When shutting down my fan goes on

I have a late  2012 Imac  27". When I  shut downmy  fan  goes on.  It  is  very  loud  and  does not turn off.  I  have to  pull the  plug.  Help?

If the fans are very loud and won't stop, you need to find out what's causing that. Open the Activity Monitor
 > Applications > Utilities > Activity Monitor.app
Select 'All Processes' from the drop-down menu on the right.
Click the %CPU tab in the window, twice if necessary, so that the little arrow is pointng downwards.
What's at the top, and how much %CPU is it using? That's what's causing your fans to run fast.
If you're burning or rendering a video or doing a lengthy download, it'll stop when your process stops. If you're not doing anything but some process is using up 80% or more of your CPU, select it and hit 'Quit' from the taskbar. You may have to choose 'force quit' and add your password if requested depending on what the process is.
If you're not sure, post back with the name of the process.

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  • Beeps when Shutting down

    Hi,
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    Problem no 2. Small (white light) flickering lines across the screen when the harddisk is working
    I have following system:
    K7N2G-L
    Athlon XP 1900+
    Kingston ValueRam 2 * 256 mb (slot1 and slot 3)
    PSU 350W (qtec)
    bios versin 3.4
    Nforce drivers 2.41
    FSB ratio Dram 1:1
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    carljo

    carljo,
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    Second, your Power Supply could be the problem if it is not giving out enough juice.
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    Richard

  • Issues when shutting down Arch

    When shutting down arch, as normal, System > Shutdown, it then shows the CLI and the login prompt:
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    Thank you
    If you need any output, let me know
    Last edited by degmic71 (2009-04-01 03:01:24)

    Here is ps -e:
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    [root@DEATH_STAR mikeyd]# ps -e
    PID TTY TIME CMD
    1 ? 00:00:00 init
    2 ? 00:00:00 kthreadd
    3 ? 00:00:00 migration/0
    4 ? 00:00:00 ksoftirqd/0
    5 ? 00:00:00 watchdog/0
    6 ? 00:00:00 migration/1
    7 ? 00:00:00 ksoftirqd/1
    8 ? 00:00:00 watchdog/1
    9 ? 00:00:00 migration/2
    10 ? 00:00:00 ksoftirqd/2
    11 ? 00:00:00 watchdog/2
    12 ? 00:00:00 migration/3
    13 ? 00:00:00 ksoftirqd/3
    14 ? 00:00:00 watchdog/3
    15 ? 00:00:00 events/0
    16 ? 00:00:00 events/1
    17 ? 00:00:00 events/2
    18 ? 00:00:00 events/3
    19 ? 00:00:00 khelper
    20 ? 00:00:00 kstop/0
    21 ? 00:00:00 kstop/1
    22 ? 00:00:00 kstop/2
    23 ? 00:00:00 kstop/3
    24 ? 00:00:00 kblockd/0
    25 ? 00:00:00 kblockd/1
    26 ? 00:00:00 kblockd/2
    27 ? 00:00:00 kblockd/3
    28 ? 00:00:00 kacpid
    29 ? 00:00:00 kacpi_notify
    30 ? 00:00:00 kseriod
    31 ? 00:00:00 pdflush
    32 ? 00:00:00 pdflush
    33 ? 00:00:00 kswapd0
    34 ? 00:00:00 aio/0
    35 ? 00:00:00 aio/1
    36 ? 00:00:00 aio/2
    37 ? 00:00:00 aio/3
    364 ? 00:00:01 ata/0
    384 ? 00:00:00 ata/1
    385 ? 00:00:00 ata/2
    386 ? 00:00:00 ata/3
    387 ? 00:00:00 ata_aux
    452 ? 00:00:00 scsi_eh_0
    453 ? 00:00:00 scsi_eh_1
    454 ? 00:00:00 scsi_eh_2
    546 ? 00:00:00 scsi_eh_3
    547 ? 00:00:00 scsi_eh_4
    553 ? 00:00:02 scsi_eh_5
    555 ? 00:00:00 scsi_eh_6
    656 ? 00:00:00 kjournald2
    680 ? 00:00:00 udevd
    710 ? 00:00:00 rt61pci
    1973 ? 00:00:00 khpsbpkt
    2031 ? 00:00:00 ksuspend_usbd
    2032 ? 00:00:00 khubd
    2097 ? 00:00:00 kpsmoused
    2102 ? 00:00:00 knodemgrd_0
    4346 ? 00:00:00 syslog-ng
    4347 ? 00:00:00 syslog-ng
    4369 ? 00:00:00 crond
    4384 ? 00:00:00 dbus-daemon
    4387 ? 00:00:00 hald
    4390 ? 00:00:00 console-kit-dae
    4391 ? 00:00:00 hald-runner
    4481 ? 00:00:00 hald-addon-inpu
    4486 ? 00:00:00 hald-addon-acpi
    4487 ? 00:00:00 hald-addon-stor
    4489 ? 00:00:00 hald-addon-stor
    4503 ? 00:00:00 NetworkManager
    4514 ? 00:00:00 wpa_supplicant
    4516 ? 00:00:00 nm-system-setti
    4523 ? 00:00:00 portmap
    4526 ? 00:00:00 famd
    4536 ? 00:00:00 gdm-binary
    4537 ? 00:00:00 gdm-binary
    4543 tty7 00:00:52 Xorg
    4560 tty1 00:00:00 agetty
    4561 tty2 00:00:00 agetty
    4562 tty3 00:00:00 agetty
    4563 tty4 00:00:00 agetty
    4564 tty5 00:00:00 agetty
    4565 tty6 00:00:00 agetty
    4601 ? 00:00:00 dhcpcd
    4614 ? 00:00:00 gnome-keyring-d
    4626 ? 00:00:00 gnome-session
    4648 ? 00:00:00 dbus-launch
    4649 ? 00:00:00 dbus-daemon
    4655 ? 00:00:00 gconfd-2
    4658 ? 00:00:00 gnome-keyring-d
    4661 ? 00:00:00 gnome-settings-
    4662 ? 00:00:01 metacity
    4665 ? 00:00:00 gnome-panel
    4667 ? 00:00:00 gvfsd
    4670 ? 00:00:00 nautilus
    4674 ? 00:00:00 bonobo-activati
    4678 ? 00:00:00 gvfs-fuse-daemo
    4685 ? 00:00:00 gnome-power-man
    4690 ? 00:00:00 nm-applet
    4713 ? 00:00:01 gnome-screensav
    4717 ? 00:00:00 gvfs-hal-volume
    4719 ? 00:00:00 gvfs-gphoto2-vo
    4721 ? 00:00:00 gvfsd-trash
    4732 ? 00:00:00 gvfsd-burn
    4740 ? 00:00:00 wnck-applet
    4744 ? 00:00:00 cpufreq-applet
    4747 ? 00:00:00 clock-applet
    4749 ? 00:00:07 multiload-apple
    4752 ? 00:00:00 mixer_applet2
    4753 ? 00:00:01 sensors-applet
    4755 ? 00:00:00 notification-ar
    4845 ? 00:00:00 firefox
    4857 ? 00:00:00 run-mozilla.sh
    4863 ? 00:07:01 firefox-bin
    4906 ? 00:00:00 gnome-terminal
    4909 ? 00:00:00 gnome-pty-helpe
    4910 pts/0 00:00:00 bash
    4912 pts/0 00:00:00 su
    4913 pts/0 00:00:00 bash
    4953 pts/0 00:00:00 su
    4954 pts/0 00:00:00 bash
    4958 pts/0 00:00:00 su
    4959 pts/0 00:00:00 bash
    4984 pts/0 00:00:00 vim
    4999 pts/0 00:00:00 ps
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    Last edited by degmic71 (2009-04-01 03:44:29)

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