Mac Pro refuses to sleep on it's own.

My Mac Pro used to be able to go to sleep by setting the Energy Saver settings to automatically sleep after so many minutes. It no longer sleeps at all on it's own. Lemme explain.
If I put my computer to sleep with the Apple Menu, or Power Button or any other manual method of sleeping my computer, it works but, if I leave it to sleep on it's own only the screen will go black. When I move my mouse, the screen will instantly come back on as if only the screen was sleeping. I know what a normal sleep sounds like... I'd hear a few clicks and hard disk spin downs and then my screen would go black but, it does not do that.
To prevent a bunch of people asking the "Have you tried...?" questions, I'll go ahead and list the things that I have already tried and failed.
1. Repaired permissions
2. Unplugged any external gadget (USB and FireWire)
3. Tried a brand new user
4. Tried Restarting (Hey, couldn't hurt to just Restart)
5. Checked for weird login items (Only EyeTV Helper which has been there the whole time even before the sleep problem)
6. Made sure my software was up to date (latest security and OS Updates)
7. Booted into "Safe Mode"
8. Checked Activity Monitor for any strange processes running
9. Checked for scanner software (Couldn't find it)
10. Tried switching the Mighty Mouse to the right keyboard USB port
11. Tried un-mounting all hard drives (except for boot drive)
I can't think of anything else to try. I can't believe that Safe Mode or a new user couldn't clear the problem. Has anyone else had this problem?
I'm running Mac OS 10.4.9 on a Mac Pro with 3GB of (working) RAM and 3 internal SATA hard drives and 2 internal SuperDrives.

My Mac Pro used to be able to go to sleep by setting
the Energy Saver settings to automatically sleep
after so many minutes. It no longer sleeps at all on
it's own. Lemme explain.
If I put my computer to sleep with the Apple Menu, or
Power Button or any other manual method of sleeping
my computer, it works but, if I leave it to sleep on
it's own only the screen will go black. When I move
my mouse, the screen will instantly come back on as
if only the screen was sleeping. I know what a normal
sleep sounds like... I'd hear a few clicks and hard
disk spin downs and then my screen would go black
but, it does not do that.
To prevent a bunch of people asking the "Have you
tried...?" questions, I'll go ahead and list the
things that I have already tried and failed.
1. Repaired permissions
2. Unplugged any external gadget (USB and FireWire)
3. Tried a brand new user
4. Tried Restarting (Hey, couldn't hurt to just
Restart)
5. Checked for weird login items (Only EyeTV Helper
which has been there the whole time even before the
sleep problem)
6. Made sure my software was up to date (latest
security and OS Updates)
7. Booted into "Safe Mode"
8. Checked Activity Monitor for any strange processes
running
9. Checked for scanner software (Couldn't find it)
10. Tried switching the Mighty Mouse to the right
keyboard USB port
11. Tried un-mounting all hard drives (except for
boot drive)
I can't think of anything else to try. I can't
believe that Safe Mode or a new user couldn't clear
the problem. Has anyone else had this problem?
I'm running Mac OS 10.4.9 on a Mac Pro with 3GB of
(working) RAM and 3 internal SATA hard drives and 2
internal SuperDrives.
Reset PRAM
Trash this file:
/Library/Preferences/System Configuration/com.apple,PowerManagement.plist
Then re-boot. Set Power preferences to your needs.
William

Similar Messages

Mac Pro will not sleep

As requested, this is a new post from the "my mac will not wake up" thread.
I am having trouble putting my Mac to sleep. When I try to enter sleep mode, the fans make noise like it wants to restart, then the monitors go out and immediately back on. It wont stay in sleep mode.
Ned Snowing seemed to have a pretty good idea of what the problem might be. Ned, can you please follow up from the other post? I think we might be on to something.
Also, I have a seagate 300gb HD installed in bay two, if that factor is relevant.
Mac Pro 2.66Ghz Mac OS X (10.4.7) 2GB RAM ATI X1900 Dual 20" Dell Widescreen Monitors

I've got a Mac Pro and this is what I see when my Mac sleeps... BUT... I don't see anything when it tries to sleep and doesn't... or rather, when it is supposed to sleep...
Dec 28 10:52:29 Justins-Cool-Mac-Pro kernel[0]: AFPSleepWakeHandler: going to sleep
Dec 28 10:52:29 Justins-Cool-Mac-Pro /etc/rc.sleep: executing .sleep of user justin
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: hibernate image path: /var/vm/sleepimage
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: sizeof(IOHibernateImageHeader) == 512
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: Opened file /var/vm/sleepimage, size 2147483648, partition base 0xc805000, maxio 400000
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: hibernate image major 14, minor 2, blocksize 512, pollers 3
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: hibernateallocpages flags 00000000, gobbling 0 pages
Dec 28 10:52:32 Justins-Cool-Mac-Pro kernel[0]: Intel8254x -- Link down -- 00:17:f2:01:83:ec -- called by disable() -- Auto-Neg Advertise Reg (04d) = 0xde1, Link Partner Ability Reg (05d) = 0x45e1
Dec 28 10:52:32 Justins-Cool-Mac-Pro kernel[0]: Intel8254x -- Link down -- 00:17:f2:01:83:ed -- called by disable() -- Auto-Neg Advertise Reg (04d) = 0xde1, Link Partner Ability Reg (05d) = 0x0

Why won't my Mac Pro go to sleep?

Why won't my Mac Pro go to sleep?

Hi X,
I've been having the same problem of mac pro not going to sleep. I think its to do with some universal audio drivers installed with a recent hardware interface I've added.
the terminal app in response to above line reads;
com.uaudio.driver.UAD2System(6.3.1)
com.uaudio.driver.UAFWAudio(4.0.0
com.digidesign.iokit.DigiDal(9.0.6f4)
com.paceap.kext.pacesupport.snowleopard(5.8)
launch agents (in user)
com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist
com.apple.FolderActions.enabled.plist
com.apple.FolderActions.folders.plist
com.google.keystone.agent.plist
launch agents and daemons - too many to list
any idea from this or would you need to see all the files you listed in Mona Gorillas query?
appreciate your input

Mac Pro will not sleep after reboot from Win 7 into OS X

I have the same problem as mentioned in this short thread; http://discussions.apple.com/message.jspa?messageID=11410973
Does anyone have any more information on this?
The problems started (I think) after I replaced my Nvidia GT120 with a ATI Radeon HD 5770.

I've got a Mac Pro and this is what I see when my Mac sleeps... BUT... I don't see anything when it tries to sleep and doesn't... or rather, when it is supposed to sleep...
Dec 28 10:52:29 Justins-Cool-Mac-Pro kernel[0]: AFPSleepWakeHandler: going to sleep
Dec 28 10:52:29 Justins-Cool-Mac-Pro /etc/rc.sleep: executing .sleep of user justin
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: hibernate image path: /var/vm/sleepimage
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: sizeof(IOHibernateImageHeader) == 512
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: Opened file /var/vm/sleepimage, size 2147483648, partition base 0xc805000, maxio 400000
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: hibernate image major 14, minor 2, blocksize 512, pollers 3
Dec 28 10:52:31 Justins-Cool-Mac-Pro kernel[0]: hibernateallocpages flags 00000000, gobbling 0 pages
Dec 28 10:52:32 Justins-Cool-Mac-Pro kernel[0]: Intel8254x -- Link down -- 00:17:f2:01:83:ec -- called by disable() -- Auto-Neg Advertise Reg (04d) = 0xde1, Link Partner Ability Reg (05d) = 0x45e1
Dec 28 10:52:32 Justins-Cool-Mac-Pro kernel[0]: Intel8254x -- Link down -- 00:17:f2:01:83:ed -- called by disable() -- Auto-Neg Advertise Reg (04d) = 0xde1, Link Partner Ability Reg (05d) = 0x0

2006 Mac Pro - wakes from sleep after 3-5 seconds

Folks, I have a 2006 Mac Pro (2.66 x 2-core) that refuses to stay asleep. The system.log shows this:
Dec 17 12:40:40 Mac-Pro-Wired-1 kernel[0]: System Sleep
Dec 17 12:40:44 Mac-Pro-Wired-1 kernel[0]: Wake reason = UHC2
Dec 17 12:40:44 Mac-Pro-Wired-1 kernel[0]: System Wake
Dec 17 12:40:44 Mac-Pro-Wired-1 kernel[0]: USB (UHCI):Port 2 on bus 0x3d has remote wakeup from some device
OK, so it's a USB device that's keeping the computer from sleeping. According to System Profiler, here is what is on bus 0x3d - Apple wired keyboard (the white one) and a Logitech MX518 gaming mouse is plugged into the USB port on the keyboard.
USB Bus:
Host Controller Location: Built In USB
Host Controller Driver: AppleUSBUHCI
PCI Device ID: 0x2689
PCI Revision ID: 0x0009
PCI Vendor ID: 0x8086
Bus Number: 0x3d
Hub in Apple Pro Keyboard:
Product ID: 0x1003
Vendor ID: 0x05ac (Apple Inc.)
Version: 4.10
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Location ID: 0x3d200000
Current Available (mA): 500
Current Required (mA): 50
USB-PS/2 Optical Mouse:
Product ID: 0xc01e
Vendor ID: 0x046d (Logitech Inc.)
Version: 22.00
Speed: Up to 1.5 Mb/sec
Manufacturer: Logitech
Location ID: 0x3d210000
Current Available (mA): 100
Current Required (mA): 98
Apple Pro Keyboard:
Product ID: 0x020b
Vendor ID: 0x05ac (Apple Inc.)
Version: 4.10
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Location ID: 0x3d230000
Current Available (mA): 250
Current Required (mA): 50
Is the keyboard on port 2, or is it the mouse?
If I unplug the mouse and use the keyboard to place the computer into sleep mode (Option + Command + Eject), the same thing happens. It appears the wake is coming from the keyboard or the keyboard's built-in hub.
I have:
- installed update 10.5.6 using the downloaded combo update.
- reset the SMC (a few times)
- reset PRAM
- repair permissions
and no dice!
I could sure use some help figuring this out.
Thanks...

The sleep feature hardly works on Macs if at all. I had that same issue while on Tiger. Same thing. Mine was a PCI card that would awake it after a period of time. I have had issues with it NOT going to sleep also due to a PCI card and USB hub. I even disconnected everything and had gone back to stock and that still did not resolve it without having to reset the power management controller in Terminal. That was how I got it to work again on my old PPC machine.
One test to try is to disconnect all the USB gear including the hub and let the machine go into sleep on it's own. If it wakes up- it's not related to USB but probably an internal timer that is out of whack or a PCI based issue.
I had so many issues way back in 2004 that I finally gave up and just set it to never sleep. I have never had any issues after that! LOL
So, getting back to the timer deal. There are times when the internal timer in the power management portion of OS X and it can actually flip to a wake command. Best thing to do in your case is to go in and trash the plist file for power management and restart. That should help in that case. If it doesn't make a bit of difference and the issues persist, then there's something other than that going on.

Mac Pro will not sleep in Lion

I know, there are plenty of threads dealing with sleep issues, but they get confused with all sorts of different situations, so I'd like to present my very specific problem with the hope that someone will have a bright idea about what I might try to solve it.
As the title states I am running a Mac Pro and Lion. I've been running from my Snow Leopard partition for several months because I couldn't solve this problem, but today I decided to have another go at it. Under Snow Leopard, there is no problem with sleep. Under Lion,the computer will sleep via power button, menu, or keyboard shortcut, but absolutely refuses to sleep via energy saver settings. I have:
1. Reset PRAM.
2. Rest SMU.
3. Fixed prefs.
4. Cleared all print queues.
5. Turned off all sharing.
6. Trashed SystemConfiguration folder.
7. Checked Console logs from any strange activities (nothing)
8. Ran pmset -g (nothing shows preventing sleep)
I tried PleaseSleep, but I don't like it as a solution because there are too many programs that I would need to exclude (EyeTV, Audio Hijack, HandBrake, etc.), so the machine would remain awake a lot of the time anyway. Is there anything I've missed here?

Try reinstalling.
Reinstalling Lion Without the Installer
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alterhatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

My mac pro won't sleep on its own or when I try to put it to sleep.

Hello all,
I have a 2007 Mac Pro and for some reason, it won't go to sleep. Normally if it was idle for an hour or two, it would automatically sleep but not anymore. If I put it to sleep manually, it wakes right back up. I have to shut it down so the hard drives don't spin all night long. I'm not sure what's causing this. I tried unplugging all the USB devices and plugging them back in. It tried resetting PRAM. In my preferences, my computer sleep prefernces remain unchanged from the time that it was functioning correctly. If anyone has a suggestion I would love to hear it.
The text below is from terminal after typing 'pmset -g assertions' Perhaps it will be helpful in diagnosing the issue.
5/6/13 11:25:39 PM PDT
Assertion status system-wide:
ChargeInhibit                                    0
NoDisplaySleepAssertion                 0
CPUBoundAssertion                         0
EnableIdleSleep                                1
NoIdleSleepAssertion                        0
DisableInflow                                     0
DisableLowPowerBatteryWarnings   0
ExternalMedia                                   0
No Assertions.
Thank you for your time.
Cheers,
Jonathan

Test after each of the following steps that you haven’t already tried:
Step 1
Take all the steps suggested in this support article.
Step 2
From the menu bar, select
 ▹ System Preferences ▹ Print & Scan ▹ Open Print Queue
Check all printers for unfinished jobs. Deal with any you find.
Step 3
 ▹ System Preferences ▹ Sharing: uncheck all boxes.
Step 4
Reboot and see whether there's any change.
Step 5
Reset the SMC.
Step 6
Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Safe mode is much slower to boot and run than normal. Don’t launch any applications at first. If sleep still doesn’t work properly, back up all data and reinstall the OS. After that, if you still have the issue, make a “Genius” appointment at an Apple Store to have the machine tested.
If sleep now works as expected, go on to the next step.
Step 7
Still in safe mode, launch the usual set of applications that are running when you have the problem, including your login items, one at a time, testing after each one. Some applications may not work; skip them. You might be able to identify the cause of the problem this way.
Step 8
If sleep is still working after you’ve launched all the usual applications, reboot as usual (not in safe mode) and test again. If sleep still works, you’re done, at least for the moment.
If you still have the sleep issue after booting out of safe mode, post again.

Mac Pro does not sleep with lid open

Hi this was the original post I posted a couple days ago.
"Hi All,
I have had a problem with my mac book pro, it does not sleep while the screen is left open. The way I used to be able to tell if the mac is sleeping is the light on the front should flash as it does when the screen is closed. Here is what has happened in the past.
1. The original hard drive failed and was replaced with a 500gb
2. I have had the top case replaced as the mac book pro would not sleep with the screen closed
3. A clean install with OSX 10.6.8
After doing all this, the mac is still having the same issue.
When the screen is left open, I can hear the fans whirring away and the battery is drained as if I am running an intensive program. I can leave it all night with the screen up and wake up to the battery being completely dead. It usually takes about 3 hours or so. (105 cycles on the battery). The settings are set so that the screen and mac hibernate after 1 minute, and all applications are closed with wi-fi, etc turned off.
When my fathers and my brothers mac book pro is left open, the light on the front of the case flashes.
I have been to the apple store repeatedly and they are adament there is no issue with the mac. They did all their "tests" and the hardware was tested as "good".
Thanks for any help!
Chris"
The problem was solved with the following:
1. Deleting Login Items
2. Turning off blu-tooth
3. Unchecking "wake for network access"
Sources given:
http://support.apple.com/kb/TS3402
http://support.apple.com/kb/TS4167
However, the same problem came back last night.
Any ideas what is causing this?
Thanks,
Chris

I forgot to mention that I followed the same instructions that did solve the problem.
The things I tried were:
1. turning off wi-fi
2. closing all apps
Doing this however did not solve my problem either.
Chris

Mac Pro will not sleep properly after installing new SATA BD-CD-DVD drive.

Hello and thank you in advance for time reading this.
I have been using a Mac Pro for 4 years and it never happened to me before.
This started almost immediately after installing a new SATA BD-CD-DVD Drive.
When the Mac is ordered to sleep, It shuts down 3 out of 4 Hard Drives
(I guess the one that doesn't is the OSX Drive) and It will not shut down the fans
and the display has no signal.
During that (when it won't sleep completely) the Mac is completely paralysed and it's unable to wake up.
Now, I've tried being patient and giving the Mac a ton of time to sleep.
In some cases it actually worked and the Mac did sleep completely and it was able to wake up,
but that defeats the purpose (being able to sleep and wake up in an in a few seconds).
In these few cases, the Mac took about 30 min to sleep.
In the rest of the cases the Mac never slept and I had to emergency shut it off from the power button.
In simply words, Mac falls into a "coma", not asleep but not awake at the same time.
As I said, this started exactly when I installed an SATA LG CH10LS20 optical Drive.
You may say that the Mac Pro does not support SATA for optical Drives.
This is why you should know that there is a SATA port on the motherboard of a Mac,
and with the correct method you can connect a SATA Drive AND be able to use it with out additional drivers.
http://www.tomorrowland.com/guides/mac-pro-optical-drive-install-part-1/
Now, you may say that If I'm so sure that it's the new drive causing the problem, why don't I disconnect it?
Well, please try to understand me, it's an all new drive and it cost a good load of money...
and other users of the same drive do not have that problem... yet...
Is there a way for the drive (which otherwise works fine) and the Mac to coexist and work properly?
Do you really think it's the new Drive?
Is the motherboard bothered somehow by the new drive and wont go to sleep properly?
Any kind of help is welcome and
I thank you in advance if you can help me.

Thanks for taking the time to respond RedBaron, I don't have a USB aircard in this system but I do have numerous firewire drives. I haven't unplugged everything yet and restarted. That's a good tip. I think I will try that to see if that is the problem.
Thanks again
Chris

Time Machine turns itself on after my Mac Pro wakes from sleep (every time)

Hi,
I have a 2009 Mac Pro and it currently has Lion on it (10.7.4), but the problem I am about to explain started when the machine was running Snow Leopard, so it doesn't appear to be an OS-specific issue.
I do not currently use Time Machine, I use Carbon Copy Cloner and some online backup solutions to handle backups. I did use Time Machine for a short time on this machine just after it was introduced, but I didn't end up using it for long and the external drive I used for the backups is no longer in service.
The problem is this:
I have Time Machine off and I have all of my drives (I have 4 drives in my Mac and an external drive) set not to be backed up for good measure. Time Machine will stay off like it should except in one instance. If I put my machine to sleep, when my Mac wakes, Time Machine is instantly turned on and I get a warning telling me no backup drive has been selected and that I should pick one. I go into the Time Machine preferences and turn it off. It will remain off (I've checked the preferences to be sure) until the next time the machine is put to sleep. Time Machine will remain off, even through reboots. It is only waking from sleep that causes this.
I've tried zapping the PRAM, getting rid of the Time Machine preferences and even logging into a new, unused user account and testing it from there and the problem continues. This is really starting to annoy me. I wouldn't mind having TM on, but having to click through the warning every time my Mac wakes from sleep is frustrating.
I don't want to have to buy a new external hard drive and let TM backup to the drive because, as I said, I've got my backup solutions handled already and I'm not willing to put yet more money to use a feature I don't need right now.
I've done searches online and asked around and no one has been able to help me yet. So I thought I'd try here.
Anyone have any ideas?

Do you see a wake reason in Applications>Utilities>Console?

2009 Mac Pro will not sleep from set prefs

Hi all:
I've got a 1 YO Quad, 2.93 Nehelam that wont sleep on set schedule. It has been doing this sense last week. I get the P-RAM, unplugged everything (even power), re-plugged everything, repaired my drive with disc utility, erased start up items, everything.
It WILL sleep on Q but not on a schedule in energy saver prefs. The only thing thats different lately is that Installed CS5 Master suite and Apple's latest audio update (which fixed my audio by the way...)
Any idea's.
Thanks---Seattle

Is this question in the correct discussion? I thought this was the discussion for Mac Pro (previous to 2009). This could be a problem that appeared in the 2009 Mac Pro line ... or it could be related to the OS you are running.

Why won't my Mac Pro go to sleep any more?

I upgraded to yosemite I a few days later I noticed that my mac pro (3.1 early 2008 dual 2.8 xeon processors, two sad's one hdd, 14GB memory) doesn't go to sleep any more. When I choose sleep from the Apple menu the displays go dark and it looks like it's sleeping, but the system is still humming along, as if a fan or an HDD is still spinning. I can shut it down just fine, but would really like just to have it go to sleep like it used to.
I also recently added a PCIe USB 3.0/eSATA card for external connections (From OWC, compatible with my system).
Any known issues that would cause this?

Hi ..
Open System Preferences > Energy Saver then click: Restore Defaults
Then select Sleep from the Apple  menu.
See if that makes a difference.
If not, reset the PRAM > OS X Yosemite: Reset your computer’s PRAM
BTW, if connected, external drives can prevent the Mac from going in to sleep mode.

Mac Pro unexpectedly enters sleep mode

Ok so I installed Leopard last weekend on my Mac Pro and all initially went well with the install. After installation was done, software update appeared and stated I had approximately 4 downloads to install. So I had done this and prepared to reboot. Before rebooting, a window appeared stating that it needed to update the Boot cache. So I clicked on "OK" and the computer went into its shutdown sequence. When the computer reset, I noticed there was no start up chime and the system just sat there with a black screen. I thought perhaps it was updating the boot cache and it may take a while to finish. So I went afk for about an hour and came back. Still nothing. This is when I knew there was something seriously wrong with my system.
After speaking with Apple support and trying several things to get it to boot, the support rep stated that it will need to go into the shop for repairs. I had taken it to an authorized service center and they diagnosed the problem as a bad logic board. They had replaced this and had ran their diagnostic tools on it to make sure it was running normally. They kept it overnight and ran Apple Service diagnostics in a repeating loop on the system. They had also cold booted the system 30+ times per the work order.
After I brought it home and booted it, everything was seemingly running fine. Then I received a page from work (I'm a support rep) which required me to boot into Windows using Boot Camp to solve a client's problem. After I had done this, I booted Leopard back up and was playing around in it for a few minutes to check out some of the new features. I had then ran World of Warcraft to play a bit and to check out the performance increase in Leopard. After about 5 minutes of playing, my system unexpectedly entered sleep mode. Obviously I was confused so I had brought it out of sleep mode by hitting the enter key. The system came back for about 2 seconds and immediately went back into sleep mode again. This happened about 4 or 5 times before I finally shut the system down.
The first thing I did after reboot is to check the energy saver options. Both hard drive and monitor energy options were set to "Never". I then checked for software updates. There was both an SMC firmware update and a Boot Camp EFI(?) firmware update. I had done the SMC firmware update first and then after successfully updating this, I had done the Boot Camp firmware update. After reboot, the system went into sleep mode on its own approximately 5 minutes after reboot. This time I had made sure NOT to run my game as I had a suspicion that this could be causing the problem. It entered sleep mode anyway unexpectedly. After waking it up again by hitting the enter key, the desktop appeared again for about 2 seconds before going right back into sleep mode. I called the service center again and they said I would have to bring it in for them to look at. Needless to say, I am NOT very pleased.
Has anyone ever heard of anything like this happening with a Mac Pro? I had never had any problems when I was running Tiger with any application, not even my game. The service rep where I took it said it was just bad timing that the logic board went during my OS upgrade and that the two had nothing to do with each other. My brother has a Mac Pro as well and he had upgraded to Leopard. Of course his computer works fine where mine is a sleeping fool. Does anyone have any ideas or theories as to what could be causing this? More importantly, does anyone have any suggestions on how I might be able to fix this on my own? If you could please let me know, I would appreciate it. Thank you in advance for your time.

Wow, who are you dealing with? The first time my logic board was replaced, the techs never bothered with looking at anything else as being the problem. However, when I pointed out the power supply fan problem, they focused on that being the cause of the problem and fixed just that. I was somewhat concerned as I know some of these techs do not look at other parts of the machine as potential problem causers. I was afraid that I would hook up my system only to experience the same problem as before. Luckily, that was not the case.
I am glad that your system appears to have the same problem as mine did. I would suggest that if you take it back to them again for a fan fix to have them run the system for about an hour after replacing it. They should be opening apps, checking the iStat widget, etc to try and make it break. If they can't after an hour or so, I think it should be ok.
This whole ordeal makes me question the quality of parts used by Apple. My brother has an iMac G4 where the hard drive died after 2 months of getting it new. Now this issue with mine and yours with the bad logic board and the power supply fan. Who knows how many other customers report hardware related problems?

2010 mac pro will not sleep

2010 Mac Pro 10.6.8 recently will not go to sleep. Will awaken without reason when it is put to sleep with menue command. Tried resetting system management controller and PRAM to no avail. Any suggestions?

Look at the kernel log for a line that says "Wake reason". You will see a code to the right indicating the wake reason. Look here for the meaning of the codes. Perphas that will give you a clue as to why you machine is waking up.

Mac Pro screen will sleep but not the HD!? ..could it be 10.5.6..?

Hello Wonderful People..
I've have recently discovered that my Mac Pro will sleep but only the screen,not the HD!? If I'm correct, this might have only started since updating to 10.5.6, but I'm not entirely sure!
Any ideas..?

..can't find a way to delete this post! All magically is ok again..?

Mac Pro refuses to sleep on it's own.

Similar Messages

Maybe you are looking for