Re: Power Problem Ruby iMac

[Jim Foster]

Not sure I know, but one thing I would try would be to use one of the 
Apple CD's which came with your iMac to boot it up. Given your 
description of the status, I suppose that means plugging in the AC 
cord, hitting the power button, and then seeing if it will accept a CD. 
If it accepts the CD, hold down the "C" key which normally is how you 
tell the Mac that you want it to boot from the CD.  If you still don't 
get anywhere, I would try powering it off and then turning it back on 
again, all with the CD still installed, and holding down the "C" key, 
as it is possible that during the time it took to insert the CD the 
first time around, the iMac may have bypassed the CD-ROM check.

Oh, I have also found that some USB devices can cause a Mac to not 
power up properly, so you might try disconnecting all USB devices and 
see if that helps. Of course, if it does and the unit fires up, you 
will have no way to shut it down again except to try holding the power 
button on for a few seconds, or pulling out the AC power cord, since 
you won't have a keyboard or mouse to do a normal Shut Down. But at 
least you will have started to isolate the issue and you can go from 
there to figure out exactly WHICH USB device is causing the problem.

Of course, if none of this works because no matter what you do you are 
getting no response at all to the power on button, then I would think 
you have a hardware problem, like a blown power supply or something. 
There are pdf format service manuals available on the web, and you 
could try locating one of those and seeing if it has a set of 
diagnostics steps for this condition, if you are technically inclined.

Good luck!
Jim Foster
On 15-Sep-04, at 2:35 PM, Matt Phillips wrote:
 What is wrong with my iMac?

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