Apple Issues Fix For 27-Inch iMac Flickering

If you have a swanky new 27-inch iMac and have been experiencing problems with a flickering display, Apple has an early Christmas present for you.
Almost as soon as Apple started shipping the hot new 27-inch iMacs, the support discussion forums on Apple.com started filling up with complaints about flickering and image corruption in the displays. Rumor has it that Apple even slowed down shipments of the units to correct the problem.
But yesterday afternoon, the elves at Apple released a 683 KB patch to address the problems, available for download from Apple’s support site (and it should pop up via Software Update for afflicted systems, too). The patch updates the firmware on the ATI Radeon HD 4670 and 4860 graphics cards that come with the 27-inch iMacs.
The new 27-inch iMac was recently benchmarked as one of the fastest Macs yet, which have made them a popular item even with power users. The desktop computer is so popular that Apple even issued an apology for the shipping delays on the higher-end models (as long as two weeks) as they scrambled to catch up.
enocheed
January 09, 2010 at 9:54pm
Sadly it has not fixed the problem. I think the problem is heat related and is unfixable unless there is an update to the video card. Here is the issue. When you use the cd rom drive for extanded periods the component next to it might over heat. Be it the video card controller for the screen or some time of video buss component. The odd part of this is that it only affects the primary display. I gat a monitor attached to my 27 I mac and that has no lightning glitch that the main monitor seemed to be having. Refresh slow down or one to two second screen going black and back to normal. I burn a cd like the night before, I go to sleep leaving my mac on and in the morning i weak up to this. That the screen is screwing around like this. Than it goes away by afternoon its all fine. Might I ad I haven't used cd rom drive all day. What if i were to listen to cd all day? What's going to happen than my I mac blow up? Scared to try but have to. Rather break it this way than to all ways wonder about it. I guess ATI cards are crap or just need more than passive cooling till the 32 micron shrink.
rigging
December 23, 2009 at 12:15am
Nice,My question has been resolved, thanks to share. Rigging hardware|
sarareid
December 22, 2009 at 8:18pm
A very welcome firmware update. Granted, I've only clocked three hours of machine time but the flickering seems to have stopped. On my machine I'd get black on the bottom half and maybe white or green dotted distortions over the video towards the bottom of the top half.
wii spiele
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