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GonzoRob said:
New imac arrived yesterday. Looks good so far (i bet that'll jinx it ;) )

Ran a stress test is osx (copied over 40 gigs, ran 4 movies and had the visualizer on full) with no problems.Will run the GPU test later on...

Honestly, I think i haven't run the iMac long/hard enough for it to crash , so I'm not getting my hopes up!
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but are you using wifi?
 
It may disprove the theory... OR it may mean you're having a slightly different problem... still too soon to say.
 
I have played WoW, watched HD trailers etc over Ethernet and I have had no freezes although the machine is running very hot - the top of the case is boiling lol.

However I have a ugly blue wire draped around the room on top of picture frames currently to do this so this is not a long term solution. I hope a fix is round the corner but even now Applecare claim they have no idea what i am talking about when I speak with them.
 
straleno said:
It may disprove the theory... OR it may mean you're having a slightly different problem... still too soon to say.
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haha, personally, I doubt that there is going to be multiple different problems that cause the exact same freeze on exactly the same model imac !

If you're right we're in deep trouble! ;)

I'm helping one of the tech support guys work out what the issue is. He gave me some software to run (that saves all the logs) after a crash. He, in turn, is working with the apple engineers to solve the issue.

Looks like apple are taking this seriously
 
GonzoRob said:
haha, personally, I doubt that there is going to be multiple different problems that cause the exact same freeze on exactly the same model imac !

If you're right we're in deep trouble! ;)

I'm helping one of the tech support guys work out what the issue is. He gave me some software to run (that saves all the logs) after a crash. He, in turn, is working with the apple engineers to solve the issue.

Looks like apple are taking this seriously
Click to expand...

So they should be on a machine that costs over £1700.
 
For those of you that actually got the replacements shipped to you, did they fix the problem or not? Is your iMac still freezing? Under same conditions or different condiitons? Please note when you rec'd your replacement so we know how new it was. Thanks.
 
WizardHunt said:
For those of you that actually got the replacements shipped to you, did they fix the problem or not? Is your iMac still freezing? Under same conditions or different condiitons? Please note when you rec'd your replacement so we know how new it was. Thanks.
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No had the same problem and a stuck pixel so actually a worse machine.

Recieved the replacement last Friday (24th of April) and ordered a replacement on the Saturday. Apple dragging their heels but it is in the pipeline.
 
I have posted this in two of our other iMac freezing threads, but I don't know which ones everyone reads, so here it is again.

I am now at about 4 hours of the iMac being on since it was delivered this afternoon. I have been transferring files OVER WIFI that entire time, over 20GB so far. I have also played music with visualizer full screen, been installing WoW (Their online client downloads and installs at the same time, so its more WiFi use, and more hard disk usage than just downloading), plus web surfing, just did some video chat on Gmail, etc.

Not a single stutter or small sign of a freeze.
 
VulnoX said:
I have posted this in two of our other iMac freezing threads, but I don't know which ones everyone reads, so here it is again.

I am now at about 4 hours of the iMac being on since it was delivered this afternoon. I have been transferring files OVER WIFI that entire time, over 20GB so far. I have also played music with visualizer full screen, been installing WoW (Their online client downloads and installs at the same time, so its more WiFi use, and more hard disk usage than just downloading), plus web surfing, just did some video chat on Gmail, etc.

Not a single stutter or small sign of a freeze.
Click to expand...
I give you $2500 for it :)
 
Prepared for shipment!

I hope it ships out tonight so I get it tomorrow.
 
VulnoX said:
I have posted this in two of our other iMac freezing threads, but I don't know which ones everyone reads, so here it is again.

I am now at about 4 hours of the iMac being on since it was delivered this afternoon. I have been transferring files OVER WIFI that entire time, over 20GB so far. I have also played music with visualizer full screen, been installing WoW (Their online client downloads and installs at the same time, so its more WiFi use, and more hard disk usage than just downloading), plus web surfing, just did some video chat on Gmail, etc.

Not a single stutter or small sign of a freeze.
Click to expand...

Use it for a few days and take my poll so we can see how the replacements are doing. My poll is located at:
https://forums.macrumors.com/threads/693621/
 
Ok to catch you up to date. I emailed Tim Cook, the acting CEO of Apple while Steve Jobs is taking some time off. I got a phone call from his team. They had a High Level Tech Support Specialist contact me today and they gave me a program to capture my logs to trace why my freezes have been happening. They are putting a High Priority on it and I should know something within 24-48 hours. I will relay the findings here.

I did ask her a few questions regarding fan control, I see on this site that some of you are installing smc and other software and making your fans go faster to cool down the temperatures. She told me that it is not recommended that you do this, and that is because it will make your fan not last as long as it should for one thing. That alone is good enough for me. I did install istat to monitor some readings. She said that is ok, but they are not 100% accurate. But they will give you some idea of what is going on.

Also did you know that on your 2nd DVD install disk where applications is on there is a Hardware Test program. The instructions on how to use it is on the disk. You can try that if you like. Mine passed ok.

According to this Tech Support Specialist, the Apple Engineers do not have enough data yet and needs to collect as much as they can to figure out the program. So from that I think this will not be a quick fix. We are probably looking at least a month at the earliest to see a fix on this and maybe longer.

This of course is only my opinion and I could be way off. If you get a chance, call your Apple Tech support and tell them that you want to discuss with a High Level Tech Support Agent and give them your logs for the engineers to look over. The more logs they have to review the faster this fix will come. The program they use to capture the logs is called CaptureData81.

It will capture only the crash logs and make a DMG file in which you will upload to send by email back to the Support Agent. If you want a faster fix, then do this today. Contact Apple Support and tell them that you want the CaptureData81 program and that you want to give them your logs for the Apple Engineers to review. The more logs they have the faster we will get rid of these lockups. Hope this helps.

Sorry to repeat myself on these threads but I wanted to make sure more people see this and take action so we can get the fix faster.
 
My Imac has been on for days now without any freezes or issues of any kind. I have the 3.06 24" model with 4 gigs of RAM. I have had it hard wired to the network and have not used wireless at all.
 
My iMac was attempted to be delivered today, but I wasn't home. so now I'm going to the facility to pick it up.

Date 1st computer was delivered (knock on your door): 4/13
Date you placed computer into FedEx possession: 4/16
Date FedEx is expected to deliver computer to Apple: 4/22
Estimated Days to ship 2nd computer (while order status says "not yet shipped"): 5-7 business days
Estimated Delivery date of 2nd computer (while order status says "not yet shipped"): April 24 - April 28
Date Apple has started building your 2nd computer (when order status no longer says "not yet shipped"): 4/29
Date FedEx is expected to deliver (the day you KNOW you will hear a knock on your door): 4/30
Any Freezes?: TBA
 
Thanks for the link lazano, I already knew about the bios update, but had no idea this had happened in the past to other AMD video cards.

Maybe Apple isn't at 100% when working with AMD cards but are fine with nVidia. Both nVidia and AMD have proprietary code, calls, instructions and other nerdy low level stuff that only nVidia and AMD understand fully.

The difference in the way nVidia and AMD do things is evident when you look at the Xbox and Xbox 360. The first Xbox had an nVidia (I think it was a 3800) card, the 360 has a custom ATI card similar to the HD 1800. Even tho both Xbox's use Direct X as the graphics language, Microsoft had to reverse engineer a way to convert nVidia instructions from Xbox into ATI instructions for Xbox 360 in order for Xbox games to run on the 360 and to this day they have not being able to engineer a way for every nVidia based game to run on the ATI card.
 
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