IMac early 2008 occasional screen flicker with external monitor
I am experiencing flickering with my early 2008 iMac when driving an external monitor. My Thinkpad is flawless when pushing out to the monitor.
It will be fine, but occassionaly (every 5-20seconds) the screen gives a little flicker, about 1/4 of a second in duration.
Also, sometimes, there is no flickering, it depends on what is being displayed, which makes me think video card. I am using the 2400XT and my software is up to date.
ROM Revision: 113-B2250H-259
EFI Driver Version: 01.00.259
I am thinking about trying to source a 2600pro that came on the more high end version of my iMac and swap out the graphics card. I also want to drop a 2TB hdd in it, so I figure I might as well kill 2 birds with one stone, or kill 1 iMac with 2 simutaneous upgrades if I am unlucky! (o_O)
iMacs are not designed to have the graphics cards upgraded. If your old card is bad and you feel competent to exchange it for the same one that's really your only GPU option. Apple never said the iMac GPU's were upgradeable and frankly I've never heard of anyone successfully upgrading an iMac GPU.
As far as the adaptor well you could bring your system into an Apple Store and have it checked out by a Genius, it's a free service. I don't know how to make a reservation in Japan but I'm sure you can from the Japanese Apple site. The link in the US is:
http://www.apple.com/buy/locator/service/
I'm providing that so you can look for something equivalent.
Similar Messages
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have iMac early 2008 2.8 Ghz with ox10.9.1 safari keeps shouding down can I deleted it and installed a new safari?
The Safari version you need is 7.0.1. What version shows in About Safari?
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IMac (early 2008): grey screen with Apple logo and spinning wheel
Hi there,
I have recently had a problem with my iMac - it started with distorted graphics and I booted into Safe Boot to back up all files with the intention of reinstalling OS X (either from original install CDs or from USB drive with Mountain Lion on). Safe Boot got rid of the distorted graphics but as I rebooted to reinstall, the iMac hung on the spinning wheel on a grey screen with the Apple logo.
I have tried (in no particular order) : resetting PRAM and SMC, booting from original install CDs, booting from the self-created Mountain Lion USB stick, booting into Safe Boot again, booting normally, taking out keyboard/mouse and booting normally... the pinwheel either freezes, the iMac reboots itself, or comes up with a screen telling me to reboot due to a problem. If I hold down command-V at startup it always freezes/fails at the same point and there's usually a previous shutdown cause of 3 or -128?!
I don't seem to be able to run the hardware test either from DVD or internet, I can boot into single user mode and the iMac will stay up for hours but I don't know what to look at or what to fix! There are kernel panic logs relating to some of the shutdowns but as I can't view these out of single-user mode I can't attach them to the post but can look & reply on another machine.
It's an early 2008 iMac, 24" screen, running OS X 10.8.2 - I'd appreciate any help and will try to provide any extra information anyone needs (that I can glean from single user mode, anyway!)
Kind regards,
CarlyI've looked at that, I did try to link the discussion to the article but it failed too Thank you though.
I just created an Ubuntu DVD to run - the graphics are distorted on that too so I'm guessing it's a fault with the graphics card. I don't have the knowledge to confirm/deny it so a trip to an Apple Store is probably in order? -
Screen flicker on external monitor
Has anyone had any experience with screen flicker on an external monitor? I connected my laptop to an external monitor and I get consistent flicker on the whole screen. If anyone can help, or could help pointing me to website etc. I'd appreciate it.
Good suggestions guys I'll put out some more information. The cable is ok (good thought to check for it). I plugged my vga cable to my tv and do not get the screen flicker. Also I'm using the ati driver which possibly has the same problem as the intel, one. I configured my xorg.conf as describe in the wiki xrandr page:
http://wiki.archlinux.org/index.php/Xra … _xorg.conf
One thing that I noticed that is a bit odd is the xrandr reports the display rate as 60.1. I've never seen this before so right now I'm thinking that it has to do with that.
xrandr
Screen 0: minimum 320 x 200, current 1440 x 900, maximum 1440 x 1440
VGA-0 connected 1440x900+0+0 (normal left inverted right x axis y axis) 410mm x 257mm
1440x900 60.1 + 75.0*
1400x1050 74.9 60.0
Still up the river so any more suggestions would be definitely appreciated. -
Screen flicker with multiple monitors
I tried plugging an external monitor into my laptop and though the second screen came up it caused both screens to flicker continuously with horizontal lines going across. This happened both when I used xrandr manually and when I used the Gnome control panel. It's been a while since I used an external monitor so I'm not sure if a particular update broke anything. Any help would be appreciated.
Try to run all displays in the same resolution (the settings of the less advanced, smaller display, not the other way around). Additional displays require additional processing, close other applications. Unplug the 23" for now, try it when you've got everything else running. Restart connected computers after you've changed settings on any detectable display. Make sure the bandwidth is sufficient for screen sharing on both ends. (I would use Spaces on the remote computer to create speedy access to applications.) When this works, try to connect the external display.
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IMac (Early 2008 Model) Screen Greys Out And Then Must Reboot
The iMac that we bought back in the summer of 2008 has been having issues over the past couple days. I was using Safari yesterday and then a grey "box" filled the screen and then told me to shut down the computer (by holding down the power button) and then restart it. I did that and I was back on my way. Then a few other people used the iMac (on their own accounts using Safari and iMovie) and had no problems. Just an hour ago I was exporting a video in iMovie and was using Safari at the same tiime and the screen greyed out again. I restarted it and this time I got 3 beeps with a 5 second pause in between over and over again while the screen was black. I held down the power button and it turned off; I waited a few minutes and turned it back on and now its working again. Any idea what's going on? I upgraded the RAM and upgraded to Lion last month. I have not reset the PRAM yet, I would like to know what the problem is and why this keeps randomly happening to what seems to only be my user account.
I've looked at that, I did try to link the discussion to the article but it failed too Thank you though.
I just created an Ubuntu DVD to run - the graphics are distorted on that too so I'm guessing it's a fault with the graphics card. I don't have the knowledge to confirm/deny it so a trip to an Apple Store is probably in order? -
This seemed to happen very suddenly; I left my iMac running while i went out and came in to find that the screen was totally unusable, as you will be able to see from the picture it has a lot of lines that seem to come and go a random and sometimes it goes black all together. What do you think is wrong with it? Logic board? Graphics card? Screen itself?.. also if it is the graphics card, is it separate to the logic board or do both need to be replaced?
Also some additional info:
iMac Early 2008
2.4ghz
4gb Ram
OSX 10.9.2
ATI Radion HD 2400
Actual computer working on external monitor, just not internal
ThanksCosts vary by area, I think you may find out though that spending money on a 6+ year computer may not be worth it, you can buy an Apple Refurbished Mac with much more up-to-date specifications and save hundreds of $s. If this is of interest you can only find them on Apple's on-line store, in the US the current link is:
http://store.apple.com/us/browse/home/specialdeals
Then click the link to the iMacs. If you don't find one you want, continue looking the inventories change frequently, sometimes by the hour. -
Problem description:
My iMac (early 2008) with OS 10.10.2 runs slow. I have run EtreCheck several times, and I am unable to move beyond Problem System Launch Agents (11 processes killed due to memory pressure) and Launch Daemons (12 processes killed).
EtreCheck version: 2.1.8 (121)
Report generated April 14, 2015 at 9:50:48 AM EDT
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
iMac (24-inch, Early 2008) (Verified)
iMac - model: iMac8,1
1 3.06 GHz Intel Core 2 Duo CPU: 2-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR2 SDRAM 800 MHz ok
BANK 1/DIMM1
2 GB DDR2 SDRAM 800 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
NVIDIA GeForce 8800 GS - VRAM: 512 MB
iMac 1920 x 1200
System Software: ℹ️
OS X 10.10.2 (14C1510) - Time since boot: 4 days 20:29:22
Disk Information: ℹ️
Hitachi HDS721010KLA330 disk0 : (1 TB)
EFI (disk0s1) <not mounted> : 210 MB
Mac iBook HD (disk0s2) / : 999.35 GB (521.60 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information: ℹ️
Apple Inc. Built-in iSight
Apple, Inc. Keyboard Hub
Apple, Inc Apple Keyboard
Apple Computer, Inc. IR Receiver
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Configuration files: ℹ️
/etc/sysctl.conf - Exists
Gatekeeper: ℹ️
Mac App Store and identified developers
Problem System Launch Agents: ℹ️
[killed] com.apple.CallHistoryPluginHelper.plist
[killed] com.apple.CallHistorySyncHelper.plist
[killed] com.apple.coreservices.appleid.authentication.plist
[killed] com.apple.icloud.fmfd.plist
[killed] com.apple.Maps.pushdaemon.plist
[killed] com.apple.printtool.agent.plist
[killed] com.apple.SafariNotificationAgent.plist
[killed] com.apple.sbd.plist
[killed] com.apple.scopedbookmarkagent.xpc.plist
[killed] com.apple.telephonyutilities.callservicesd.plist
[killed] com.apple.warmd_agent.plist
11 processes killed due to memory pressure
Problem System Launch Daemons: ℹ️
[killed] com.apple.AssetCacheLocatorService.plist
[killed] com.apple.ctkd.plist
[killed] com.apple.emond.aslmanager.plist
[killed] com.apple.icloud.findmydeviced.plist
[killed] com.apple.ifdreader.plist
[killed] com.apple.nehelper.plist
[killed] com.apple.nesessionmanager.plist
[killed] com.apple.periodic-daily.plist
[killed] com.apple.periodic-weekly.plist
[killed] com.apple.softwareupdate_download_service.plist
[killed] com.apple.wdhelper.plist
[killed] org.cups.cupsd.plist
12 processes killed due to memory pressure
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[running] com.adobe.AdobeCreativeCloud.plist [Click for support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.adobe.SwitchBoard.plist [Click for support]
[running] com.arubanetworks.via.NetworkMonitorLaunchd.plist [Click for support]
[loaded] com.microsoft.office.licensing.helper.plist [Click for support]
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[loaded] com.adobe.ARM.[...].plist [Click for support]
[loaded] com.adobe.ARM.[...].plist [Click for support]
[loaded] com.google.keystone.agent.plist [Click for support]
[running] com.spotify.webhelper.plist [Click for support]
User Login Items: ℹ️
ChronoSyncBackgrounder Application (/Library/Application Support/ChronoSync/ChronoSyncBackgrounder.app)
Dropbox Application (/Applications/Dropbox.app)
Canon IJ Network Scanner Selector2 Application Hidden (/Library/Printers/Canon/IJScanner/Utilities/Canon IJ Network Scanner Selector2.app)
Google Drive Application (/Applications/Google Drive.app)
Internet Plug-ins: ℹ️
Google Earth Web Plug-in: Version: 6.1 [Click for support]
Default Browser: Version: 600 - SDK 10.10
AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7 [Click for support]
Flip4Mac WMV Plugin: Version: 3.1.0.24 - SDK 10.8 [Click for support]
OVSHelper: Version: 1.1 [Click for support]
AdobeAAMDetect: Version: AdobeAAMDetect 2.0.0.0 - SDK 10.7 [Click for support]
AdobePDFViewerNPAPI: Version: 11.0.10 - SDK 10.6 [Click for support]
DivX Web Player: Version: 3.2.4.1250 - SDK 10.6 [Click for support]
FlashPlayer-10.6: Version: 17.0.0.134 - SDK 10.6 [Click for support]
Flash Player: Version: 17.0.0.134 - SDK 10.6 Outdated! Update
iPhotoPhotocast: Version: 7.0
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.4.8 - SDK 10.6 [Click for support]
AdobePDFViewer: Version: 11.0.10 - SDK 10.6 [Click for support]
Silverlight: Version: 5.1.20913.0 - SDK 10.6 [Click for support]
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
User internet Plug-ins: ℹ️
WebEx: Version: 1.0 [Click for support]
Google Earth Web Plug-in: Version: 7.1 [Click for support]
3rd Party Preference Panes: ℹ️
Adobe Version Cue CS2 [Click for support]
Flash Player [Click for support]
Flip4Mac WMV [Click for support]
VIA PrefPane [Click for support]
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
3% WindowServer
3% Mail
2% com.apple.iCloudHelper
1% Creative Cloud
1% Google Chrome
Top Processes by Memory: ℹ️
223 MB Google Chrome
150 MB Finder
129 MB Google Chrome Helper
112 MB Mail
69 MB Google Drive
Virtual Memory Information: ℹ️
35 MB Free RAM
1.45 GB Active RAM
1.45 GB Inactive RAM
888 MB Wired RAM
27.01 GB Page-ins
851 MB Page-outsWhen you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting. -
I'm having a problem on my iMac early 2008 (2.4GHz Core 2 Duo 4gb SDRAM) after upgrading to Mac OS X Lion.
The animation such as mission control and full screen and especially, launch pad performs really slow.
Sometimes, mission control doesn't even show the animation.
This is terrible and I want Apple to fix these problems or otherwise this is just making my mac useless.
Does anyone experience having similar problem?thanks for the reply!
I've checked the activity monitor but nothing was taking up the space expect for Flash Player (Safari Internet plug-in, which takes up 29% of CPU)
here's my screenshot. can you see any problems?
and here's another -
iMac early 2008 with OS X Lion 10.7.5 running slowly. How can I speed it up?
Hello, see how many of these you can answer...
See if the Disk is issuing any S.M.A.R.T errors in Disk Utility...
http://support.apple.com/kb/PH7029
Open Activity Monitor in Applications>Utilities, select All Processes & sort on CPU%, any indications there?
How much RAM & free space do you have also, click on the Memory & Disk Usage Tabs.
Open Console in Utilities & see if there are any clues or repeating messages when this happens.
In the Memory tab of Activity Monitor, are there a lot of Pageouts? -
Without warning, my iMac (early 2008) will freeze. The screen will go white or black and green vertical stripes. I have to hold the power button to reboot. Any thoughts as to what may be causing this?
Reset the SMC and PRAM. If it doesn't work, boot in safe mode -Mayús button during boot- and do your normal activity
-
Has anyone tried this and if so, was there a noticable difference in photoshop doing its various tasks? Again, its a imac early 2008, and I looking to use a firewire to attach a Solid State Drive to use as the scratch disk. I am maxed out a 6gb ram.
ThanksCanadianBear
KiltedTim's right of course. You seem to have adequate RAM.
I would ask you if this sluggishness is NEW? If so, what has changed that you can identify? Updates or upgrades? New software etc?
What kind of tasks? Any operation on a big image is processor heavy, but you have the RAM so scratch disk is the right direction. What is your 'History' preference in PShop? Keep that as small as you can afford to. Save often. Keep as few images open as possible - each image has its own History. Save often.
For scratch info on an image, choose that from the 'triangle' pop menu at the bottom of the document window. That seems a good way to tell if scratch disks are even at fault.
Happy Shopping
CCC -
IMac 24 in internal screen not working - external screen is working.
The model is 2.8 GHz Intel Core 2 Duo.
4GB memory
Serial Number (system): VM826CRLZE7
Chipset Model: NVIDIA GeForce 8800 GS
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0609
Revision ID: 0x00a2
ROM Revision: 3234
The graphics card was replaced in October in the Apple Store in Barcelona. Until a couple of weeks ago it was working OK again. Now the display is blank and I can only work on the external monitor I have hooked up to it.
If I turn off the computer over night - it will work for about one or two hours then go blank again. It will come back on again occasionally now and then during the day in a random way - not connected to what I am doing with the computer.
I have zapped the PRAM
If video is available remove display-related preferences:
1. Delete the com.apple.windowserver.plist preferences located at /Library/Preferences/com.apple.windowserver.plist and ~/Library/Preferences/ByHost/com.apple.windowserver.xxxx.plist/
I also did the upgrade to 10.6.7 and it worked for a few hours after that - Longer and I thought it was fixed but no luck. The screen is blank again.
I reset the SMC
Followed the advanced trouble shooting guide at http://support.apple.com/kb/HT1573
I would have expected that the repair I had done in October would last longer than this. It cost a lot to get the job done and they kept the iMac for a month. I need a way to fix this that isn't going to cost me as I am skint now.
Please Help.Hi,
At first my screen would go black and then sometimes come back on after an minute or half an hour. After a few days it went black and wouldn't come back on at all.
I got my replacement ATI 2600 Pro graphics card from a guy in Hong Kong on ebay.
http://cgi.ebay.co.uk/24-iMac-Early-2008-NVIDIA-GeForce-2600-PRO-Video-/17057901 1278?pt=PCCVideo_TVCards&hash=item27b74d26ce
I got an independant mac repair guy to fix it, I doubt apple would offer to do this job for you without using their parts. You could probably do it yourself if you know how to take the machine apart.
Message was edited by: andydckent -
Macbook Pro 13 Early 2011 ocasional screen flicker...
I bought a MBP 13 early 2011 i5 new about 2 weeks ago. Over the last week or so I get an occasional screen flicker. I lasts about a second and that is it. I had a MBP 13 2010 for a year before this one and never experienced this problem with that one. I am running Lion and all the software is up to date. I guess I am wondering if anyone else with this model has experienced this, is normal, or should it be something I should be concerned about. Thanks in advance for any answers on this. Also not related to heating either, temp is running the 40's, and just web browsing.
Call Apple Care. You have 14 days from the date of purchase to return your computer with no questions asked. Otherwise, you have the standard 1 year warranty and 3 years if you purchased Apple Care.
Take FULL advantage of your warranty. Posting on a message board should be done as a last resort and if you are out of warranty or Apple Care has expired. -
IMac Early 2008 - Spinning Wheel constantly also in Safe Mode
Hello Apple Support community!
Recently I've been having much trouble with my iMac Early 2008. In the last 5 years I have never had an issue with it until about 4 days ago and I have no idea how this problem came about.
I have 10.8.5 installed and know a bit about OS X.
Problem Description: On a recent Dropbox sync where there appeared to be a folder conflict the computer hung and was unresponsive. I had to hard shut down by using the power button. Every successive boot (and attempt for DB to sync) ended in a hang and the spinning wheel. I booted into Safemode, disabled Dropbox as a startup item, rebooted and everything worked for a few hours. Because I needed files from DB i decided to download the update and install. This added DB to the startup items again and history repeated itself. Spinning wheel on startup and a hard shut down again. This time safe mode couldn't save me. I was also getting the spinning wheel there too. I left it for a few days until today when I finally hads the time to troubleshoot.
From my iPad I unlinked the iMac from dropbox and booted it from the install disk to perform a hardward test. The standard test showed no errors so I rebooted. I immediately wanted to do a time machine backup and after 6GB were transferred, Time Machine stalled. The spinning wheel was back and I had to hard reset. So I started in safe mode and waited for Time Machine to do its thing. It began cleaning up and then managed only about 140MB before hanging.
Next I started the iMac in Firewire target disk mode and tried to transfer the files to my 15" Powerbook (OS 10.4.11) After only 700MB the Firewire logo on the iMac screen stopped moving and the file transfer stalled. I did a hard shut down again.
This time I ran OS 10.5.4 from the install disk and opened disk utility > verify disk to check for errors. None were found so I rebooted into SAFE MODE and wanted to run terminal to clear dyld cache. Since Finder is unusually sluggish and it seems any mouse-clicking causes the spinning wheel, I waited a bit and then hit command-space to bring up Spotlight into order to launch Terminal. There the iMac hung yet again, but quite strange is that the spotlight search window came up with the description about indexing taking a long time etc etc. I only know that the first time an HD has to be indexed and since this computer is quite old I find that curious.
A.t.m. I am running the extended hardware test from install disk and looking for suggestions about how I can reliably get my data off the HD in order to do a clean install, if I have to. Alternative suggestions to avoid that would be welcome, but I understand that this may be the only solution, if not also having to buy and install a new HD first.
thanks for your help in advance.
best regards,
DanAHT extended version reports the following error
4HDD/11/40000000:SATA(0,0)
Google results show only people with SSD drives reporting that. Cause could be a loose cable??
two weeks ago I moved and had to pack the iMac in the original box. However I transported this myself and not the movers.
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