Re: I need help with my 2002 imac G4 17" all in one desktop

2018-06-23 Thread 'John Carmonne' via iMac Group


On Jun 22, 2018, at 9:48 PM, Josh Juran wrote:

> On Jun 22, 2018, at 9:01 PM, Will go  wrote:
> 
>> I inherited this imac and tried to get on it but I have no idea what the 
>> password is and the only person who knows the password is no longer with us 
>> is there anything I can do to get passed this or is it just trash now?
> 
> 

You can boot it with any install disc up to 10.4 and maybe 10.5 and use the 
utility menu to change or eliminate password.


John Carmonne
Yorba Linda CA
92886 USA
MacPro 2.66 Quad Nehalem






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Re: 2008 imac won't start

2018-03-31 Thread 'John Carmonne' via iMac Group

On Mar 31, 2018, at 6:07 PM, fishjoy...@gmail.com wrote:

> Hi John,
> This sounds intriguing--and like you say, what do I have to lose.
> Although I have worked with Macs for many years, I do not have much 
> experience inside one. 
> Are there photos or videos for the process you describe? I am not even sure 
> what you mean when you say "Take the card off of the heat sink."
> And where do I buy the paste?
> Thanks for your help!
> -Joe
> 

You'll find video card replacement instructions on iFixit site and many others 
in a Google search.  Most Radio Shack stores and most electronic stores have 
thermal paste. BTW you can get the card out without removing the logic board. 
Look at some of the You Tube videos. However someone suggested a couple new RAM 
sticks you may want to try that first.

John


John Carmonne
Yorba Linda CA
92886 USA
MacPro 2.66 Quad Nehalem






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Re: 2008 imac won't start

2018-03-30 Thread 'John Carmonne' via iMac Group

On Mar 30, 2018, at 10:53 AM, Jim Scott wrote:

> 
> In the case of your 2008 iMac, in addition to all of the above, the cooling 
> fins of the heat sink can be clogged by dust, etc. over time as the air 
> intake vents directly below the card and heat sink assembly are hoovering up 
> stuff from the desktop. This leads to overheating and eventual failure of the 
> BGA. Reflowing the BGA doesn’t work because by the time the problem shows 
> itself, too many of the microscopic traces inside the chip have been damaged 
> by arcing. That’s why a more permanent repair involves replacing the chip 
> with a new one. But new chips are hard if not impossible to find, and my 
> favorite eBay bad chip repair/replace guy refuses to work on those old iMac 
> video cards because he can’t guarantee a reflow and he can’t obtain new chips 
> that will work with the card.
> 
> Been there, done that a number of times. It’s time to ewaste that iMac, in my 
> experience.
> 
> Jim Scott, Eureka, CA
> 
 
 I have recently fixed a number of these iMacs may sound crazy but it worked 
for me. It's free and at this point you have nothing to lose.

Take the card off the heat sink and clean all the paste off.
Pre heat oven to 390 F (pre heat is important)
Place card on 4 small aluminum foil balls at the corners
Bake for 7 mins
Open door and let board cool don't touch it or move it.
When cool reinstall (don't forget to apply new paste).

I have also found some with faulty fans so check the fan working before you put 
it all back together.



John Carmonne
Yorba Linda CA
92886 USA
MacPro 2.66 Quad Nehalem






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Re: 2008 imac won't start

2018-03-26 Thread 'John Carmonne' via iMac Group

On Mar 26, 2018, at 6:17 PM, fishjoy...@gmail.com wrote:

> Hi all,
> My mom's 2008 iMac with Yosemite and 4 GB RAM will no longer start. (Sorry 
> that I don't more specs, but it won't start)
> When I push the power button, all I hear is a clicking sound near the optical 
> drive. No startup chime.
>  
> 
> The machine worked fine for about a week, but today when I tried to wake it, 
> I got a black and white checked screen. I had to force it to shut down, and 
> now it will not start again. I get the same clicking sound near the optical 
> drive. However, if I pull out one of the RAM cards, I can get a startup 
> chime, but I still have a black screen.
> 
> Any thoughts on this issue, or how to troubleshoot it?
> Thanks!
> Joe
> 

Sounds like video card to me.


John Carmonne
Yorba Linda CA
92886 USA
MacPro 2.66 Quad Nehalem






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Purpose of iMac solid-state drive

2016-04-26 Thread 'John Carmonne' via iMac Group


> 
> 
> On Apr 26, 2016, at 4:28 PM, bobs2ndem...@gmail.com wrote:
> 
>> My wife's iMac mechanical hard drive crash today, and will be replaced by 
>> Apple. What data/software does the solid-state drive hold? (I am definitely 
>> not technology inclined. I use computers, but my understanding of how they 
>> operate is not deep!)
>> 
>> Bob
>> 
> 
> I put them in all iMacs. A 1TB is cheap now and it will make that machine a 
> rocket:-)
> 
> John Carmonne
> Yorba Linda CA
> 92886 USA
> MacPro 2.66 Quad Nehalem
> 
> 
> 
> 
> 
> 

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Re: a1076 Boot Up Error

2014-11-16 Thread 'John Carmonne' via iMac Group

On Nov 15, 2014, at 8:12 PM, Francisco Valdez wrote:

> Hey every. I bought an iMac a1076 a few months aop for my girlfriend and one 
> day it didn't want to turn on anymore. Whenever I try to turn on the imac it 
> just tells me to turn off the computer and let it restart. I think it might 
> be a bad hard drive but I want to hear what you guys have to say. 



Try reseating the RAM and try removing one stick.



John Carmonne
Yorba Linda CA
92886 USA
MacPro 2.66 Quad Nehalem






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