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Summary (2815 total)

Processor (issues only)
3.06C2D: 648
3.33C2D: 59
2.66i5: 524
2.8i7: 964

Screen Size (issues only)
21.5": 208
27": 1987

Graphics Card (issues only)
9400M: 97
4670: 566
4850: 1532

Build Quality Over Time
View graphs


Batch (Week Built) (issues only)
09-39: 10
09-40: 8
09-41: 8
09-42: 30
09-43: 60
09-44: 42
09-45: 112
09-46: 211
09-47: 239
09-48: 198
09-49: 141
09-50: 284
09-51: 102
09-52: 128
09-53: 72
10-01: 75
10-02: 32
10-03: 27
10-04: 47
10-05: 38
10-06: 28
10-07: 34
10-08: 41
10-09: 31
10-10: 19
10-11: 21
10-12: 15
10-13: 15
10-14: 23
10-15: 10
10-16: 14
10-17: 10
10-18: 8
10-19: 6
10-20: 2
10-21: 5
10-22: 3
10-23: 3
10-24: 6
10-25: 5
10-27: 2
10-28: 4
10-29: 2
10-31: 2
10-32: 1
10-33: 2
10-35: 2
10-37: 1
10-38: 1
10-39: 1
10-40: 3
10-41: 1
10-42: 2
10-44: 2
10-45: 2
10-47: 2
10-48: 1
10-52: 1
Condition iMac Specs Source Comments
Flickering display 27" 2.8 Quad i7 1TB After 1-2 hours of use, screen flickered for few time, quick screen blackout occured, worked fine for few more hours and happened again.
Flickering display 27" 2.8 Quad i7 1TB Immediately after using my brand new iMac for about ten minutes I began noticing a white bar flashing horizontally at random. The problem progressed into the entire screen flashing black.
Flickering display 27" 3.06 Core2Duo 1TB Jan Sampermans Screen distortion/flicker somewhere random in the screen (feels like it is more in the lower part) that looks like a horizontal bar of about 2-3inches just popping in and out of the screen.
Flickering display 27" 3.06 Core2Duo 1TB Screen has flickering and going black.
Flickering display 27" 2.8 Quad i7 1TB 06awd
Flickering display 27" 2.66 Quad i5 1TB Thrice06
Flickering display 27" 3.33 Core2Duo 1TB robotkiller I could work for hours on the computer and then suddenly it would flicker randomly with a band of horizontal static bars about 3 inches thick momentarily or, alternatively, it would black out for a fraction of a second (happened every 5-10 mins).
Flickering display 27" 3.06 Core2Duo 1TB capricia Since this morning my display of my 27" iMac show the menubar in the middle of the display and above there are a lot of vertical lines in multi colors. Now I think this one is not a problem with the driver, I think there is a problem with the graphic chi
Flickering display 27" 3.06 Core2Duo 1TB jmczaja After waking the iMac from sleep I began to see this flickering problem. The machine was not hot whatsoever so I dont think the issue is heat related.
Flickering display 27" 3.06 Core2Duo 1TB newanalog
Flickering display 27" 3.06 Core2Duo 1TB artka I turned it on and the flickering and menu bar on the top portion of the screen is happening. It does this for roughly five minutes then it goes to normal?
Flickering display 27" 3.06 Core2Duo 1TB pschaf Seems to be getting worse. Quick flicker of bar at the lower half of the screen. No real way to reproduce. Have tried restarting and also sleep.
Flickering display 27" 3.06 Core2Duo 1TB pschaf Last night i watched a 30 min programme on BBC iPlayer and the 2-3 inch white lines kept popping up every few seconds horizontally across the screen. The screen also went black momenterally on 6 occasions.
Flickering display 27" 3.06 Core2Duo 1TB billybuds momentary black screen and the flickering. Seems to be very sporadic, won't happen for a few hours and then seems to happen every 20 seconds or so. Also the computer sometimes won't wake from sleep
Flickering display 27" 3.06 Core2Duo 1TB Gable31 Screen has flickering and going black. Have called Apple tech support to begin replacement process. Makes me question the life span of the LED screen technology.
Flickering display 27" 3.06 Core2Duo 1TB MarkyJ This morning it started to get worse and I also got he menu bar 2/3 down the screen, with the vertical 'barcode' look above it. The mouse moved off the bottom of the screen and re-entered on the top.
Flickering display 27" 3.06 Core2Duo 1TB Jorel (flickers, blackouts, line , displaced screen, ...) and the slow wifi issue
Flickering display 27" 3.06 Core2Duo 1TB JJBeans
Flickering display 27" 3.06 Core2Duo 1TB ichbinglitched mine flickered on first boot (on the "select your language" screen) a few days ago and started spazzing out completely
Flickering display 27" 3.33 Core2Duo 1TB mactoubib It is easily reproducible, by just activating the screen saver arabesque or activating TimeMachine.
Flickering display 27" 3.06 Core2Duo 1TB jonashh_dk
Flickering display 27" 3.06 Core2Duo 1TB QuickbookMDD this problem occurred nonstop upon first boot up. I had it plugged in a power strip with a 2 macbook pro's as well. I then put the 27" in a new power strip on its own with its own outlet with nothing else plugged into it and this problem hasn't reoccur
Flickering display 27" 3.06 Core2Duo 1TB frodo20 It happens mostly when I switch on after the display has been asleep for a while.
Flickering display 27" 3.06 Core2Duo 1TB stevo77 I then left it switched on over night and when I woke it from sleep this morning the screen started jumping up and down and displayed horizontal lines at the top and bottom.
Flickering display 27" 3.06 Core2Duo 1TB vegavnil
Flickering display 27" 3.06 Core2Duo 1TB McLaurin My screen (iMac 27") is fine UNTIL I go into a more graphics intense process. If I go into PhotoBooth, turn on some effects .. then BAM, there go the flickers. Flickers (plus screen going black intermittently) continue until restart, even if I quit
Flickering display 27" 3.06 Core2Duo 1TB Goldfrog The first thing I noticed was a single white line going from the top to the bottom of the screen as I shut down... noticeable on the blue screen. And it went black a couple of times.
Flickering display 27" 3.06 Core2Duo 1TB Peter Nuding Mine was fine for the first week now, but tonight it suddenly started doing this, and quite often so, i get about 3 to 5 of the pixel-garbage flickers per minute and the blackout every 5-10 minutes
Flickering display 27" 3.06 Core2Duo 1TB rmp09 I have the same flickering problem the moment I turned on the computer for the first time. The screen goes black for a microsecond at times as well. It has been intermittent.
Flickering display 27" 3.06 Core2Duo 1TB AppleUserSince
Flickering display 27" 3.33 Core2Duo 1TB Michael Hanscom occasional 'flickers' of static bars across the screen, sometimes the screen blacks out entirely for a half-second or so, and twice I've had the desktop 'shift/wrap' downwards, showing the menu bar about three inches below the top of the physical scr
Flickering display 27" 3.06 Core2Duo 1TB nickferrett
Flickering display 27" 3.06 Core2Duo 1TB gmaxflite
Flickering display 27" 3.06 Core2Duo 1TB AstonMartinDB7 I get the same symptoms rebuilt the OS several times following a driver problem for my printer and thought the flickering had gone but it is back with the lines and black screens!
Flickering display 27" 3.06 Core2Duo 1TB Lauting
Flickering display 27" 3.06 Core2Duo 1TB gustaven2000 Sometimes the screen completely blacks out for 2-3 seconds on intervals of 5-6 secs and the machine becomes useless.
Flickering display 27" 3.06 Core2Duo 1TB lordrobert after about 35min I got the first flickering. And it keeps returning irregularly.
Flickering display 21.5" 3.06 Core2Duo 1TB jogness I have a new 21.5" iMac (ATI Radeon HD 4670) and am experiencing the exact same flickering issue
Flickering display 27" 3.06 Core2Duo 1TB opeddler started about a week after i got mine
Flickering display 27" 3.06 Core2Duo 1TB StileselitS I got my new 27' and problems started immediately - screen flickering.
Flickering display 27" 3.06 Core2Duo 1TB mknez
Flickering display 27" 3.06 Core2Duo 1TB kawo After replacing the ATI graphics drivers the flickering is definitely gone on my machine.
Flickering display 27" 3.06 Core2Duo 1TB fredpontes I got my Imac 27 1 week ago and the problems started 2 days ago. I had the white lines and some blackouts.
Flickering display 27" 3.06 Core2Duo 1TB bfreebody The 2-3 inches of static appear at random intervals on the screen, I've also experienced the screen going completely blank from time to time.
Flickering display 27" 3.06 Core2Duo 1TB Brian Pratt I installed the 10.6.2 update last night and I'm seeing the horizontal bar flickering this morning. So the 10.6.2 update didn't fix everything, at least.
Flickering display 27" 3.06 Core2Duo 1TB Elroyofderovers
Flickering display 27" 3.06 Core2Duo 1TB Soaringoak dentical issue here... 2-3" bands flicker horizontally across screen randomly... happening less often is the complete blacking out, but it happens.
Flickering display 27" 3.06 Core2Duo 1TB dicktwi I restarted once and I haven't seen the problem again.
Flickering display 27" 3.06 Core2Duo 1TB SirR-G The first time it occurred was after running in Windows for a bit--the computer had gotten quite hot so I thought it may be a thermal issue. I noticed it almost immediately after rebooting into OS X at the gray Apple logo screen.
Flickering display 27" 3.06 Core2Duo 1TB Stephen Stark There was a similar issue with my MacBook Pro, but there were two settings for the display—when you switched to the low power mode (I think) it cured it. I don't think there are similar setting changes that can be made to the iMac.