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- Your Mac's Specs
- '03 G5 powermac 1.8 - 23" CD, '05 G5 imac 1.8, 08 13" MB 2.4 - 24" led
Hey guys, I did some searching and didn't come up with anything, so I figure I'd see if anyone has any ideas on diagnosing this. The machine is my wife's old desktop, a very lightly used '05 G5 imac 1.8 and basically it started this issue a little over a year ago. It was originally just an occasional thing, but now it's like this probably half the time.
First of all, it wasn't one of the serials on warranty extension for video/power issues and it's never had the lines or distortion on the display that those units did. And yes, the capacitors are fine. Really, it's in perfect operating condition outside of a strong yellow 'tint' that comes and goes with no rhyme or reason. Sometimes it lasts a few minutes....sometimes a few hours. Booting is a coin toss, and you can shake, smack, or probe it with no affect.
We did have it at an apple store once around the time when it started, but they pretty much had no clue since it wasn't yellow at the time and the hardware test is fine. They just listed a bunch of expensive stuff that 'might cause' such a problem, said it was likely the logic board's integrated video component and were all too quick to point out that it would be a better investment to buy a new machine instead. We ultimately did just that, but mainly because my wife really wanted a notebook and the release of the unibody 13" was perfect timing for last xmas, lol.
But this thing just still bugs me and it would be a nice unit for the garage or something, so last week I dug it out of the closet and picked up a mini-dvi video adaptor to attach an old external vga display I had. Interestingly enough, the video out signal is clean, so now I wonder if the worse case scenario (logic board) is even capable of being the cause. Could it be the LCD itself? I have no problem with replacing whatever it needs myself; I just don't want to dump a pile of money into what is essentially now a $500 machine by blindly replacing parts. Here are some pics that show the difference......I'd really appreciate any ideas or opinions. Thanks.
Funny seeing the horrible resolution that the external forces when you enable video out, haha.
First of all, it wasn't one of the serials on warranty extension for video/power issues and it's never had the lines or distortion on the display that those units did. And yes, the capacitors are fine. Really, it's in perfect operating condition outside of a strong yellow 'tint' that comes and goes with no rhyme or reason. Sometimes it lasts a few minutes....sometimes a few hours. Booting is a coin toss, and you can shake, smack, or probe it with no affect.
We did have it at an apple store once around the time when it started, but they pretty much had no clue since it wasn't yellow at the time and the hardware test is fine. They just listed a bunch of expensive stuff that 'might cause' such a problem, said it was likely the logic board's integrated video component and were all too quick to point out that it would be a better investment to buy a new machine instead. We ultimately did just that, but mainly because my wife really wanted a notebook and the release of the unibody 13" was perfect timing for last xmas, lol.
But this thing just still bugs me and it would be a nice unit for the garage or something, so last week I dug it out of the closet and picked up a mini-dvi video adaptor to attach an old external vga display I had. Interestingly enough, the video out signal is clean, so now I wonder if the worse case scenario (logic board) is even capable of being the cause. Could it be the LCD itself? I have no problem with replacing whatever it needs myself; I just don't want to dump a pile of money into what is essentially now a $500 machine by blindly replacing parts. Here are some pics that show the difference......I'd really appreciate any ideas or opinions. Thanks.
Funny seeing the horrible resolution that the external forces when you enable video out, haha.