Software :: Freaky Graphics And Freezing On IMac G4?
Sep 28, 2008
We're running an IMac G4, 700 Mhz, 768 Mb Ram with OSX 10.3.9. We have been having a problem with freezing/crashes for a long time, accompanied by distorted graphics and have been unable to get to the bottom of it. A screenshot of what happens is linked below. The pattern is that we will start working on something, then the graphics will become distorted in a small area. Then sometimes we'll get away with working for a bit longer, or sometimes it goes wrong right away. The graphics distortion spreads, and either the computer freezes and has to be restarted or we get the grey error box saying to restart. We've tried: adding more ram - it still crashes even with simple apps. using macaroni to schedule maintenance tasks unplugging hardware to see if there's a conflict. Have also tried clearing the PRAM on reboot, which seems to increase the chance of it working for a while.
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Aug 12, 2009
I have some serious problems with my iMac that I've been experiencing for a long time now, but they're really getting on my nerves now!
I have a 2006 20" iMac (the last revision of the white ones before the aluminum redesign), 2.16 GHz, 2 GB ram, 250 gig hard, 128MB ATI X1600 Mobility.
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Dec 6, 2014
I have a 2009 Mac Pro that is running 10.10.1. It is using a Radeon 4870 still from the factory. I have had a mostly flawless experience in the last 5 years with the system, but it has lately been displaying graphical problems and then freezing completely. After the display does quirky stuff that I am attaching in the image, I can only move the cursor. No other actions can be performed, and the only option I have is a hard shutdown with the power button. Usually after I do this, the machine will boot with the chime, but no startup screen will ever appear. It just sets blank. The only way I have found around this is to hold the option key, then boot to my primary drive.Â
I notice this seems to happen after the computer has woken from sleep. But, the issue originally appeared for the first time after updating to the newest Logitech Control panel for my mouse. I thought it was that, so I removed it and am no longer using that at all. The issue still exists.Â
Here is an image of what the screen typically does.Â
Info:
Mac Pro, OS X Yosemite (10.10.1), (Nehalem)
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Sep 1, 2010
Just got a refurbished 27" Imac I5 with the Radeon 4850 yesterday.This happened twice yesterday, so today, when I powered on I had my blackberry ready to record.As you can see theres a large green band (yesterday it was accompanied with a red one) that spans the vertical aspect of the screen. The bars disappear after 30-1min.I've tried searching and haven't found anyone with a similar problem. http://www.youtube.com/watch?v=mGK3LYb23mc
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Sep 30, 2006
currently i have a blackbook and imac core duo, 17 ". My macbook beats the imac in everything except graphics. Before i got my imac i seriously considered a g5 dual 2.0, but the money wasnt there. I see an apple refurb dual 2.0 for 1599, and im sure i cud get one a lot cheaper used here or on another board. How much of a performance increase will i see IN APERTURE going to the PM, if any? i would need a good increase to justify it, and eve then im not sure my parents would be ok with me spending a few hundred bucks to upgrade
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Sep 16, 2009
I recently read somewhere that I can actually change the graphics card on my mac. If so where can I buy the ATI Radeon 4850 graphics card? and how much will that set me back?And could I get this upgrade done by my local nextbyte retail store?If it is possible to have nextbyte upgrade my card would they send it off to apple?
I really just need this card so I can play aoe3 on all settings high and be able to handle games like cod4, quake and all those graphic hungry games.
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Nov 15, 2009
I just installed Windows 7 on my 27" i5 iMac, and it was working fine until just now. It froze completely (I could move the mouse around) for a minute, and then it unfroze.
I kept using it, and then it froze again, but this time I had to restart by holding down the power button. It just happened again, and I had to restart again.
The only thing I have running is Chrome, and this is a fresh install. What's going on?
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Feb 28, 2012
I am getting very frustrated. I just upgraded my hard drive to a seagate 1tb hard drive and since I've done that I upgraded to lion and now my computer freezes all the time. I don't have the start up disk since I upgraded online. What can I do?
Info:
iMac, iOS 5.0.1
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Nov 14, 2010
I am having issues with Safari freezing on my mac. I am running Safari 4.1.2 and running operating system 10.4.11. I am not sure if this is correct but i managed to sample the page by going on the Activity monitor.
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Apr 23, 2009
Anyone have a freezy iMac with less than 8GB of ram installed? I made a brief attempt to search the forums for an answer to this, but was unsuccessful.
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Jul 29, 2010
Apple has been kind enough to replace my few week old iMac i7 with a new, refreshed model.I've heard that the graphics in the new iMac are discrete and separate from the motherboard.Does this mean the graphics card will be replaceable, albeit in a rather clumsy way?
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Feb 26, 2009
I'm thinking of getting myself a Mac. I have not decided on much more than this. Well, a few things have been sorted. I'm either going for a MB 13" as a nice little e-mail and surfing companion or I'm getting the next iMac. If I would go for the latter then it would have to serve as a gaming platform as well and preferably for a couple of years.
Since gaming will be a good part of the duties performed by the dear little thing I must ask what we could expect in terms of graphics cards?
I'm aware that Apple often use last generation GC in their computers so a GeForce GT 120M is probably out of the question.
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Jun 5, 2009
will a ATI Radeon HD 2600 PRO with 256MB in an imac or a 9600 gt m 512 in the umbp be better?
strictly the graphics cards, on gaming performance.
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Dec 8, 2010
I purchased a 24" iMac in fall of '07 and up until have had no problems at all. Let me describe the problems I'm having now and maybe someone can tell me what to do to remedy them.
A couple weeks ago it started freezing randomly. The mouse will switch to the beach ball and just spins endlessly. I can move it around but can't really do anything other than that. I have to do a hard reset to get it back to normal. Sometimes a couple programs are open, and sometimes none. It seems like it happens often when I quick switch from one user to another. It will switch, work for awhile, then freeze.
Now, no big deal, annoying, but whatever. But, the other day after doing a hard reset it revolted into a white screen with a flashing folder with a question mark. I did some research and found that I needed to repair the startup disc using the snow leopard disc. I did that and it allowed me to boot it back up normaly but didn't really solve the freeze up issue.
So, that just happened again, so I'll have to boot it up with the disc again and repair the startup disc when I get a chance. It's really beyond frustrating now.
I have repaired all permissions, updated all firmware, made sure the drive isn't full, pretty much everything short of backing up and wiping the drive and reinstalling the OS. Is that what I need ro do now? I mean, I know I need to, but is there something I can do to remedy until I can get around to doing that?
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Jul 21, 2006
I have an old iMac Rev A (or B?) and it is constantly freezing. It freezes in OS 8, 9, and 10.3.. but most frustrating is that it also freezes while trying to install an OS. So right now it does not have an OS installed because of that. It will not boot up to my OS 9.1 disc.. but it will boot up to it's original 8.5 disc and a 10.3 disc.. However it always freezes near the beginning of the install process (often before it even writes to the HDD). I tried taking out the old RAM and leaving it with just the one (new) 256MB chip and that didn't work.
It was freezing before with only the old RAM so. I guess it's not the RAM. I have an identical iMac that doesn't choke on anything (never freezes) and it only has 96MB of RAM. I don't know what else I can do. I'm trying to use XPostFacto to put 10.4 on this thing (it's possible, I want to try it out at least) but it won't get through the first OS install and if it does, it won't get through the second (10.4). Even more frustrating is that I don't have any diagnostic software such as the Apple Hardware Test because the original iMac didn't come with any.
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Oct 18, 2008
Is anyone else having the problem with iTunes 8 where your iMac freezes completely (only the mouse will move but you can't click anything)? I started having this problem after upgrading to 10.5.5 and iTunes 8.0.1.
Apple support discussion related to this: [URL]
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Jul 3, 2010
I need your opinions; since the 10.6.3 update my iMac has begun to freeze to a blank screen. I think this may be a sign of a dying logic board, however I question this as I don't have the freezing problem with 10.6.2. Picture of blank screen attached.
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Mar 22, 2012
I recently restarted my iMac G5 as I had not restarted it in a few days and now when I attempt to turn the computer back on it never makes it past the gray "OS X" screen, where I guess it loads the operating system? The system never freezes and I can move the cursor but it will not boot past and eventually goes to sleep. It is the 17" iMac G5 PPC.
Info:
iMac, Mac OS X (10.4.6)
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Apr 15, 2012
My Imac 2011 is freezing more and more often and I can't identify any pattern or software that causes it.
Info:
iMac, Mac OS X (10.7.3)
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May 8, 2012
For some reason my iMac has started to freeze everytime it goes into screen saver mode... I have to turn the computer off to reset everthing. This error message then popps up:Â
Interval Since Last Panic Report:Â 8270 sec
Panics Since Last Report:Â Â Â Â Â Â Â Â Â 2
Anonymous UUID:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 300F47A0-F640-4693-97D3-CA4652D19A36Â Â
Tue May 8 10:02:26 2012
[Code]....
Info:
iMac, Mac OS X (10.6.8)
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Jun 2, 2014
Why my iMac (27-inch, Mid 2011) has suddenly began randomly freezing up?All working great since I got it but recently I am having a consistent problem with it ceasing up. As a result I took action and restored it to factory defaults over the weekend thinking this would resolve the problem but unforuantely after 2 days without issue the problem has re-surfaced.Â
EtreCheck version: 1.9.11 (43) - report generated 2 June 2014 20:53:38
BSTÂ Hardware Information:Â Â Â Â Â Â Â Â Â iMac (27-inch, Mid 2011)Â Â Â Â Â Â Â Â Â
iMac - model: iMac12,2         1 2.7 GHz Intel Core i5 CPU: 4 cores         12 GB RAMÂ
Video Information:Â Â Â Â Â Â Â Â Â AMD Radeon HD 6770M - VRAM: 512 MBÂ
[Code] .....
Info:
iMac, OS X Mavericks (10.9.3)
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Sep 29, 2010
iam looking to update the graphics and memory for imac from late 2009. where i can find all this
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Apr 9, 2009
I recently had the 2.8Ghz 24inch imac with 2Gb memore and 320Gb hard drive with the ati graphics but had a display problem so returned it but my current pc is so slow i need a new computer now so i'm looking at the 24inch 2.66Ghz model but what sped difference will i see in sped from 2.8-2.66 and will the nvidia graphics be better, worse or the same as the recent ATI graphics and is the memore a bigger improvement with now 4Gb ddr3
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Oct 7, 2009
with this talk of new imacs and mac mini's I thought it would be fun to speculate on what gfx card they may choose to include in the high end model. After a little searching around on what mobile cards are around my bet is on the Geforce GTS 160m. They seem to be going almost exclusively with Nvidia with the exception of the 4850.
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Mar 15, 2010
I have a question about Mail. Whenever I try to forward an email, it forwards the text, but not the graphics! I am using Mail, Version 4.2 (1077). I've gone through the preferences, and cannot find a fix for this.
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May 4, 2010
I was wondering if anyone could tell me how/if it is possible to upgrade my iMac 24" with an integrated nVidia Geforce 9400 to the dedicated GT 130 with 512megs. The nVidia website ([URL]) claims that the 24" model offers two potential upgrades (with one being the 120 and the other the 130), but doesn't specify exactly how this works. Does anyone know how to install this card? and what it would involve? I've heard the iMac is all but unupgradeable, but then I saw that claim on the nVidia website.
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May 10, 2010
How can I tell?
24" 3.06
NVIDIA GeForce 8800 GS
Late 2008 I think?
BTW, the reason I am asking is because I am interested in this new Steam software that Valve is putting out and I want to know how well my Mac will do with the games.
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Jul 12, 2010
Okay, everything's been working fine (except for that annoying high-pitched noise) but recently AirPort or whatever all that is has been really, really annoying.
All throughout today and yesterday I've never had a good connection, I'm right next to my router (it's not a problem with the router) and when I'm connected via Ethernet it's fine but I can't always be connected like that.
I'll try loading a website then the whole connection drops, multiple times. And when it's fixed, it happens again. and again. It's really quite annoying.
Also, I know NVIDIA GeForce 9400m is a GPU and all, but is there any way to upgrade the graphics? 9400m is absolutely terrible. Horrible. I can't believe they even put them in there to begin with. My brother's $500 dollar laptop can almost do better.
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Jul 27, 2010
I started a thread a long time ago on using the iMac as a video editing machine, and the general consensus was that the only thing holding back the iMac from being an absolutely fantastic editing station was the graphics.
Now here's a question for the pros: now that the graphics have been updated for the 27inch (from Radeon HD 4850 to 5750) are some of these problems solved?
I'm planning on doing a lot of work in Avid, Final Cut, and Pro Tools, and I want to get to know After Effects well.
Will 8GB of Ram be enough for me?
Most of my editing will be off of footage from my 5D Mark ii.
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Jul 14, 2009
Our 1st gen 24" iMac was giving us Kernel Panics under Tiger 10.4.11 recently it all started two months ago. We took it into the Apple store for a Cleaning and fresh install of Leopard.
When we received it back it locked/froze up immediately, forcing a hard restart. When I called the store they said one of my sticks of ram was not techinically bad but still suspect. This is what I did after that call.
1. Checked the ram physically (the Apple store had placed my 512mb Apple ram stick in slot 0) which I thought very strange.
2. I corrected the ram, meaning I put the 2gb (suspect) stick in slot 0 and the 512 Apple ram in slot 1. Things were better it would take 10-15 minutes of use before locking up not 1-2 minutes.
3. I placed a new stick of Crucial (2gb from OWC) in place of the supect stick. that has had ZERO affect, our mac still freezes.
4. I pulled out the 512mb Apple (Micron) ram and replaced it with a 1gb Micron stick from OWC and that gives us roughly 20-40 minutes of time befroe freezing.
The software is up to date, I've max'd out the ram (new ram per Apple's request) and all we have running is iTunes in the background to stream to AppleTV and a few tabs of Safari open when this locks up. Right before it freezes we notice lines arcoss the application windows almost as though there a distorted pixels. When we took it in (running Tiger) the Apple Tech did check the drive and boot from their network and said our HD was not the issue, but it wasn't up long enough to cause kernel panic.
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