Intel Mac :: Upgraded Ram But Now Sleep And Wake Function Won't Work?
Jun 1, 2012
I just purchased a set of Mushkin Apple 8GB (2x4GB) DDR3 1333MHz SODIMM 9-9-9-24 (976647A) RAM for my mid 2011 27" iMac and everything ran great for a few days. I was able to sleep and wake the machine with no problems. Last night I was doing some graphic intensive work on my machine and when I had finished, the fans were still running high but I was going to bed so I put the machine to sleep. Normally the fans would stop at this point but they kept running. I assumed the machine was still hot so it was just cooling after sleeping. The next morning the machine would not wake. I had to do a hard reset to get it to boot up again I tried resetting the SMC and PRAM but it still doesn't wake from sleep. Am I have issues with my RAM?
Info:
iMac (27-inch Mid 2011), Mac OS X (10.6.8)
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Jan 21, 2009
I'm experiencing very annoying sleep/wakeup problems with Mid 2007 iMac. I think it started after 10.5.6 update.
1. iMac does not go to sleep according to the Energy saving settings, this was actually from the day one. It goes to screen saver, display sleep, but not complete sleep.
2. Since automatic sleeping does not work, I put it to sleep manually by pressing Power button. but in this case it sleeps so deep, that it does not wakeup. The only way to bring it back is to hold the Power button to complete OFF and then power back UP.
I tried, PRAM and permissions tricks, nothing seem to help.
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Sep 3, 2007
VLC (because Front Row is just too slow for me), and I want to go to sleep. I hold the play button on my Apple Remote to sleep my computer, but from within VLC it does nothing.Is there any way to get the 'hold play on the apple remote to sleep your computer' function to work from within VLC?
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Feb 1, 2012
When my computer goes to sleep it will not wake up, and I have to shut down using the power button on the back and then restart. I called support and they advised me that this only happened when the computer went to sleep on it's opwn but not when you manually put it to sleep, But that proved not to be true. It will not wake up under either situation? The support persontold me to logonto applke and re-install the sytem software which I have done but that did not cure the problem either. I have my preference set to never sleep. I am ar]t a loss as to what to do now as when it goes to sleep or I put it to sleep i sometimes will not start up even after shutting down and restarting.I am on 10.7.2?
Info:
Imac G5, Mac OS X (10.7)
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Feb 24, 2012
Mac owner for 2 months now and have had no problems till today...had to reboot to wake up from sleep mode...one time occurrence or start of an issue?
Info:
iMac (21.5-inch Mid 2011)
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Mar 29, 2012
Computer does not wake from sleep mode
Info:
iMac, Mac OS X (10.6.8)
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Apr 26, 2012
My iMac won't start up, or wake from sleep. I've tried everything, except for reinstalling the SO-DIMM memory modules. Still, my iMac will not wake up. Turning it on, you can hear the fan run, but the display stays dark.Â
Info:
iMac, Mac OS X (10.6.8)
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May 5, 2012
My Mac would not turn on this morning from sleep mode. I pressed the power button and nothing. Then I did it again and heard the fan shut off inside so I tried again and up it came. Also I cannot wake my Mac up unless I press the power button. I used to press any key on the keyboard or move the mouse and it would wake up, but now that doens't work. I don't know if this could be a reason, but my mother has a horrible habit of unplugging it when it storms. It's always asleep and I've told her not to do that and to make sure it's turned off before ripping the cord from the wall. But she continues to do it when it storms.
Info:
iMac
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May 28, 2012
Computer would only start after sleep mode if I unplugged the power cord. The power button would not do anything, even if I held it for a long time.
Shut down and start up would work normally. Only effected sleep mode.
After much trouble shooting I found that I had a bad USB hub. Everything on the bad USB hub would work fine so I didn't suspect it.
Info:
iMac, Windows 7
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Mar 31, 2012
cant wake up imac from sleep after lion upgrade
Info:iMac, Mac OS X (10.7.3)
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Apr 2, 2012
Ever since I bought and downloaded OS Lion, whenever I put my mac to sleep or it goes to sleep on its own it occasionally won't wake up from sleep. It has to be manually rebooted. Is anyone familiar with this problem. Apple must know about it by now. I'm not lugging my 27" iMac into the apple store to have them look at it unless it won't reboot. Hoping it doesn't come to that...anyone familiar with this or have ideas on how to fix it? I don't know if it's a 3rd party software issue or just the OS.
Info:
iMac, Mac OS X (10.7.3)
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Apr 20, 2012
My iMac (10.6.8) goes to sleep after 2 or 3 hours (even if im working at the time) and will not wake up without a hard reboot.Â
Info:
iMac, Mac OS X (10.6.8)
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May 13, 2012
For some unknown reason I will put my mac to sleep and at sometimes it will wake up without any command to wake up - why this happens and how to correct it?
Info:
iMac
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Jun 22, 2012
My screen on my 2 week old iMac comes up pixelated leaving square trails mimicking the movement of the mouse. I have had consultations twice with Apple support junior team members, looking forward to a senior team member reviewing my case. It looks like some sort of eraser wiping the blank dark screen revealing the login screen underneath.
Oh by the way my first iMac was sent back due to dead pixels, how unusual is that?
Info:
iMac (21.5-inch Mid 2011), Mac OS X (10.7.4), 2 weeks old
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Jan 30, 2008
My iMac is about 4 months old and about twice a month after sleeping overnight the computer will not wake up. After several attempts pressing keys on the keyboard and clicking on the mouse, I have to unplug the Mac and then press the start button on the back
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Feb 19, 2012
I'm using an iMac (late 2011) with 10.7.3. I'm doing things on the computer or some process is going on when the screen instantly goes black (no dimming first). If a video was playing, I can still hear it playing, but pushing keys on the keyboard or mouse or pad does nothing to wake the screen. Sometimes pushing the power button a number of times will get the screen to come on, sometimes it won't. When the screen goes black, if an external drive was running and then stops, I can sometimes get the screen to come to live. Sometimes this black screen happens when I'm burning a DVD; when the DVD is finished, I can bring the screen to life. I thought one of my two external drives was bad, so I disconnected it. That seemed to help (though verifying the disk revealed no problems). But a few minutes ago, the screen instantly went black again; no dimming first. There have been times I thought this was associated with a new bit of software, but then it returns even after I delete the suspect software. Sometimes I have to use the power button to shut down the iMac then restart it. Once, I had to unplug and replug the iMac before I could get the computer to respond and the screen to return to life. I don't know if this is a hardware problem (internal or external), a software problem, or some combination...or something I haven't thought of, at all.
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.3)
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Feb 23, 2012
My iMac is set up wireless. Every time it's allowed to go in sleep mode, it loses wireless connectivity. Then, when I wake it up, I must go to System preferences, Network and request it to reconnect to my home wireless network. It always does this successfully, but it's quite annoying that it seems unable to achieve this on it's own. My iPad 2 and kindle can do this, why not my iMac?
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.3)
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Jun 19, 2014
When I need to go somewhere or just eat lunch, I put my iMac to sleep. After that, when I come back to wake it back up, it stays black.
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Dec 7, 2014
Am having issues with mirroring my display to my apple tv via Airplay mirroring. I am able to airplay via iTunes movies/videos but can't get the mirroring display function to work.
Info:
iMac with Retina 5K display, OS X Yosemite (10.10.1)
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May 27, 2012
I orderd 8 gig's of RAM from Apple. Installed it per the instructions. Now, the MBP with Lion boots up and runs fine from off, the activity monitor acknowledges the 8 gig's. Runs well.
When I close it and then open it back up, the screen stays black and the sleep light goes out.Also, sometimes it won't boot, the light blinks and it makes a beeping noise over and over until I do a hard shutdown. Also, a couple of times, I was using it and the graphics went totally screwy and were blinking and whatnot until I did a hard shut down. Can I return the memory (a shame because it is better with it when it works). Software Mac OS X Server Lion 10.7.3 (11D50)Graphics Intel HD Graphics 288 MBMemory 8 GB 1067 MHz DDR3Processor 2.53 GHz Intel Core i517-inch, Mid 2010
Info:MacBook Pro (17-inch Mid 2010), Mac OS X (10.7.3)
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Nov 30, 2014
My iMac wake unexpectedly from sleep mode then goes back to sleep 00:10-00:15 later. Yosemite is current.
Info:
iMac, Mac OS X (10.6.8)
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Feb 9, 2009
I'm on Leopard 10.5.6, Mac Mini. Does the sleep function use power? If yes, how much power to maintain that sleep state? Can I switch off my power plug after putting it to sleep?
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Oct 28, 2009
Since i got my 24" imac back 2 years ago, i always put it into sleep mode. I upgraded to SL a couple weeks back. Just in the past 2 days, when i put it into sleep mode, it takes a while for it to actually perform this operation. Anyone know what might be the problem?
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Jul 23, 2009
I have an intel based mac pro running tiger. When it falls asleep if it's asleep for an extended period of time...say 45 minutes or longer, it won't wake up. I have to manually power it down. If it's asleep for less than 45 minutes it wakes up fine.
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Feb 2, 2012
I have a MacPro Dual 3GHz, running OS 10.5.8 and when my Mac goes to sleep, it won't wake up. Fans speed up and light blinks, but I have to do a hard reboot.
Info:
Mac Pro, Mac OS X (10.5.8)
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Sep 9, 2014
Every time I come back to my computer and wake it up, it shows full connection to my network but will not work. After I turn the wi-fi off, and back on, it is fine. How do I get it to work without having to do that every time my computer goes to sleep?
Info:
iMac, OS X Mavericks (10.9.4)
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Jan 6, 2011
My Mac Pro 1,1 with a recently installed 120 GB OWC SSD Rev. 343A has been locking up (spinning beach ball) mostly on the "Enter your Password" screen when waking up from full sleep or displays going to sleep. I have to perform a hard reboot then it works fine, til it falls asleep and I have to wake it up. If I put it to sleep via the Menu it wakes up normally without issue. I've run Disk Utility, says it's fine. Repaired permissions. Ran the daily, weekly and monthly scripts. Cleaned my Cache with Onyx (not sure what else I could do with it)
Disksomnia is installed for FCP, to keep the disks spinning, never was a problem before. The SSD is the only major change in recent times.
Any knowledge or thoughts as to what I could do to find the problem?
Computer's up to date OS wise, 10.6.5, 12 GB Ram, Seagate 750's HDD's in the three other bays, Blackmagic card PCI, eSATA extender cable for two OWC Enclosures, other FW800 external HD's, NVIDIA Geforce 8600 GT & 7300 GT video cards for three monitors.
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Sep 1, 2006
Having some trouble with my iMac (the version right before the intel iMacs came out. further info can be provided if needed). Running all the latest software updates etc. When I put the iMac to sleep, it goes off as normal. With the usual white light. However, when coming to wake the iMac it won't respond to the keyboard or mouse. I have to shut it down at the power button, and then turn it back on.
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Jul 11, 2007
I put my 3 day old MBP to sleep last night with a 90% battery level (with the A/C adapter unplugged). I had calibrated the battery the day before. This morning, when I opened the lid, nothing happened. I thought this was odd. I then pressed the power button and heard about 1 second of the startup tone and then nothing. I repeated this twice more with the same result. I then plugged in the A/C adapter and the MBP booted up. The battery level was 86%. What do you think has caused this? Do I have a defective battery or something more serious?
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Feb 3, 2009
However, twice now when I've run the battery down (as recommended to keep the battery healthy), and then put it to sleep and plug it in, when I try to wake it up later, it won't start. Powering on and off just lead to a little "click-whirr" and the power light pops on and off, but no action. I called applecare and they said to unplug it, take the battery out, leave it out for a bit, then put it back in, then plug it back in, and restart it. It worked (although the second such crash, it took two tries for unclear reasons). Needless to say, this is a bit frustrating. Is this a known problem? Should I do something to avoid it? Is it a lemon?
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