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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
WizardHunt said:
They allowed you to order one keeping yours, until you get the new one then they will allow you to ship the old one back later? I am surprised. Please clairify.
Click to expand...

I told them it was unacceptable for them to demand my machine back before they started to build the new one. The American guy I spoke to (I'm from the UK) said that was fine and he would email me a waiver form that basically said I had 5 days to send back the old machine after I had received the new one or they would charge my credit card - fair enough.

He then emailed a bit later and said not to worry about the Waiver form - when TNT phone to pick up the defective iMac I should tell them i am not ready for pick up yet and contact them when I am.
 
hh83917 said:
I see, I feel sorry for you. I'd demand a replacement if I were you. I hope your replacement goes well. :(
Click to expand...

I probably would have asked for a replacement too. But you know I can't figure out why Apple would do that so quickly if they know they are going to have a fix for this. Maybe they don't have a fix yet, and that is why they are so willing to replace them without too much hassle, or it could be the great customer service. What do you think?
 
Jammers said:
I told them it was unacceptable for them to demand my machine back before they started to build the new one. The American guy I spoke to (I'm from the UK) said that was fine and he would email me a waiver form that basically said I had 5 days to send back the old machine after I had received the new one or they would charge my credit card - fair enough.

He then emailed a bit later and said not to worry about the Waiver form - when TNT phone to pick up the defective iMac I should tell them i am not ready for pick up yet and contact them when I am.
Click to expand...

That is Great. I did not know they did that. That way you can still use yours up to the point of getting the new one. Awesome. :D
 
MTShipp said:
Is there a safe mode for booting an iMac like there is for Windows? Perhaps running in safe mode will help determine if it is hardware or software.

A n00b with Mac so no flames on this question please.
Click to expand...

To start up into Safe Mode (to Safe Boot), do this:

Be sure the computer is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone but not before.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
During startup in Mac OS X 10.4 or later, you will see "Safe Boot" on the login window, which appears even if you normally log in automatically.

During startup in Mac OS X 10.2 through 10.3.9, you will see "Safe Boot" on the Mac OS X startup screen.

To leave Safe Mode in any version of Mac OS X, restart the computer normally, without holding any keys during startup.
 
Yes, three times in 8 hours.

- First time after 5 (five) minutes of its life (just opened safari...and then...freeze)
- Second time when playing a youtube video
- Third time using iPhoto09

Well...I have a lot of things to complain about...On monday I will call Apple Support. I hope that just a firmware upgrade will fix this issue.

Just one consideration: Apple sells just two/three kind of video cards (or five/six..I don't know)..is it so difficul to test them BEFORE sell? I don't think this is an unknow issue...

Ciao

Fabio
 
apple do something

WizardHunt said:
12 times? wow, in how many days or are we talking about hours?
That is a lot of times to freeze up? Is it always the same thing you are doing when it freezes?
Click to expand...

In 2 days!

i did:

1. Webbrowsing(watching youtube, flashvideos) often
2. Downloading with jDownloader often
3. watching eye tv dtt
4. opening the dashboard
5. Adium often
6. watching a normal divx video
7. listening to itunes music with visualizer turned on
8. using mail

the things with "often" behind were quite everytime open when a freeze happened...
 
OBSIA said:
In 2 days!

i did:

1. Webbrowsing(watching youtube, flashvideos) often
2. Downloading with jDownloader often
3. watching eye tv dtt
4. opening the dashboard
5. Adium often
6. watching a normal divx video
7. listening to itunes music with visualizer turned on
8. using mail

the things with "often" behind were quite everytime open when a freeze happened...
Click to expand...

Another words, pretty much normal use. Bummers! That is not good news for Apple. :(
 
Clean install?

My 2.93 with 4850 is about to be delivered; this is not the news I was looking for. I was hoping for enthusiastic reviews of the 4850. Hard to tell if it's software or hardware.

Anyone here has done/tried a complete clean install? Sure is worth a try.
 
serum said:
My 2.93 with 4850 is about to be delivered.
Click to expand...

Got mine delivered 3 days ago now and it has been turned on since it arrived. And not a single lock up at all.

Lots of web surfing (safari and oepra), bit of work in lightroom, entourage email, a few skype calls (with and without video), a 6 hour session of WoW and several shorter sessions.

Mine is a standard 2.93 with a 4850, using an MX revolution with LCC 2.7.

Absolutely loving the iMac so far, been a MBP user for 3 or so years but this just leaves that experience for dead.
 
Mine hasn't frozen but I have had the Beach Ball of Death on the entire system once and I couldn't force quit.

2.93
1TB
4GB
4850

Ordered on 3rd March
Shipped on 10th April
Arrived on 14th April
 
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.
 
I just finished a marathon session of "breaking in" my new 3.06GHz 4850 imac, and am happy to say it had no freezing issues at all. I used in continuously for about 10 hours (lol) doing things like playing WoW, watching movies, listening to iTunes, and using ventrilo; sometimes, all at the same time. The GPU stayed relatively cool (max around 68˚C) and everything was flawless. Very happy :D
 
I have my new imac since the 14th and its been on since then. never had any freezing issues. well, until today. my system froze two times. first time while activated screensaver, second time watching lost.

hope we see a fix soon :)
 
smcFancontrol --> littler freezing

hey there,

Still think it has to do more with the northbridge and the powersupply than the 4850. The freezing has been erratic; sometimes I've had loads of stuff open: copying > 200Gb over the wireless network, parallels, iTunes, etc. and nothing happens.

Just safari, or just iTunes and it kills out on me. Every time the powersupply > 80C, the northbridge> 80 and the GUP > 80.

I've installed smcFanControl and it shows my CPU is ca. 32C... when I put the Fan 1500rpm.

Still trying to find some s/w to control the GPU fan.. Any ideas?
 
oturner said:
Got mine delivered 3 days ago now and it has been turned on since it arrived. And not a single lock up at all.

Lots of web surfing (safari and oepra), bit of work in lightroom, entourage email, a few skype calls (with and without video), a 6 hour session of WoW and several shorter sessions.

Mine is a standard 2.93 with a 4850, using an MX revolution with LCC 2.7.

Absolutely loving the iMac so far, been a MBP user for 3 or so years but this just leaves that experience for dead.
Click to expand...


Finally someone will good news. Actually a few on here are saying that there have been no lockups. That is good news.
 
ciakow said:
hey there,

Still think it has to do more with the northbridge and the powersupply than the 4850. The freezing has been erratic; sometimes I've had loads of stuff open: copying > 200Gb over the wireless network, parallels, iTunes, etc. and nothing happens.

Just safari, or just iTunes and it kills out on me. Every time the powersupply > 80C, the northbridge> 80 and the GUP > 80.

I've installed smcFanControl and it shows my CPU is ca. 32C... when I put the Fan 1500rpm.

Still trying to find some s/w to control the GPU fan.. Any ideas?
Click to expand...

Could be right. Mine hasn't frozen for a couple of days. The most intensive thing I have done is some stuff in iMovie with the real time rendering of transitions. No complaints. I'll have to try WoW again to see if it freezes. Nevertheless four freezes is four too many and it is going back within the 14 day exchange program.
 
Mine has frozen once, while playing Spore with nothing else running.

Maybe this is standard procedure and everybody knows this already, but fyi, tech support told me to hold power to turn it off, unplug everything for 30 secs, then plug in the power supply and keyboard, press power and immediately press and hold option + command (on left of spacebar, not right) + R + P. He said to hold until I hear the second chime (about 30 - 45 secs).

It worked and so far it hasn't happened again, and it even fixed some issues I was having with iPhoto. Keeping my fingers crossed
 
CPU Frequency

Thought I'd add to the thread... I got my 3.06 GHz ATI 4850 iMac on 4/17, and it has frozen up on me many times since 4/18.

One interesting (though perhaps unrelated) piece of information. If I click "About this Mac", it identifies the CPU as 3.06 GHz. However, if I boot the hardware test and select the hardware tab, it reports 3.60 GHz...

To anyone else experiencing these freezes, what CPU frequency are you seeing in the hardware test? (Hold down the "D" key on boot to check.)

How bout those of you with this iMac who aren't seeing any problems?
 
Motherboard

Not a computer whizz by any mean but had an ibook G4 that froze like that, on and off, with no particular reason. The problem turned out to be the motherboard. Went to a retailer who changed it and worked fine afterward.

I just thought I'd throw this out there.

Still waiting for my 2.93 with ATI 4850...gonna get it tomorrow. Hope it doesn't freeze (low tolerance for that kind of thing...especially since I moved away from PCs for that kind of problems:rolleyes:)

:apple: ibook G4
:apple: airport extreme "g"
 
I got my 3.06 GHz ATI 4850 iMac on 4/14 and it's frozen:

On 4/14 right out of the box while using Safari :(
On 4/16 while downloading Xcode :mad:
On 4/16 while running Apple Hardware Test
On 4/19 while downloading Xcode :mad:
On 4/19 while using Safari
On 4/20 while using Mail

Apple is forcing me to take it to the nearest Apple Retail Store. No replacement for me yet. Did the people who are getting replacements threaten to return it within the 14 day window and refused to pay the restocking fee or did they get Apple to declare it dead on arrival or what? Did they talk to a product specialist? Exactly how do you get a replacement?
 
jtourville said:
Thought I'd add to the thread... I got my 3.06 GHz ATI 4850 iMac on 4/17, and it has frozen up on me many times since 4/18.

One interesting (though perhaps unrelated) piece of information. If I click "About this Mac", it identifies the CPU as 3.06 GHz. However, if I boot the hardware test and select the hardware tab, it reports 3.60 GHz...

To anyone else experiencing these freezes, what CPU frequency are you seeing in the hardware test? (Hold down the "D" key on boot to check.)

How bout those of you with this iMac who aren't seeing any problems?
Click to expand...

could someone on a freezing 2.93 please try this and tell us what speed it will say?
 
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