Replacing Power Supply Problems

Apple Care had kindly sent me a new power supply. It is a self servicing part, i.e. I have to install it myself. Tried for 2 hours yesterday to get the old one out...didn't work.
The problems:
1. Middle screw on back of power supply does not get loose [the screw close to the power cord connector]. I tried to pull the power supply up while loosening screw...no success. Did anybody run in the same problem...how did you get this screw unstuck?
2. Middle case screw [the one at the bottom of the computer] needs to be turned to the right...which is in contradiction to the downloadable manual...but the front ot the screw still touches the power supply...and possibly holds it in.
How easy should the power supply come out...how much force can I apply without breaking the computer's case?
3. Ambient light sensor connector: comes as separate cable. Since I have not gotten the old power supply out, I do not know how to connect the cable to the new one. There does not appear to be a designated hole on the power supply.
Experiences welcome!
Thanks
Jurgen

hi Jurgen.... i just get a new imac g5 and it presents power supply problems the very first day they bring it... so the retalier took it for a repair..i been wating for two months and no sings of a solution... i am looking for help but i can't reach anyone at apple .... so i need some tips here... what should i do?? i tried the chat agent but they are closed..and the retailer refuse tho give enough info to check out about the repair status..they keep saying that the frabric respond very slow and then that the new part they recieved from apple was defectous... well.. if anyone can give me some tip would be very nice and usefull.. i really don,t now what to do... some email to inform apple the situation ?.... thanks for read this... Fernando

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Power Supply problems? how to replace

i think my power supply started making a buzzing noise tonight. i opened my mac up and vacuumed it out, ran the apple hardware test, and the noise is still there. it is not loud, and it sounds like it is coming from the back bottom corner where the power supply sits.
i checked http://www.apple.com/support/powermac/powersupply/repairextension/ and my serial # is in the range that might have faulty power supplies.
the problem is apple won't replace it until it fails completely. i want to avoid that, so how do i know for sure it's the power supply making noise? if so, where do i buy a new one? the apple store doesn't seem to sell them.

that's a bummer that yours died completely. mine made that noise for 2 days, then the noise went away. in the past week it did it again, for about 12 hours.
i'm out of luck with the 3 year deal. i called apple store to see if i can order a replacement power supply and they had no idea what i was talking about. the guy pretended he did, then told me it would cost $40 to get a new cable to "plug my mac in". they didn't even know what a power supply was.
so do you have to send your computer in to apple to have it "repaired" or is it just dead? i'm curious because i wonder how much apple charges to replace the power supply, or if i can purchase one somewhere else and replace it myself.

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What a bummer! If you can get hold of the reseller, go after him for legal discs, if you can't get him, call Apple at 800-767-2775 and they will send you an appropriate set for a nominal fee.

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From all input I gather although my G5 is not the right serial for a free fix I probably have a power supply problem. Unless the inability to power on could be something else, I'm going to give you guys a little time to keep me from wasting some money. It's $100 to have my mac looked at here in Houston as far as I know and they wanted $150 to take a stuck CD out of it which gave me the courage to open her for the first time and it would seem to me I could install another power supply, but would like some feedback about pitfalls. T

I recently had a iMac power supply replaced under warranty. It is, apparently, a routine repair, and I had mine back in two days (including mail).
Power supply issues are easy to diagnose.
PRAM battery is the place to start, as it's the less radical solution.
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1. Turn on the eMac. Go to System Preferences/Battery Saver, and turn these settings all the way to the right, to "Never."
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Hello,
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Tom welcome to the discussions.
I would probably call the Apple number.
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HP Pavillion 873n, replacing power supply have extra adapter. Looks like newer replacement has been slightly modified. Where do I plug this 3 pin femare adapter ?or do I leave it unplugged?
This question was solved.
View Solution.

chariot5 wrote:
HP Pavillion 873n, replacing power supply have extra adapter. Looks like newer replacement has been slightly modified. Where do I plug this 3 pin femare adapter ?or do I leave it unplugged?
I would venture to say that your 3pin female adapter should be plugged into a 3pin male adapter on your motherboard. This allows your system to control fan speed on the power supply. I hope this helps you.

Replacing Power Supply Problems

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