Imac g5 - burned power inverter?

I have one of those so called troubled Imacs with a video issue. Video eventually went to an intense plaid like pattern but compter itself ran great. I inspected all capacitors, even the ones in the power supply and they all look perfect. I took the power inverter that feeds power to the monitor and flipped it over and saw a small area of the circuit board discolored and burned. Its where a series of 6 black wires plug into the board. I have pictures to show (see links). Any suggestions here would be great as it is an older mac and I dont want to be spending additional money at guessing the problem.

Do mac techs reply to these forums?
No. We are all just fellow Mac users who volunteer their assistance here.
13 views and not a peep!!!
None of them, including me, knows the answer, but it would seem that you need a new mother board.
Better still, a newer Mac, as that would cost you about 75% of the price of a new Mac.

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Power Supply, or Power Inverter Card

i believe I'm suffering from a common problem with my 20" ambient-light imac. It shuts down intermittently, without warning, as though the plug were being pulled.
I've tried the SMU reset, sometimes it helps for a day or two, sometimes it doesn't. I'm ready to try replacing parts. The only question is whether there is a consensus that this is a problem with the power supply, or the power inverter card? I'd rather not replace both if I don't have to.
Thanks!

Hi there Eric,
you forgot to remind Lukaziod to backup/clone his computer (using SuperDuper!)before having it repaired!
As an aside, the ambient light computer is user serviceable, Apple can send a PSU and dyi instructions,
Miriam

Can I use a power inverter?

Hello everybody
I did'nt know where to post this question...anyway
I have a show this weekend, and my booth doesn't have electricity, is it at all possible to take a car battery in with me and use a power inverter for powering my imac?
If I am running a slideshow demo, how long would the battery last?
does anybody have any other suggestions for powering the imac w/o power nearby?
thanks
Rob

If I had no choice but to use batteries, I'd:
1. Use at least 2 apple laptop batteries intended for my computer (fully charged).
2. If I also needed power for other items such as a camcorder, etc, I'd rent specialized 12 v. (low amp) batteries called "Bricks" from a video rental supply outfit prior to the trade show time. And I'd test the brick/s prior to showtime.
....or.....
If it were physically impractical to have an 120 AC outlet installed at my own booth, I'd ask to share electrical with a nearby booth while offering to pay for the entire service for both booths & run a heavy duty electrical extention cord grounded and carefully duct taped to the floor (along the back of the booth) or where there is very little /no traffic.

Does anyone know the Power Inverter Board p/n?

Does anyone know the Power Inverter Board p/n for the iSight 1.9Ghz iMac? I understand there are several but knowing me, I'd buy the wrong one.

If you commonly like to read posts on a certain subject you can store a query link in your browser to more quickly find specific posts. For example I have the following link bookmarked in my browser.
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Principal Systems Engineer, National Instruments
Please tip your answer providers with kudos.
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Where can I purchase a display panel power inverter for a C700 Compaq laptop? Part #454915-001

Where can I purchase a panel display power inverter for a Compaq Presario C770US (FE932UA) Laptop?

go on give it a go! what have you got to lose;
http://www.ifixit.com/Guide/MacBook+Core+2+Duo+Inverter+Cable+Replacement/4772

What is the amount of DVDs that an iMac DVD Burner can burn? (or MTBF)

What is the amount of DVDs that an iMac DVD Burner can burn (DVD burner life time)? (or MTBF)

Your question sounds a bit like you want to use the Superdrive professionally? Personally, I would not depend on a vertically installed, super slim Drive where any media can easily shift by 1/100th of an inch. I've noticed that mine definitely needs to "rest" and cool off after about 3 DVDs. I purchased an external burner quite a few years ago (when I had an iMac without a Superdrive) and I still prefer to use it - it is sturdy, can read all sorts of media, and is reliable whereas the SuperDrive is known to be extremely finicky especially about the media they will read or write to.
So, I don't have a specific answer for you, but I wouldn't rely on it.

Can the latest i3 imac's burn more than 4.7 dvds?

Looking to find out if they can or do they need toast or a custom external dvd burner that does larger storage dvds. Thanks

photohead,
You're iMac will burn dual-layer 8.4 Gig dvds.
Cheers

Problems with car power inverter

It seems that my 300w Wenchi car power inverter does not work with my recently purchased MacBook Pro 13?
Info abot my Wenchi (Made in Taiwan) Power Inverter:
Model No: WHS-300
DC Input Voltage:12V-14V
AC Output Voltage: 230V
AC Output ferquency: 50Hz
Output power: 300W
Output wave form: modified Sine Wave
I appreciate very much if anyone can help.
Thanks

I have done it and the output is 230V. My inverter is a big one which can be used even with devices like TV etc.. I mean that the problem is that my Macbook Pro does not like modified sine wave. Yesterday purchased 10 x smaller, fully quiet car adapter for Macbook Pro with magnet contact and got so needed incar power supply immediately.

My brand new iMac will not power up after an update restart, any suggestions?

Any suggestions on why my IMac will not power up after it done a restart?

Try an SMC reset and PRAM reset: https://discussions.apple.com/docs/DOC-3603
If that doesn't help:
See if it will start in Safe Boot: restart holding down the Shift key until you see a grey progress bar, type your admin password when prompted, let it continue to (hopefully) boot. Restart as normal from the Apple menu.
If that didn't help, try booting into the Recovery HD: restart holding down Command+r and choose Disk Utility from the four choices when they appear on screen. Once DU has launched select your Macintosh HD on the left and click on 'repair disk'. If anything gets changed click on repair disk again until you get a clear pass, restart as normal from the Apple menu.
If you still have problems, give AppleCare a call.

Powering MacBook Pro via Car Power Inverter issue

Hello,
I recently acquired a car power inverter from a family member to use on a trip this week. My wife and I tried it out tonight and found that it didn't work with our MacBook Pro. The Inverter is a 500watt / 4.2amp inverter. When we plug in the adapter to power the macbook pro the LED on the inverter blinks signaling to us a problem. The manual (and back of the inverter) reports that a blinking LED means one of three things, (1)DC input is out of range,(2)Excessive Load, or (3)Unit is too hot. Clearly it wasn't the third considering we JUST turned on the unit. The back of the inverter also says that the Output is 120V AC, 60hz and 500watts. My question is, what exactly is the necessary range of power needed to power the MacBook Pro's adapter? Could the battery be an issue if it was at about 10% charged(I thought it might be and removed it but still didn't get a working adapter)?
In case it matters, the power inverter is a "Vector Maxx SST(Soft Start Technology) 500watt".
Thanks for the help!

Hmm, I use an "el cheapo" inverter that I got at fry's that's rated for MUCH less then 500 Watts, (about 120 actually) that has no problems running mine so I would suggest that it's probably a problem with your inverter...

My iMac wouldn't turn on. This has happened out of nowhere, it was working really well before. checked my power cord and outlets everything's fine. The iMac has no power at all. no sound or anything, completely dead. It is only 1 year and 2 mos old.

My iMac wouldn't turn on. This has happened out of nowhere, it was working really well before. checked my power cord and outlets everything's fine. The iMac has no power at all. no sound or anything, completely dead. It is only 1 year and 2 mos old. Any idea what it could be?

I have purposely been ignoring your responses to my posts about the heat issues in the newer design iMacs, but if you want really want to ague the point...
First, the iMac is marketed as a desktop model Mac. Not a laptop or MacBook.
I have never owned a MacBook, so I can't attest to how much heat the MacBooks generate.
I Have two iMac models. A 2009, 27 inch screen iMac for myself. And a 2010, 21.5 inch screen iMac for my Fiancée.
As a desktop Mac these are hottest running desktop Macs I have ever owned. Period. I owned two beige Macs, a pre-G3 tower, aG3 desktop, a G4 MDD Tower, the original iMac, eMac, iMac G4 and now my current iMacs.
None of my previous Macs have ever, EVER ran this hot. I have never, also, had any component failures in any of the previous Macs I have owned, either. All of my Macs have been upgraded or modded to some degree over the years. About 2 years ago I had to press my old G3 back into service. Both my G3 and G4 models have been heavily modded. The G3 ran without issue for a close friend for over a year until that friend went out a got a Mac Mini.
That's a 1996-97 Mac my friend. And it still is in working order and hasn't had any failures.
The fact I am pointing out here is that heat is an enemy to electronic components.
Whether desktop iMac or MacBooks, tightly packed enclosures of heat generating computer components with fans that do not run fast enough at most times to cool off the interior or exterior, will and does slow roast computer components to premature failure.
I do not know how frequent component failure is in the MacBook line up. So I can't attest to those.
I do not participate in those forums.
This is why at some point in computer history, Super Conputers were liquid cooled. PowerMac G5 systems were liquid cooled because they ran too hot!
I have taken my own precautions to keep my iMacs' heat down as much as possible.
I don't have the money to keep buying a new Mac every 3-5 years when some catastrophic failure happens.
I had to purchase my iMacs used as I couldn't afford the cost of a new iMac with the specs I needed.
My idea, your idea and Apple's idea of acceptable operating temps we can argue all day long.
I feel, personally, that the operating temps are too high and exacerbate operational issues.
I Have been participating in these particular iMac forums for just over a year and have seen plenty of posts of iMac component failures due to both heat and dust, dirt issues from within the iMac.
There can be no other reason for all of these failures. The SuperDrive is, usually, the first to go bad.
It's probably due more to its vertical mounting, but the excessive interior heat isn't helping it.
Next to fail is the GPU. The last to fail, but the most expensive to fix, the Logic Board.
I Have seen plenty of posts in my last year here of all of these failures in iMac less than 5 years old and ,perhaps, a little older. 2008 model iMacs seem to have their issues, too!
Apple is focusing too much on design and aesthetics, rather than longevity of their products, I feel now.
A Mac isn't going to last 7- 10 years anymore.
I don't have stats and numbers. Just common sense.
This is my story and I am sticking to it. For what it's worth.

Is Mobile Power Inverter Output large enough for my iBook?

Hello. I have a 12 in iBook and wonder if it can be powered from a Mobile Inverter with the following specs:
175W Output Power Maximum 150W/1.3A Continuous. Output is 115VAC 60 Hz.
It indicates "Caution-Output non-sinusoidal" which I really dont know what that means as far as running a computer goes.
Thanks for any assistance on this.

If you are considering matching input specifications of the iBook's
power adapter and having the mobile inverter run the computer
via the power adapter, since the iBook AC power adapter can be
run per the written specifications on the unit itself, there should
be no lack of information.
The AC Adapter can run from 100-240v 50-60Hz 85-120VA input
and the output is 24VDC 1.875A (per 45 Watt adapter 12" iBook.)
You could just purchase an appropriate DC-to-DC adapter and
not have the heat generation and power wastage of using an
inverter to convert power to AC and then have to go back to DC.
A company by the name of Lind Electronics has some examples.
You may want to double check your power inverter specs and
compare them to the input requirements for the iBook.
Good luck & happy computing!

Using the Kensington Power Inverter w/ iBook G4

I'm going to be going on a trip soon and I was hoping to use the Kensington Power Inverter for use with cars. I'm worried, however, that the inverter will not be able to provide enough power.
When I purchased my iBook, it originally came with a 60W power adapter. A dog kind of ruined that one, and since then I've had to replaced it with a 65W adapter. I'm a little confused as too whether this is 60/65W input out output.
My worry is spurred on by the fact that the Power Inverter can provide 60W continuously, but 75W for only five minutes. I'm wondering if my laptop can be charged or run continuously off of this inverter or not.
P.S. This is the same Kensington Power Inverter that can be found at the Apple Store here. The review apparently hints that it should work, but I'm just a little paranoid, so humor me.

The question should be what is the recommended for minimum free hard drive space.
Check this link.
http://www.thexlab.com/faqs/lackofram.html
And if you start approaching the recommended minimum account or beforehand, this link will be helpful with recommendations to free up hard drive space.
http://www.thexlab.com/faqs/freeingspace.html

Power Inverter

I am going on a trip and need to take my laptop. I am going to purchase a power inverter for the drive, but there are so many available that I don't know which to choose. Is there a cut and dry formula for selecting on for my G4 Powerbook? I've see them as low as $15 up to $500. 45W on up. What wattage should I be looking for to allow my machine to perform properly? Do I need to spend the big bucks, or can I get something to suit my needs for less than $50? Any do's or don'ts that I need to be aware of when making my purchase?
Thanks in advance -

Woooo! Hold the phone! The little white box you use to plug in your powerbook is a power transformer. All you need is a set of plug adapters that go onto the end of the power cord, which will only cost you about five bucks from any travel goods store.

Myth or Truth, iMac uses less power in Standby than when off

I'm sure I read this somewhere on the internet.
I'm not sure what model it was for, but I heard that the imac uses less power when in sleep than being shutdown (when still plugged into the wall)
Can anyone confirm or denigh this?
Ifs it true any web links to this?

If it's powered off, it's using no power at all.
I suspect this is about the power cost of waking from standby versus pwoering up from off, and whether it makes more sense to leave your Mac in standby when out of use or whether to swticth off completely.
It depends on your usage pattern. If you leave the Mac unused for very long periods of time, it makes sense to power off, because standby uses a little power constantly. If you leave it unused for shortter periods, you probably use less power in standby.
Unfortunately, I don't have a magic number for the time period
As a rule of thumb, I'd say if it's unused for less than a day or so, standby makes more sense. There's a discussion at the link below which also fails to give a definitive answer but has some interetsing comments.
http://apple.stackexchange.com/questions/7588/for-least-power-usage-should-i-tur n-off-or-put-my-mac-to-sleep

Imac g5 - burned power inverter?

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