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View Full Version : serious power problem with g4


kleggett
Aug 8, 2003, 02:51 PM
This is really odd....went to bed and g4 was ok. Woke up and it will not boot. The light on the box itself will come on when pressed. The monitor (flat panel) has power to it. But the box will not boot. No fan, no sound of the harddrive working. Nothing. You push the button and nothing happens. So i think that rules out the power supply considering the monitor has power correct. I did a search and couldn't find the same symptoms anywhere on the board. Any one help me with this? Thank you in advance!

edesignuk
Aug 8, 2003, 02:53 PM
I had this problem with my Quicksilver, AppleCare had to replace the logic board :(

kleggett
Aug 8, 2003, 03:04 PM
Did they put a price on your invoice about how much that part was? I think i'm out of service for that.... :(

edesignuk
Aug 8, 2003, 03:06 PM
Originally posted by kleggett
Did they put a price on your invoice about how much that part was? I think i'm out of service for that.... :(
I's sorry, I have no idea! Maybe replace the PRAM battery (I think that's what it's called) first, it *could* be that, and you wouldn't be wasting a lot of money if it doesn't work.

morlium
Aug 8, 2003, 03:14 PM
or hold the PMU button for 10 seconds.

(it's on the motherboard near the RAM slots)

codycartoon
Aug 8, 2003, 03:28 PM
was there a power outage last night? Because i kind of had the same thing happen to me, I went to sleep and the powermac was sleeping then when i woke up the next day it wasent making any sounds or anything, when you pressed the power putton it would just light up a little more. I called apple care and they told me to unplug it then open it and press a small black button on the corner of the motherboard to the right of the purple and green battery...it is a tiny black circular button that mounts on a metal fram... It is the reset button for it. Maybe that will work...

good luck
-cody

kleggett
Aug 8, 2003, 03:30 PM
cody, and morlium i do not think that there was a power outage last night..i'm not exactly sure though...i'm going to give that a shot when I get home tonight....it just sucks...grrrrrrrrr thank you guys (all of you) for your responses so far.. it means a ton to me!

Mblazened
Aug 8, 2003, 03:31 PM
bad power supply- common with quicksilvers

Mblazened
Aug 8, 2003, 03:32 PM
power supplies are cheaper than most parts, though. If you try all the above fixes and they don't work, you should just see if you can get a p.s. and install it yourself for cheaper

morlium
Aug 8, 2003, 03:33 PM
I had to reset the PMU of my Mac, and there was no power outage.

Sometimes it just happens, and I'm thinking that's your problem.

kleggett
Aug 8, 2003, 03:47 PM
Originally posted by Mblazened
power supplies are cheaper than most parts, though. If you try all the above fixes and they don't work, you should just see if you can get a p.s. and install it yourself for cheaper I was thinking that at first however, considering that the monitor is powered by the box wouldn't that rule out a PS? On a pc this would be an easy troubleshooting venture..but i'm a newb on macs and proud of it :)

kleggett
Aug 8, 2003, 06:07 PM
Originally posted by codycartoon
was there a power outage last night? Because i kind of had the same thing happen to me, I went to sleep and the powermac was sleeping then when i woke up the next day it wasent making any sounds or anything, when you pressed the power putton it would just light up a little more. I called apple care and they told me to unplug it then open it and press a small black button on the corner of the motherboard to the right of the purple and green battery...it is a tiny black circular button that mounts on a metal fram... It is the reset button for it. Maybe that will work...

good luck
-cody This was exactly the problem. Mac is back up and working now. Thank you so much to everyone that assisted me with this...... :D :D