switch off or reboot automatically a few days ago. I haven't installed anything new. I've run a memory test and it's not a memory problem. Any ideas what could be causing this? I'm on an iMac G5, OSX 10.4.9.

Thanks in advance,

MV

Message #2 - Posted 2007/04/22 - Gregory Weston

Previously, moksaa wrote:

My computer has started to switch off or reboot automatically a few days ago. I haven't installed anything new. I've run a memory test and it's not a memory problem. Any ideas what could be causing this? I'm on an iMac G5, OSX 10.4.9.

Thanks in advance,

MV

Have you run the full hardware test that came with your machine?

Message #3 - Posted 2007/04/22 - Adrian

moksaa wrote:

My computer has started to switch off or reboot automatically a few days ago. I haven't installed anything new. I've run a memory test and it's not a memory problem. Any ideas what could be causing this? I'm on an iMac G5, OSX 10.4.9.

Thanks in advance,

MV

If you are sure that your mains electricity supply is good then you could have an internal power supply problem. Also check Energy Saver settings in the System Preferences, just in case they were altered somehow.

Adrian

Message #4 - Posted 2007/04/22 - Jolly Roger

On 2007-04-22 06:04:54 -0500, moksaa said:

My computer has started to switch off or reboot automatically a few days ago. I haven't installed anything new. I've run a memory test and it's not a memory problem. Any ideas what could be causing this? I'm on an iMac G5, OSX 10.4.9.

Call Apple Support - your motherboard may have components that are going bad - a known problem with this model.

JR

Message #5 - Posted 2007/04/22 - moksaa

On 22 huhti, 14:42, Gregory Weston wrote:

Previously,

moksaa wrote:

My computer has started to switch off or reboot automatically a few days ago. I haven't installed anything new. I've run a memory test and it's not a memory problem. Any ideas what could be causing this? I'm on an iMac G5, OSX 10.4.9.

Thanks in advance,

MV

Have you run the full hardware test that came with your machine?

Yes I have, everything is ok. The energy saving settings are the same as usual, too.

MV

Message #6 - Posted 2007/04/22 - moksaa

On 22 huhti, 18:47, Jolly Roger wrote:

On 2007-04-22 06:04:54 -0500, moksaa said:

My computer has started to switch off or reboot automatically a few days ago. I haven't installed anything new. I've run a memory test and it's not a memory problem. Any ideas what could be causing this? I'm on an iMac G5, OSX 10.4.9.

Call Apple Support - your motherboard may have components that are going bad - a known problem with this model.

--
JR

Looks like that might be the case. I found the following info, sounds just about right. I'll be contacting the local service tomorrow. Thanks everybody! https://www.apple.com/support/imac/powersupply/repairextension/

MV

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