Re: 2008 imac won't start

I wouldn’t bother with a clean install of Yosemite at this point. Whatever RAM you use, make sure both sticks have the same specs and are made by the same manufacturer. IOW, a matched pair. RAM from different manufacturers or that isn’t perfectly matched can do weird stuff, intermittent and

Re: 2008 imac won't start

One other piece of info-- I can get a startup chime when I use two 1GB RAM cards. The screen will stay black, but I can connect through Teamviewer. This is the same when I use either (but not both) of my 2GB RAM cards (so I assume that both of them are good) . Using both of the 2GB RAM cards, I

Re: 2008 imac won't start

Update: 3/30/18: First, thanks so much to everyone who has given me suggestions to try. I really appreciate all of you taking the time to offer your thoughts. I opened the iMac up and vacuumed out all of the dust (there was a lot). It still would not start up when I had both RAM cards in (even

Re: 2008 imac won't start

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

Re: 2008 imac won't start

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

Re: 2008 imac won't start

> On Mar 30, 2018, at 4:17 PM, Jim Scott wrote: > > Hi John, > > I gave up on “shadetree” BGA reflows years ago, but YMMV. My reflows worked > for a while, then died for good. > Another issue with the 2008-era iMacs is that occasionally the “coolant” > (ether, I’m told)

Re: 2008 imac won't start

I BET it is the RAM I'd replace BOTH with DDR2 200 pin DIMs 2GB each... $15 on eBay That Clicking business sounds like a bad HDD! The Click Of Death You want an INDEPENDENT Mac repair shop. Apple Stores are only for items less than 3 to 4 years old! J.C. On Fri, Mar 30, 2018 at 4:17 PM,

Re: 2008 imac won't start

Hi John, I gave up on “shadetree” BGA reflows years ago, but YMMV. My reflows worked for a while, then died for good. Another issue with the 2008-era iMacs is that occasionally the “coolant” (ether, I’m told) leaks out of the tubes running to and from the fins and the heat sink proper. Same

Re: 2008 imac won't start

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

Re: 2008 imac won't start

Il giorno 28/03/18 03:11, "fishjoy...@gmail.com" ha scritto: > In fact, I cannot get even a startup chime unless I pull one of the RAM > cards out. Ok, so it definitely has some RAM issue. Maybe a video card issue, too, but of course that comes later. > It doesn't matter whether the left one is

Re: 2008 imac won't start

It’s the video daughtercard. A bad/faulty/dying video card will thwart boot. The RAM card thing makes sense because only one stick makes it easier for the EFI boot sequence to progress to a startup chime. Or, there’s a conflict between the two sticks that wasn’t apparent until now. Or both. The

Re: 2008 imac won't start

I recall a similar issue I had and I merely replaced the RAM sticks. Also maxed out the RAM while I was at it. Problem solved. On Tue, Mar 27, 2018 at 6:11 PM, wrote: > Thanks for the idea. However, this one (a 24" also) will not boot into > Safe mode. > In fact, I cannot

Re: 2008 imac won't start

Thanks for the idea. However, this one (a 24" also) will not boot into Safe mode. In fact, I cannot get even a startup chime unless I pull one of the RAM cards out. It doesn't matter whether the left one is in or the right one is in, if I only have one RAM card in, it will produce the startup

Re: 2008 imac won't start

Il giorno 27/03/18 03:17, "fishjoy...@gmail.com" ha scritto: > The machine worked fine for about a week, but today when I tried to wake > it, I got a black and white checked screen. Bummer. That screen makes me think about a damaged video card. I had a similar issue with an Early 2008 24" iMac:

Re: 2008 imac won't start

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

2008 imac won't start

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. What I have tried: If I unplug the machine, and remove the two