IMac :: 20" (2006) Insomnia - Wakes Up Randomly With LCD Off
Jan 4, 2011
I have an "Early 2006" model iMac that has been acting a bit funny lately. This is the white 20" Rev A, first-of-it's-kinda Intel Core Duo iMac. Now it's been running pretty well since I got it almost 5 years ago. But lately some of it's activity is puzzling me. Late at night I'll be working on my MacBook and suddenly the iMac will awake from sleep mode. The fans whirl, the DVD drive makes it's usual noises, and the screen remains... blank. Seconds later the sleep light turns on and the computer returns to sleep mode. This happened again this morning when I was sitting at my desk.
I have no idea what's causing this, however it's slightly different behavior to what has happened months ago. Previously the iMac would wake up by itself in a similar fashion, but it's screen would be on and it would act like I pressed the space bar to wake it up. These activities happen randomly, and it's not too frequent, but often enough for me to be confused about this whole thing. I thought that maybe an IR remote was sending out a signal to the iMac. The iMac faces a small window in my room, so the chances are slim that this is the case, I believe I've turned off the IR sensor on the iMac, which may have solved the issue, but I have since turned it back on since I use the remote regularly. Unless there's some IR beam shooting around in my room I can't think of why this would be happening. The machine is of course out of it's AppleCare, so I'm wondering if any of you have ever heard of or experienced this problem. Any help would be great, thanks!
Detailed specs:
20" Intel iMac Early '06 Model
2.0GHz Intel Core Duo
Upgraded 2.0GB of DDR2 RAM
ATI x1600 w/ 256MB of VRAM
Upgraded 1TB WD Green SATA HD
Stock DVD-RW
Stock Wireless/Bluetooth
Mac OS X 10.6.5
View 2 Replies
ADVERTISEMENT
Mar 30, 2009
My iMac is waking up from sleep in the middle of the night. The only clue to what is going on is that is says the wireless keyboard has lost connection.
View 3 Replies
View Related
Dec 10, 2008
My MBP sometimes wakes up from sleep for no apparent reason. I have it set up in a closed lid/external monitor mode, with a bluetooth keyboard and a wireless usb mouse. To make sure it's not USB activity, I unplugged all USB devices, and switched the USB mouse off. Also made sure "wakeup on ethernet access" is disabled in system prefs, and software update is turned off. Looking at the console, it woke up with a reason:
Wake reason = EHC2 OHC2
Do you know what that is?
Below is a system.log snapshot and console messages when it woke up. Any ideas about what caused it?
System.log:......................
View 4 Replies
View Related
Sep 3, 2009
My MacBook Pro has been waking up from sleep at some of the most random times. Usually it will wake up about 5 minutes after I put it to sleep, and if I'm lucky it will stay to sleep when I try again. Sometimes it will even wake up 30 or 45 minutes after I put it to sleep. Currently, I have it connected to an external display with the laptop screen closed at all times. It is running a fresh install of Snow Leopard with barely any apps installed yet (mainly just iWork and Microsoft Offiice). I was having the same problem when I was running Leopard, thats why I did a fresh install. So this eliminates a software issue.
This has been happening for a few months now, but it has just started to become a problem for me. When I was running Leopard I did not have an external display. It was waking up at random times without anything connected to it (no display, USB, or MagSafe connected). I would be sitting next to my Mac, and all of a sudden, I hear the Superdrive wake up sound. I searched and found a thread similar to this, but hopefully it will not have the same solution as the members of the following thread had: "I had this problem with my Macbook. The fix was a logic board replacement." [URL] I have also attached a screenshot of my system.log in Console. I opened up console as soon as my MBP woke by itself. Hopefully someone here will have some idea what all the stuff in console means or maybe be able to narrow down the problem.
View 9 Replies
View Related
Oct 6, 2010
I've tried all sorts of sleep methods: lid, button, start menu (bootcamp) and even on mac osx. However, it will randomly wake at times which makes it frustrating because I don't want to always shut off my laptop. Anyone have this issue?
View 3 Replies
View Related
Nov 8, 2009
Since installing Snow Leopard, I have noticed that my Mac will wake randomly. It does not happen all the time, but it does a lot. I have tried to reset the PRAM and it did not help. The "Wake for network access" option in Energy Saver is unchecked. Any ideas?
View 1 Replies
View Related
Mar 27, 2012
my Macbook running OSX Lion will NOT go to sleep or to that matter shutdown.
Symptoms:• When lid closed, macbook goes to sleep (I know this by the sound of the fan shutting down; and then after aprox. two seconds the fan starts working. When I open the lid the macbook just lights the screen and doesnt wake up as it never went to sleep.
• When shutting down the macbook truns of and then similarly the fan shuts down for like 1/2 a second and then boots up again; ie.restarts.The only way I am able to shut down my macbook is to press the shutdown button for 5 seconds, force shutdown.
System Information:Macbook 13-inch, Aluminum, Late 2008Processor 2 GHz Intel Core 2 Duo | Memory 6 GB 1067 MHz DDR3 | Graphics NVIDIA GeForce 9400M 256 MB | Software Mac OS X Lion 10.7.3 (11D50) What I have tried to do to solve this problem:• Shutting down• Removed and reinstalled battery• PRAM Reset• NVRAM Reset• SMC Reset• Checked Hardisk and fixed it
[code].....
Info:
MacBook, Mac OS X (10.7.3), Late '08 Model (First Unibody)
View 14 Replies
View Related
Jul 1, 2009
This has only just started yesterday, When I click on the Blue Apple on the top left corner and then click on "Sleep" my Mac goes blank then wakes up again within seconds.
View 2 Replies
View Related
Nov 30, 2009
I can't find any other thread out there about this. I was wondering what the fix for when my iMac 27 c2d comes out of sleep and pinwheels for about 4-5 sec. It only started doing this when I updated to 10.6.2
View 4 Replies
View Related
Apr 22, 2010
I have a 27" iMac purchased last January. Every time the computer wakes up, the display activates with normal coloring but after a second "shifts" into a different color profile with a blue'ish tint.
All software updates have been applied. I've reformatted the computer twice since the initial purchase. Problem persists.
I'm well aware of the yellow tinge problem with 27' iMacs, but based on my research of past posts the blue color shift has only been a problem with Macbooks.
View 2 Replies
View Related
Dec 5, 2009
I have a 24" 2.66 bought in Oct 09 and it is current with updates. No matter what I do it will not stay asleep, even when I manually put in down with the power button it wakes a short time later. Is there no solution to this simple problem I know many experience?
View 4 Replies
View Related
Feb 25, 2010
I let my iMac sleep when not in use. I have a logitech harmony 550 remote control for my TV. If I press a button on the logitech remote it wakes up the iMac. I went to the bluetooth devices connected and it only shows the mouse and keyboard. How can I correct this issue. The remote control is infrared not RF. My iMac is a 27" Quad Core i7, magic mouse & wireless keyboard.
View 3 Replies
View Related
Jun 12, 2009
I recently bought a 1st generation 500GB Time Capsule as I don't need the dual-band functionality of the 2nd Generation. Since setting it up I've been having a problem, whenever my iMac sleeps from a long period of time the backup is delayed when I wake the computer up. This would be less irritating if the backups continued like normal after the computer was awake, but I have to keep re-starting the backups manually to get the backup schedule back on track. This is especially frustrating as the whole point of the system is so I don't have to worry about manual backups.
View 1 Replies
View Related
Oct 24, 2010
I just found this environmental report for the 27" iMac's on Apple's web site, which lists the amount of power they use when off/asleep/idle.
There doesn't seem to be a similar document for the Late 2006 iMac's. I'm just wondering if anybody knows the power consumption stats for the older iMac's (the 20" model in particular) - I'm interested to now how the newer models compare as I'll be buying one soon.
View 4 Replies
View Related
Nov 5, 2010
On my white iMac (Late 2006, 20" C2D 2.16ghz) I've almost filled the puny standard 250MB HD and am planning to have an authorized repair shop replace the drive. (They quoted me $30 plus the cost of the drive -- is that a good price?)Question: what drive should I put in there? I'm planning to go with a 1TB/7200 RPM drive, but can I or should I go bigger? Faster? Which brands to use, or to avoid?
View 1 Replies
View Related
May 8, 2009
Recently my iMac had been experiencing problems, I took apart and checked everything and put back together. Problems were gone but the screen suddenly started gradienting from brighter on the top to darker on the bottom. Brightness overall is also lower now.
My question is what can be creating this? The black tape that was around was ripped, I've heard it's creating static isolation, can that be it? Also I possibly pulled power cord too hard, can it be possible that display is not getting enough power?
View 1 Replies
View Related
Aug 4, 2009
Let me start by saying I have swapped the ram in the computer and the problem persists. I've also tried resetting the PRAM. I have unplugged all devices except the keyboard and mouse. I have reformatted and installed OS X Leopard, Tiger and Snow Leopard. I have even encountered this issue while the computer was running from the install disk. I'm pretty sure software, ram and third party devices can be eliminated from the possible causes. The computer continues to run after the screen goes black. I am connected to it right now using screen sharing, so I know the computer is still working. Putting the computer to sleep and then waking it up temporarily brings the screen back until its next random blackout. I have opened the computer to replace a dead HD, so I suppose it is possible that I knocked something in the process, but I did that back in December and the problem is a relatively recent development. I would really prefer to fix this myself, if I could only figure out what the problem is.
View 6 Replies
View Related
Oct 20, 2010
I'm trying to make an educated guess regarding the usage experience of the base 11.6" Air by using my 2006 17" iMac for reference. Basically, it boils down to processor generation and speed, which I need help understanding.
iMac = Intel Core Duo T2400 "Yonah" 1.83GHz
11.6" Air = Intel Core 2 Duo 1.4GHz
Other specs I believe are either same or better in the Air:
iMac
2mb L2 cache, 667 MHz bus, 2gb RAM
Air
3mb L2 cache, 800 MHz bus, 2gb RAM
how these two computers compare in terms of usage? My current iMac runs Photoshop CS5 tolerably fast and plays 1080p video just fine.
View 7 Replies
View Related
Oct 21, 2010
i have an imac intel core duo late 2006 model... with a 20 inch display... it has 128mb vram and i'd like to add another display. i run my mac with the highest resolution of 1680 x1050 and i'd like to keep this resolution and add another display maybe another 20" screen. has anyone done this? and what are the performance results... will there be any lag or problems?
View 4 Replies
View Related
Oct 24, 2010
I did some searching on this topic but couldn't really find any info. I have a 2006 24" iMac with a 250gb HD. I just upgraded the ram to 3gb and have done a fresh install of snow leopard but my machine still seems to struggle with applications and accessing files. I was looking at replacing it with either a WD Caviar Black or a Samsung Spinpoint 1tb. the extra space is not my biggest concern, just wondering about performance increases?
View 3 Replies
View Related
Aug 18, 2009
I'm experiencing external video banding/noise on a 2006 iMac (2GHz, Core Duo, 20" screen) when using Apple's video adapter (RGB to RCA/S-Video); I use it to connect my iMac's video output to my TV.
The noise is basically diagonal lines running top to bottom/left to right across the TV screen. They are faint and are more like ripples in the screen. It almost seems as though it's not grounded correctly.
I noticed this issue when I first got the computer; I switched the adapter back and forth between my iBook and the iMac and the noise was only evident on the iMac's output. I called Apple and they refused to deal with it, suggesting it was due to the video cable length (20 feet) even though the iBook was fine.
View 2 Replies
View Related
Sep 21, 2010
I have a Windows 7 custom-built PC and I also have an old, first generation Intel iMac from 2006. The iMac was running only Windows XP. The reason for that was that the screen of the iMac got cracked. I connected another monitor using mini-DVI connector and installed XP on the thing while I still could see certain things behind the broken screen. The reason I chose Windows was because in the Windows Intel Graphics Configurator program I had the ability to disable the main iMac screen and use the attached display as the main one. I did not have such option in OS X. I could select the attached display as the main one but could not shut down the iMac screen.
Anyway, it has been a year since then. Today my Windows OS on the iMac became corrupted. But, of course.. I cannot see what the error message says during boot because the iMac screen is broken completely now. The attached display only turns on when fully booted into Windows. So, I cannot reinstall Windows.. I cannot do anything. There were some important files on the iMac which I want to recover. I have SATA to USB controller which I used before on my computers but, from what I understand, these iMacs have laptop hard drives with different connectors. Can someone please guide me to a specific controller which I could use to connect the iMac HD to my Windows PC and transfer the files? I would be very, very thankful. My iMac is a late 2006 17'' model with 150GB hard drive.
View 2 Replies
View Related
Jan 14, 2010
I have a late 2006 24" IMac which has a myriad of issues. The most concerning to me at this point is the occasional appearance of a 1-2 pixel wide horizontal line which runs from 2" across to sometimes as much as 12" across the screen. It happens most often on the desktop and in firefox. It disappears as mysteriously as it appears.
Could the graphics card be going bad? Any ideas on what might be happening and how I might be able to solve this.
View 9 Replies
View Related
May 1, 2010
I was planning to upgrade our family's computers to a new MBP 13 inch with a 320 HDD and a iMac 3.06 GHz base model.
I was going to do a the Apple financing of no interest for 18 months since the 13 inch MBP came out but after reading online that an iMac update may be out in the near future I am wondering if I should wait.
Would like advice on whether I should just buy the 2 computers now and not worry or should I wait for next iMac. We have five kids that are using the computers and iPhones/iPods and speed is what they want for web-based games. The iBook is fine for me doing Quicken, e-mail and normal stuff but is seizing up sometimes. Hard Drive space is biggest issue since iMac only has around 160 gig HDD.
Everything I have read I believe that these 2 computers will be fine. We hold computers for 5 years and so I am getting to end of life on the ones I have.
My wife has also been using a 2006 circa MacBook Pro 17 inch that I use for work and loves it. She thought the 13 inch MBP keyboard was smaller but I told her I believe they are the same.
View 4 Replies
View Related
Jun 27, 2012
what to do to be able to still use Pages and Keynote on imac to save my work. I apparently cannot upgrade to Lion... So now what? Has anyone tried to add another 1 G ram to the machine and apply the Lion Upgrade ? Surely there is a way to manually save? work on i work
Info:
iMac (24-inch), Mac OS X (10.6.8)
View 1 Replies
View Related
Feb 25, 2009
Does anyone know which 17" LCD panels from the G5 iMac can be swapped with the Early 2006 Duo Core 17" iMac? My "speculation" is that the 17" G5 iSight equiped iMacs are a likely candidate.
View 3 Replies
View Related
Aug 21, 2010
I have 2 questions:1) I have a 2.GHz Core Duo CPU. I read that this model has a socketed CPU that can be replaced. Is this true?2) If yes, how fast can I go? Can I use the new Core i3 CPU?
View 10 Replies
View Related
Feb 7, 2012
it is possible to upgrade memory on iMac 24-inch Late 2006 up to 8 GB from 3 GB
View 2 Replies
View Related
May 5, 2012
Can I upgrade from OS X 10.6.8 to OS Lion on an IMac purchased in 2006?
Info:iMac, Mac OS X (10.6.8)
View 2 Replies
View Related
Jun 29, 2012
My screen freezes from time to time and CPU overheats.I have increased the fan speed with SMC download but still happens 2-3 times a day when downloading or watching video, also when using SKYPE worse when using both? BBC iPlayer does not make it freeze?
Info:
iMac, Mac OS X (10.6.8), 3GB Memory
View 1 Replies
View Related
