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Has your Radeon 4850 based iMac froze more than once?

Did your Radeon 4850 iMac freeze more than once?

  • Yes

    Votes: 65 58.0%

  • No

    Votes: 47 42.0%
  • Total voters
    112
Anyone tested iMac fan control to force the video card fan to cool it ?
A guy on the apple forums tried it...
I'll have my iMac tomorrow to try that ;)
 
Sermon said:
Had it since April 14, plenty of iTunes, iChat (with and without video), playing games like Doom 3 and Quake 4, lots of surfing, downloading and watching Quicktime stuff in HD (1080) and as of yet not a single lockdown. Hope it stays that way, but everyone out there experiencing problems, you have my sympathy.

I hope the issue will be addressed by Apple and they'll fix it soon, whatever it is.
Click to expand...

do you connect to the internet via ethernet or wifi?
 
davemulheran said:
do you connect to the internet via ethernet or wifi?
Click to expand...

I connect to the internet via cable modem, so it's Ethernet. Like I said, haven't had any problems yet, but that doesn't necessarily mean the problem isn't lurking somewhere behind the next corner for me. Haven't done anything so GPU-heavy yet, so maybe that's why I haven't had any troubles yet. But then again people are reporting that their system freezes while surfing with Safari or while listening to music via iTunes, so I don't know ... at the moment I just consider myself extremely lucky.
 
ineusch said:
You have to add all the users that do not have a problem, and therefore did not start reading the forum and did not vote :D
Click to expand...

This logic is faulty. If that was the case, we wouldn't be seeing the distribution we currently have. Granted, I do agree that the actual real-life percentage of faulty imacs is highly likely to be lower than what we are seeing here.

Make no mistake, the ratio of faulty 4850 imacs is very significant.
 
I've been using mine for about a week (since April 14) now no crashes. It's a 3.06GHz. I've run Migration assitant to get files off my old iMac, used itunes, iphoto, safari, vlc, Vuze, eyetv, tvu and played COD3, because of Vuze, I run it about 20 hours a day, (I also use my iMac to watch tv) no problems here. The GPU will get to about 70C while gaming, but that's no problem, it should be specified to at least 85C, if not 125C.
 
Sermon said:
I connect to the internet via cable modem, so it's Ethernet. Like I said, haven't had any problems yet, but that doesn't necessarily mean the problem isn't lurking somewhere behind the next corner for me. Haven't done anything so GPU-heavy yet, so maybe that's why I haven't had any troubles yet. But then again people are reporting that their system freezes while surfing with Safari or while listening to music via iTunes, so I don't know ... at the moment I just consider myself extremely lucky.
Click to expand...

I havent done anything heavy on the imac. I dont own any mac games or large software. Ive only ever used safari and itunes! yet I still have 10+ freezes under my belt with minimal use. I am a Solid WIFI user though, connecting to my mac mini downstairs, remote linking to imac from plex and torrent downloads.

Anyway, I rang apple and they are sending me a new build. I am also holding on to my faulty one until it arrives :D well done :apple:
 
kdogg said:
I've been using mine for about a week (since April 14) now no crashes. It's a 3.06GHz. I've run Migration assitant to get files off my old iMac, used itunes, iphoto, safari, vlc, Vuze, eyetv, tvu and played COD3, because of Vuze, I run it about 20 hours a day, (I also use my iMac to watch tv) no problems here. The GPU will get to about 70C while gaming, but that's no problem, it should be specified to at least 85C, if not 125C.
Click to expand...

How do you connect to the internet mate? WIFI or not?
 
davemulheran said:
I havent done anything heavy on the imac. I dont own any mac games or large software. Ive only ever used safari and itunes! yet I still have 10+ freezes under my belt with minimal use. I am a Solid WIFI user though, connecting to my mac mini downstairs, remote linking to imac from plex and torrent downloads.
Click to expand...

That's really annoying. I guess the most demanding thing I've done so far was to play Doom 3 on max resolution, including V-Sync and anti-aliasing - been playing for two hours and no crashes/freezes/lockups. TOday I watched a few HD-trailers and looped them for a while, just to see if I could produce a freeze, but nothing there as well. I'm seriously beginning to give this WIFI/Ethernet theory quite some credibility (until the one guy comes in saying he's had freezes with Ethernet ;))

I am also holding on to my faulty one until it arrives :D well done :apple:
Click to expand...

Heh - good for you! How'd you manage that?? Let's hope this new one works ... fingers crossed!

Anyway, I hope Apple will find the cause of the lock-ups soon and will release a tool where everyone can actually try for themselves if they're affected or not. They must be aware of the issue by now, although I'm still quite surprised that Macrumors hasn't run this one their front page yet ....
 
davemulheran said:
How do you connect to the internet mate? WIFI or not?
Click to expand...

I connect the modem directly to the computer (ethernet), although for the first two days, before I packed away the old iMac and sold it, I was using wifi. Also i meant COD4, not COD3
 
We might be on to something here. Been to a few other forums and have asked the question there as well and so far every single working iMac is connected to the Internet via Ethernet and everyone who is using WIFI is having the lockups.

Maybe we should start a separate thread on the issue?
 
Sermon said:
We might be on to something here. Been to a few other forums and have asked the question there as well and so far every single working iMac is connected to the Internet via Ethernet and everyone who is using WIFI is having the lockups.

Maybe we should start a separate thread on the issue?
Click to expand...

Good idea! Maybe another Poll!

1) Locks Up - using WiFi
2) Locks Up - using Ethernet
3) No Lock Ups - using Wifi
4) No Lock Ups - using Ethernet
 
People on the Apple.com forums are reporting that using fan control has solved their freezing issues.
 
Sermon said:
We might be on to something here. Been to a few other forums and have asked the question there as well and so far every single working iMac is connected to the Internet via Ethernet and everyone who is using WIFI is having the lockups.

Maybe we should start a separate thread on the issue?
Click to expand...

think that to try to discard the wifi problem, people who didn't have the problem so far (and have the possibility) should switch from ethernet cable to wifi for a quite long period in order to see if theirs hang too.

And viceversa, people who had the problem should switch from wifi to ethernet to see if their machines cease to freeze
 
jebiwan said:
think that to try to discard the wifi problem, people who didn't have the problem so far (and have the possibility) should switch from ethernet cable to wifi for a quite long period in order to see if theirs hang too.

And viceversa, people who had the problem should switch from wifi to ethernet to see if their machines cease to freeze
Click to expand...

ok, im running the test now.

In windows, disabled wifi card, running GPU stress test. So far been going to 20 minutes. I'll run it for a couple of hours. If it doesnt crash, Ill do it again with the wifi enabled. See what happens.
 
My new iMac did not freeze up for the first 24 hours even under heavy gaming.

However, I used iDVD to watch a dvd movie and it crashed twice.

I was connected to the internet via ethernet, although I don't think I disabled the WiFi.

-M
 
Matthoss said:
My new iMac did not freeze up for the first 24 hours even under heavy gaming.

However, I used iDVD to watch a dvd movie and it crashed twice.

I was connected to the internet via ethernet, although I don't think I disabled the WiFi.

-M
Click to expand...

Well, I've got WiFi enabled and am connected to the Internet via Ethernet and haven't had any lockups. I guess you just thrashed our theory ...
 
Matthoss said:
My new iMac did not freeze up for the first 24 hours even under heavy gaming.

However, I used iDVD to watch a dvd movie and it crashed twice.

I was connected to the internet via ethernet, although I don't think I disabled the WiFi.

-M
Click to expand...

You didn't disable Wifi, but is it also connected?
Since you don't use it anyway, can you please disable AirPort and let us know if you iMac still freezes. :)
 
Macole said:
Are the wifi cars on freezing and non freezing iMacs the same model ?
Click to expand...

It should be the same.
However, I guess those who didn't experience any freeze just simply don't use wifi. We need those people to confirm though.
 
no freeze yet

Finally got my 24" iMac w the ATI 4850...This is a beautiful setup and I haven't gotten any freeze at all. For those of you that are worried, don't be. Buy the iMac w/ the ATI and you wont be dissappointed.

Absolutely beautiful...worth the wait and the $$$...enjoy y'all.
 
imac with 4850

Hello

When I first received my iMac I was using WIFI (Airport) over my wireless network since I did not have extra 20' ft ethernet cable. After about 3hrs of playing with iMac I was listening to song with iTunes when iMac froze. I was not able to force quit iTunes. I had to turn off iMac to unfreeze. I did get ethernet cable later on Saturday and turned off WIFI. I only use ethernet network cable now to connect to internet. I have used iMac every day and have not experienced any lock-ups since.

the new iMac rocks..just hope apple can fix the video ichat/share screen problem.

Ordered iMac 24" 2.93 ghz ATI 4850 on March9th
Received iMac on April 18th

Hope this information helps anyone having similiar problems......


Sharky :D
 
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