IMac :: Bad Graphics Board - Screen Messed Up?
Sep 10, 2010
Am having a problem with the screen getting "messed up" is the best way that I can describe it. Happens with all different apps running but nearly always shows up when trying to edit a photo in iPhoto. When I make an adjustment there (like sharpening) the photo will turn all red and the system will lock up. This does not always happen, but just most of the time. In other apps, it can result in just messing up that page or the entire screen. I can replace the Graphics card myself if that is what the problem is but is there any way to test it before laying out the $250?
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Jul 8, 2010
My iMac chimes when I press the start button but the screen doesn't come on. It's making a whirring noise so it's doing something. There's a DVD in it but it won't come out when i press the eject button on my keyboard. The iMac also doesn't show up on the network of my MacBook which it usually does. I was having a few problems earlier this week with the screen doing strange things - occasionally turning off, then coming back on. It was suggested that it might be a dying logic board but I tried a Apple Hardware Test this morning but it said no problems found. I have some files backed up but desperately need to get some recent documents off it [I know, I should have backed it up more often ]. Is there any way to get access to the files on the hard disc?
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Apr 3, 2012
I have the latest Mac Pro with a Cinima Display, and, yesterday, I have bought a Thunderbolt Display. Unfortunately this new display does not work with my big mac. Has anyone a clue if Apple or a third party supplier is offering or will offer a graphic board supporting Thunderbolt Display or rather an adapter doing so?
Info:
Mac Pro (Mid 2010), Mac OS X (10.6.8)
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Mar 19, 2010
I installed USB Overdrive (a program), I clicked on restart and my iMac never got up. When I start it, the HDD and fans do work. But there is no boot sound, and when I change sound levels, I cannot hear it. I think, it never makes it to OSX. It does not load the OS. I dont think it is Graphics card (HD2600) failure.
When I try to reset PRAM, nothing happens. Usually I must hear it restart again with loud boot sound but it never happens. Also my keyboard does not seem to work, as the CAPSLOCK button does not light up, when pressed. I changed RAM to different moduls, still the same. I checked the iMac RAM on a different computer, it works. Maybe USB Overdrive killed the USB slots? As my USB keyboard does not seem to work
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Sep 3, 2010
I have been having problems with my Macbook pro(5 months old) screen lately. The screen goes all pixelated and messed up, please see pictures. I don't know what is wrong and surely this can't be lag as my laptop is a pretty good model and from the most recent update.It does this randomly ever now and again but it is very concerning to me. Should i consider asking for a new mac/refund.....
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Jan 10, 2011
When I take a screenshot the sound is made and it saved on my desktop, all fine, but the image is fuzzed and all messed up, even the thumbnail looks wrong, I don't know why this is, or what can be possibly causing it.
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Jan 5, 2011
Why does Minecraft look like this on my iMac? Is my video card messed up or something? It all flickers and changes as I move and look around. And it's not the mods, it did this stock, before I install the MrMMods.
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Sep 1, 2009
Apple's default audio drivers (for Windows) for the built-in speakers on the iMac make them sound horrible, they have way too much bass, whereas in OS X they sound great. Why is this?
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Oct 31, 2009
Before my new iMac took 2 minutes to boot up and I re-installed SL and it is now fixed but now, like the 27 inch, the videos on youtube are really choppy and the sound is messed up. It only happens occasionally and is fixed with a restart and is really annoying. Does anyone know how to fix this?
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Dec 24, 2006
I had a fault where my powerbook would not start up. Apple replaced the logic board and now the screen is a very strange colour and flickers.In the video I use the hot corner and the dog changes to the right colour but the windows do not. its very strange.I will have to take it back to apple in the new year but is there anything I can do to improve the image. Its so hard to look at like this.
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Mar 18, 2009
First Mac Attack, must say I like working on these things, I'm working on a friends late 2004 ibook g4 that seems to boot up fine, but with lines across screen exactly like this one found in google images. Most of the info I've come across seems to point to a logic board failure, but also have seen posts relating to LCD failure. wondering if any here have encountered this and what eventually found was problem. This ibook is litterally on the verge of just being replaced anyway. I'm only working on it because It's a first, and believe the education is valuable.
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Apr 17, 2009
I'm somewhat new to the forums, and found a really good deal for a brand new macbook air (rev.1). I'd like to know if it is possible to replace the logic board in my macbook air with a newer, nvidia-gfx based logic board. As in, will it fit, does the same power supply run it, same peripherals (airport, keyboard, etc) work/interface with it, etc?
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Oct 31, 2006
I purchased a 1.33 G4 14 inch ibook exactly 13 months and eight days ago. The logic board is toast as of today. i.e. flashing colors and flickering screen. I took it back to where I purchased it and many other apple items {powermacpac it Portland Oregon}...and I was told that it was a $600 dollar repair...unbeleivable...I now have a $1050 dollar paperweight. I called apple support to find out if they would fix the computer since we were so close to the warranty end date. n the end...I shoulda bought applecare.
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May 8, 2008
I'm looking to get this titanium powerbook but it has a broken screen, possibly bad backlight? I can get it for a good price and I would love to have it to replace my ibook. I don't know the specs for sure but I am positive I think it's the DVI version since it has the keyboard that looks like the ibooks(same placement for the keyboard release latches).The guy said it worked fine on an external monitor but just recently he said it won't boot now and it now makes a high-pitched whining sound. Anyone know what that is? I'd like to use it as a headless mac until I locate a new screen for it.
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Apr 21, 2012
8 month old MBP 15" i7 4GB RAM 500GB HDD, took it in last week to get the logic board replaced (computer wouldn't boot up) and now it is running fine, although at random times the display will go haywire and I am forced to restart the comp (manually). Why is it doing this? Do I need to update something? Is it related to the new logic board at all?
Info:
MacBook Pro, Mac OS X (10.6.8)
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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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Jun 26, 2009
As the title implies, I've got 3 year old G5 iMac sitting as a paperweight at my desk. At least half that time ago the logic board died and I was quoted a repair bill of around $900. I couldn't go with it, but I couldn't decide what to do with it either. I now have to get rid of it and since I know that this model had lots of issues with logic boards I'm hoping some of you will have some good advice.
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Oct 22, 2009
With the new iMacs finally with us, I wanted to get myself one of them and, while I am at it, maybe replacing my current PC as whole. I tried to find a good comparison online, but somehow Google didn't return anything useful. So...
Can anyone tell me how the new iMac's GPUs against my "old" GeForce 8800 GTS?
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Nov 7, 2009
I got a mac mini out of warranty (core 2 duo 1.83 ghz) that just died on me. I went to the apple store and they sent it in for a diagnostic. They confirmed that the logic board is dead and will be around $350 to replaced. I'm still weighing my options and was wondering if anyone can direct me to a site that sells replacement logic boards to see if I'm better off doing the repairs myself?
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Mar 10, 2012
My IMac would turn on I would hear the fans spin/whirl but know "ping" noise to tell me it was powering up. Screen was dark.So I replaced the power board. This did not work. So now I've been told that the logic boad needs to be replaced.
Info:iMac G5 (17-inch)
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Apr 17, 2012
Had to change the mother board on my iMac. After the repair found that my time machine back up was lost and now I have lost all back up from prior change, ie 3 weeks ago.
Info:
iMac, Mac OS X (10.7.3), using wireless time machine
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Apr 23, 2012
? the logic board of my iMac failed. It was replaced by Apple, but they couldn't tell me why this had happened. Looking for answers to avoid future problems.
Info:
iMac, Mac OS X (10.6.8)
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Dec 3, 2007
To begin with, I own a MBP Intel Core Duo 2.0/2 Gigs of ram. I've had this laptop for roughly 18 months and do not have Applecare. I take extreme good care of all my stuff and still baby it till this day. I have NEVER bumped the laptop against anything, accidently dropped it too hard on the desk or anything similar along the lines. Essentially, looking new. About 2 days ago, I was working with my laptop and I closed the lid which made the computer go to sleep. Everything all normal & no appearance of anything! Around mid-night, I opened the MBP's lid to check my email. (Computer awakes, I can hear the Superdrive awake) then boom, a blank screen. The monitor did not turn on then burn out, it was always off. Similar to if you dim your monitor all the way. I can still see the desktop however, there is no light. If I take my flashlight and point it to the desktop, I can see everything. I called a few places, and they described it is the Inverter board or could be the fluorescent bulb that is damaged. My reasoning for the inverter board is faulty is because when a fluorescent bulb goes out it, it tends to flicker at first. Researching this forum, I noticed most MBP users LCD's that go out, they flicker but, mine just went out and I can still see the desktop. Where can I order the inverter board? I tried [URL] but they're out of stock. I will change the inverter board myself because it will be quicker and I need to use my laptop. It is currently hooked up to an external monitor until I can get this fixed.
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Oct 4, 2009
OK, so I did something truly stupid. I managed to splash water on my macbook. I hit a small cup of water (about 2 oz) with the end of the computer with the CD drive. It immediately shut off. The next day, I set it outside to dry in the sun and by midday, all was well. It functioned just as it always had. This continued through last night. This morning, when powering on, all I got was a white screen (no tone). After doing powering up while holding command-alt-r-t (a sequence I found on a help board), it will now make the tone, but maintains the white screen. I am slowly accepting that I am an idiot and the computer is probably a loss. Multiple internet searches have suggested it is either the logic board or the hard drive (at the very least). Any ideas?
My dad is a computer programmer, but does not use macs. He looked at it and just shook his head. I am very non-computer savvy (I know how to turn it on). He did say if it is the logic board I should be able to retrieve all of my (non backed up) files on the hard drive. He said he really doesn't think that it is the hard drive.I also am learning that it will probably be cheaper to replace than to repair. However, I am willing to try anything which might help.
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May 5, 2010
I have a 2007 Macbook Pro with the Nvidia 8600M card, and my screen went out. I had my logic board replaced, but my computer just doesn't feel the same. Should I be worried of any other issues?
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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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Mar 3, 2008
My 17 inch iMac G5 1.8ghz seems to have died. For a while it's been refusing to power up and then powering up randomly but now it wont power up at all. I've looked on the logic board and reset the SMU etc but I can only get the first LED to light up. I think this means the logic board has died. Is it worth replacing the logic board and can it be done easily myself? Or should I just bite the bullet and pay out for a new alu intel iMac? I'm in the UK btw, any ideas on logic board prices?
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Jul 13, 2009
My G5 iMac is getting a new harddrive, meanwhile I had to fire up my older front, slotload IMac (G3), it has 10.3.9 installed and 250GB external harddrive. Unfortunately, this little iMac only has 30GB on board memory. After the 10.3.9 install/upgrade I only had 4GB of available memory. I have looked through just about every file/folder to delete duplicate/unnecessary files but cannot find what has used up the memory. I have a LaCie 250GB external drive, partitioned in three sections at 78GB each; can I install OS X on one of the partitions and work from that for my Photoshop, Illustrator and other graphics software projects?
A few minutes ago a message came up saying that my memory is close getting full and should clear some files to make room. This iMac (slotload) is only rated for 512MB RAM max at 133-333 speed, two 256MB boards (max). Is there a way to get around this and add more RAM, a way to boost it to768MB RAM or even 1GB RAM and still have the system work and utilize the extra memory? Do I need the adapter to run a mirror monitor on the slotload (a 17" flat panel, mac compatible, ViewSonic brand. I have the software to set up the mirror)?
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Sep 21, 2010
Have an early 20" iMac G5 and the Hard drive started to squeal and then crashed. Tested dive in another iMac and it is definitely bad. Installed new hard drive and the system fails to find it. Formatted it on the other iMac and reinstalled but it still is not seen by the system. Everything was running very well until the drive failure. Took it to an Apple approved store, paid the $60 to be told that the Mother Board was bad. It is hard for me to believe that a disk failure could cause a Mother board failure. 2- 20" iMacs, a 24" iMac, and a new 27" iMac (not yet out of the box.)
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