Constant speed for an unbalanced load

I have a machine that uses a Dart 253g to drive a dc motor. The arm if an offset arm that rotates.. We have tried to balance the arm the best we could but the load is still off. What happens is as the heavier part of the arm is on the upswing of the motion, the drive cranks up the torque and pushes it up and over the peak of the rotation. The problem is, on the way back down, the load takes off and "freewheels' around until the upswing starts again. Would a constant speed drive help eliminate this? This machine has no feedback on the arm 
Thanks in advance 
Ken 

You will need a regen or 4-quadrant drive to provide dynamic braking.  A tachometer will always help with speed regulation(only on the upswing with your current drive, though).

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    Apr 20 20:40:49 absent crashdump[864]: 0x9021c000 - 0x90269fff com.apple.CoreText 1.0.3 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreText.framework/Versions/A/CoreText
    Apr 20 20:40:49 absent crashdump[864]: 0x90294000 - 0x90345fff ATS /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/ATS
    Apr 20 20:40:49 absent crashdump[864]: 0x90374000 - 0x9072ffff com.apple.CoreGraphics 1.258.61 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/CoreGraphics
    Apr 20 20:40:49 absent crashdump[864]: 0x907bc000 - 0x90895fff com.apple.CoreFoundation 6.4.7 (368.28) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
    Apr 20 20:40:49 absent crashdump[864]: 0x908de000 - 0x908defff com.apple.CoreServices 10.4 (???) /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
    Apr 20 20:40:49 absent crashdump[864]: 0x908e0000 - 0x909e2fff libicucore.A.dylib /usr/lib/libicucore.A.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x90a3c000 - 0x90ac0fff libobjc.A.dylib /usr/lib/libobjc.A.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x90aea000 - 0x90b5cfff com.apple.framework.IOKit 1.4 (???) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
    Apr 20 20:40:49 absent crashdump[864]: 0x90b72000 - 0x90b84fff libauto.dylib /usr/lib/libauto.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x90b8b000 - 0x90e62fff com.apple.CoreServices.CarbonCore 681.9 /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore
    Apr 20 20:40:49 absent crashdump[864]: 0x90ec8000 - 0x90f48fff com.apple.CoreServices.OSServices 4.1 /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices
    Apr 20 20:40:49 absent crashdump[864]: 0x90f92000 - 0x90fd3fff com.apple.CFNetwork 129.20 /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwo rk.framework/Versions/A/CFNetwork
    Apr 20 20:40:49 absent crashdump[864]: 0x90fe8000 - 0x91000fff com.apple.WebServices 1.1.2 (1.1.0) /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/WebServ icesCore.framework/Versions/A/WebServicesCore
    Apr 20 20:40:49 absent crashdump[864]: 0x91010000 - 0x91091fff com.apple.SearchKit 1.0.5 /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchK it.framework/Versions/A/SearchKit
    Apr 20 20:40:49 absent crashdump[864]: 0x910d7000 - 0x91100fff com.apple.Metadata 10.4.4 (121.36) /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata
    Apr 20 20:40:49 absent crashdump[864]: 0x91111000 - 0x9111ffff libz.1.dylib /usr/lib/libz.1.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91122000 - 0x912ddfff com.apple.security 4.6 (29770) /System/Library/Frameworks/Security.framework/Versions/A/Security
    Apr 20 20:40:49 absent crashdump[864]: 0x913dc000 - 0x913e5fff com.apple.DiskArbitration 2.1 /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
    Apr 20 20:40:49 absent crashdump[864]: 0x913ec000 - 0x91414fff com.apple.SystemConfiguration 1.8.3 /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration
    Apr 20 20:40:49 absent crashdump[864]: 0x91427000 - 0x91432fff libgcc_s.1.dylib /usr/lib/libgcc_s.1.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91437000 - 0x9143ffff libbsm.dylib /usr/lib/libbsm.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x914fb000 - 0x914fbfff com.apple.ApplicationServices 10.4 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Application Services
    Apr 20 20:40:49 absent crashdump[864]: 0x914fd000 - 0x91535fff com.apple.AE 1.5 (297) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ AE.framework/Versions/A/AE
    Apr 20 20:40:49 absent crashdump[864]: 0x91550000 - 0x91622fff com.apple.ColorSync 4.4.9 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ColorSync.framework/Versions/A/ColorSync
    Apr 20 20:40:49 absent crashdump[864]: 0x91675000 - 0x91706fff com.apple.print.framework.PrintCore 4.6 (177.13) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ PrintCore.framework/Versions/A/PrintCore
    Apr 20 20:40:49 absent crashdump[864]: 0x9174d000 - 0x91804fff com.apple.QD 3.10.24 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ QD.framework/Versions/A/QD
    Apr 20 20:40:49 absent crashdump[864]: 0x91841000 - 0x9189ffff com.apple.HIServices 1.5.3 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ HIServices.framework/Versions/A/HIServices
    Apr 20 20:40:49 absent crashdump[864]: 0x918ce000 - 0x918effff com.apple.LangAnalysis 1.6.1 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ LangAnalysis.framework/Versions/A/LangAnalysis
    Apr 20 20:40:49 absent crashdump[864]: 0x91903000 - 0x91928fff com.apple.FindByContent 1.5 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ FindByContent.framework/Versions/A/FindByContent
    Apr 20 20:40:49 absent crashdump[864]: 0x9193b000 - 0x9197dfff com.apple.LaunchServices 182 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ LaunchServices.framework/Versions/A/LaunchServices
    Apr 20 20:40:49 absent crashdump[864]: 0x91999000 - 0x919adfff com.apple.speech.synthesis.framework 3.3 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ SpeechSynthesis.framework/Versions/A/SpeechSynthesis
    Apr 20 20:40:49 absent crashdump[864]: 0x919bb000 - 0x91a01fff com.apple.ImageIO.framework 1.5.4 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/ImageIO
    Apr 20 20:40:49 absent crashdump[864]: 0x91a18000 - 0x91adffff libcrypto.0.9.7.dylib /usr/lib/libcrypto.0.9.7.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91b2d000 - 0x91b42fff libcups.2.dylib /usr/lib/libcups.2.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91b47000 - 0x91b65fff libJPEG.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libJPEG.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91b6b000 - 0x91c22fff libJP2.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libJP2.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91c71000 - 0x91c75fff libGIF.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libGIF.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91c77000 - 0x91cdffff libRaw.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libRaw.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91ce4000 - 0x91d21fff libTIFF.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libTIFF.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91d28000 - 0x91d41fff libPng.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libPng.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91d46000 - 0x91d49fff libRadiance.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libRadiance.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91d4b000 - 0x91e29fff libxml2.2.dylib /usr/lib/libxml2.2.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x91e49000 - 0x91e49fff com.apple.Accelerate 1.2.2 (Accelerate 1.2.2) /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
    Apr 20 20:40:49 absent crashdump[864]: 0x91e4b000 - 0x91f30fff com.apple.vImage 2.4 /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.fr amework/Versions/A/vImage
    Apr 20 20:40:49 absent crashdump[864]: 0x91f38000 - 0x91f57fff com.apple.Accelerate.vecLib 3.2.2 (vecLib 3.2.2) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/vecLib
    Apr 20 20:40:49 absent crashdump[864]: 0x91fc3000 - 0x92031fff libvMisc.dylib /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvMisc.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x9203c000 - 0x920d1fff libvDSP.dylib /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvDSP.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x920eb000 - 0x92673fff libBLAS.dylib /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libBLAS.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x926a6000 - 0x929d1fff libLAPACK.dylib /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libLAPACK.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x92a01000 - 0x92aeffff libiconv.2.dylib /usr/lib/libiconv.2.dylib
    Apr 20 20:40:49 absent crashdump[864]: 0x92bbb000 - 0x92de6fff com.apple.Foundation 6.4.8 (567.29) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
    Apr 20 20:40:49 absent crashdump[864]: 0x936ff000 - 0x9371ffff com.apple.DirectoryService.Framework 3.1 /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryServi ce
    Apr 20 20:40:49 absent crashdump[864]: 0x94caa000 - 0x94ccafff com.apple.NetInfo 1.0.0 (???) /System/Library/PrivateFrameworks/NetInfo.framework/Versions/A/NetInfo
    Apr 20 20:40:49 absent crashdump[864]: 0x94f6e000 - 0x94f7dfff com.apple.DSObjCWrappers.Framework 1.1 /System/Library/PrivateFrameworks/DSObjCWrappers.framework/Versions/A/DSObjCWra ppers
    Apr 20 20:40:49 absent crashdump[864]: 0x970dc000 - 0x970defff com.apple.ContentIndex.framework 1.0.1 /System/Library/PrivateFrameworks/ContentIndex.framework/Versions/A/ContentInde x
    Apr 20 20:40:49 absent crashdump[864]: Apr 20 20:40:49 absent crashdump[864]: load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    load_hdi: timed out waiting for IOKit to finish matching
    load_hdi: timed out waiting for driver to load
    2007-04-20 20:43:23.431 diskimages-helper[865] ERROR: unable to load disk image driver - 0xE00002C0/-536870208 - Device not configured.
    Finishing...
    PowerBook Mac OS X (10.4.9)

    Today I did a bit more troubleshooting. From the Terminal, the command-line tools for working with DMG files gave me the same error. So, I did a Safe Boot of my Mac, holding the SHIFT key from the tone at restart until the gray loading screen appeared. It took quite a while to get to the login screen, and towards the end of the wait, the fans on my G5 were running at full-speed. I was able to open disk images, so I repaired permissions and then reinstalled the latest security update. Rebooted back into my normal desktop and everything is working now. I am not sure what the problem was. It's fixed now. Hope this helps.

  • My MacBook Pro (Retina, Mid 2012) is too slow after installing Yosemite version 10.10.1. All programs take for ever to load especially Safari and even chrome. I regret upgrading to yosemite, it was all fine with Maverick. Any suggestions ? ThankYou

    My MacBook Pro (Retina, Mid 2012) is too slow after installing Yosemite version 10.10.1. All programs take for ever to load especially Safari and even chrome. I regret upgrading to yosemite, it was all fine with Maverick. Any suggestions ? ThankYou

    1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
    Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
    2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
    There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
    3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
    You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
    In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
    You may not be able to understand the script yourself. But variations of the script have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message.
    Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
    4. Here's a summary of what you need to do, if you choose to proceed:
    ☞ Copy a line of text in this window to the Clipboard.
    ☞ Paste into the window of another application.
    ☞ Wait for the test to run. It usually takes a few minutes.
    ☞ Paste the results, which will have been copied automatically, back into a reply on this page.
    The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
    5. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
    6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
    7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
    Triple-click anywhere in the line of text below on this page to select it:
    PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(Software Hardware Memory Diagnostics Power FireWire Thunderbolt USB Fonts SerialATA 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports ' com.clark.\* \*dropbox \*genieo\* \*GoogleDr\* \*k.AutoCAD\* \*k.Maya\* vidinst\* ' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 "` route -n get default|awk '/e:/{print $2}' `" 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB ' com.adobe.AAM.Updater-1.0 com.adobe.AAM.Updater-1.0 com.adobe.AdobeCreativeCloud com.adobe.CS4ServiceManager com.adobe.CS5ServiceManager com.adobe.fpsaud com.adobe.SwitchBoard com.adobe.SwitchBoard com.apple.aelwriter com.apple.AirPortBaseStationAgent com.apple.FolderActions.enabled com.apple.installer.osmessagetracing com.apple.mrt.uiagent com.apple.ReportCrash.Self com.apple.rpmuxd com.apple.SafariNotificationAgent com.apple.usbmuxd com.citrixonline.GoToMeeting.G2MUpdate com.google.keystone.agent com.google.keystone.daemon com.microsoft.office.licensing.helper com.oracle.java.Helper-Tool com.oracle.java.JavaUpdateHelper com.oracle.java.JavaUpdateHelper org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.startx ' ' 879294308 4071182229 461455494 3627668074 1083382502 1274181950 1855907737 2758863019 1848501757 464843899 3694147963 1233118628 2456546649 2806998573 2778718105 2636415542 842973933 2051385900 3301885676 891055588 998894468 695903914 1443423563 4136085286 523110921 2883943871 3873345487 ' 51 5120 files );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^\([0-9]+\) /,"");n=$0;getline;} $NF=="'${p[26]}')" { sub(/.$/,"",$NF);print n;exit;} ' `;f=('\n%s: %s\n' '\n%s\n\n%s\n' '\nRAM details\n%s\n' %s\ %s '%s\n-\t%s\n' );S0() { echo ' { q=$NF+0;$NF="";u=$(NF-1);$(NF-1)="";gsub(/^ +| +$/,"");if(q>='${p[$1]}') printf("%s (UID %s) is using %s '${p[$2]}'",$0,u,q);} ';};s=(' s/[0-9A-Za-z._]+@[0-9A-Za-z.]+\.[0-9A-Za-z]{2,4}/EMAIL/g;/faceb/s/(at\.)[^.]+/\1NAME/g;/\/Shared/!s/(\/Users\/)[^ /]+/\1USER/g;s/[-0-9A-Fa-f]{22,}/UUID/g;' ' s/^ +//;/de: S|[nst]:/p;' ' {sub(/^ +/,"")};/er:/;/y:/&&$2<'${p[10]} ' 1s/://;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: (E[^m]|[^EO])|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[11]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Genesy|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/ / { n++;print;} END { if(n<10) print "com.apple.";} ' ' { sub(/ :/,"");print|"tail -n'${p[12]}'";} ' ' NR==2&&$4<='${p[13]}' { print $4;} ' ' END { $2/=256;if($2>='${p[15]}') print int($2) } ' ' NR!=13{next};{sub(/[+-]$/,"",$NF)};'"`S0 21 22`" 'NR!=2{next}'"`S0 37 17`" ' NR!=5||$8!~/[RW]/{next};{ $(NF-1)=$1;$NF=int($NF/10000000);for(i=1;i<=3;i++){$i="";$(NF-1-i)="";};};'"`S0 19 20`" 's:^:/:p' '/\.kext\/(Contents\/)?Info\.plist$/p' 's/^.{52}(.+) <.+/\1/p' ' /Launch[AD].+\.plist$/ { n++;print;} END { if(n<200) print "/System/";} ' '/\.xpc\/(Contents\/)?Info\.plist$/p' ' NR>1&&!/0x|\.[0-9]+$|com\.apple\.launchctl\.(Aqua|Background|System)$/ { print $3;} ' ' /\.(framew|lproj)|\):/d;/plist:|:.+(Mach|scrip)/s/:[^:]+//p ' '/^root$/p' ' !/\/Contents\/.+\/Contents|Applic|Autom|Frameworks/&&/Lib.+\/Info.plist$/ { n++;print;} END { if(n<1100) print "/System/";} ' '/^\/usr\/lib\/.+dylib$/p' ' /Temp|emac/{next};/(etc|Preferences|Launch[AD].+)\// { sub(".(/private)?","");n++;print;} END { split("'"${p[41]}"'",b);split("'"${p[42]}"'",c);for(i in b) print b[i]".plist\t"c[i];if(n<500) print "Launch";} ' ' /\/(Contents\/.+\/Contents|Frameworks)\/|\.wdgt\/.+\.([bw]|plu)/d;p;' 's/\/(Contents\/)?Info.plist$//;p' ' { gsub("^| |\n","\\|\\|kMDItem'${p[35]}'=");sub("^...."," ") };1 ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[43]}'{$2=$2-1;print}' ' BEGIN { i="'${p[26]}'";M1='${p[16]}';M2='${p[18]}';M3='${p[31]}';M4='${p[32]}';} !/^A/{next};/%/ { getline;if($5<M1) a="user "$2"%, system "$4"%";} /disk0/&&$4>M2 { b=$3" ops/s, "$4" blocks/s";} $2==i { if(c) { d=$3+$4+$5+$6;next;};if($4>M3||$6>M4) c=int($4/1024)" in, "int($6/1024)" out";} END { if(a) print "CPU: "a;if(b) print "I/O: "b;if(c) print "Net: "c" (KiB/s)";if(d) print "Net errors: "d" packets/s";} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|BKAg|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/ )||(/v6:/&&$2!~/A/ ) ' ' $1~"lR"&&$2<='${p[25]}';$1~"li"&&$3!~"wpa2";' ' BEGIN { FS=":";p="uniq -c|sed -E '"'s/ +\\([0-9]+\\)\\(.+\\)/\\\2 x\\\1/;s/x1$//'"'";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]$1|p;b=b$1;} END { close(p);if(b) print("\n\t* Code injection");} ' ' NR!=4{next} {$NF/=10240} '"`S0 27 14`" ' END { if($3~/[0-9]/)print$3;} ' ' BEGIN { L='${p[36]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n   "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n   [N/A]";"cksum "F|getline C;split(C, A);C="checksum "A[1];"file -b "F|getline T;if(T!~/^(AS.+ (En.+ )?text(, with v.+)?$|(Bo|PO).+ sh.+ text ex|XM)/) F=F" ("T", "C")";else F=F" ("C")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n   ...and %s more line(s)\n",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / / { print "'"${p[28]}"'";exit;};1;' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/\(L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9|"sort|uniq";} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?Info\.plist$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ /V/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' ' /^find: /d;p;' "`S0 44 45`" ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ *$/d;s/^ */   /;' ' s/^.+ |\(.+\)$//g;p ' '/\.(appex|pluginkit)\/Contents\/Info\.plist$/p' ' /2/{print "WARN"};/4/{print "CRITICAL"};' ' /EVHF|MACR|^s/d;s/^.+: //p;' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps crontab iotop top pkgutil 'PlistBuddy 2>&1 -c "Print' whoami cksum kextstat launchctl smcDiagnose sysctl\ -n defaults\ read stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' pluginkit scutil dtrace profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil lsof test osascript\ -e );c2=(com.apple.loginwindow\ LoginHook '" /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr , \\\n" 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name In*t -exec '"${c1[14]}"' :CFBundleDisplayName" {} \;|sort|uniq' '~ $TMPDIR.. \( -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 \)' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' :${p[35]}\" :Label\" '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$(RefProc): \$Message' -k Sender Req 'fsev|kern|launchd' -k RefProc Rne 'Aq|WebK' -k Message Rne 'Goog|ksadm|probe|Roame|SMC:|smcD|sserti|suhel| VALI|ver-r|xpma' -k Message Req 'abn|bad |Beac|caug|corru|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|NVDA\(|pagin|proc: t|Roamed|rror|SL|TCON|Throttli|tim(ed? ?|ing )o|WARN' " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cght] ! -name .?\* ! -name \*ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true \) -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '/S*/*/Ca*/*xpc* >&- ||echo No' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,Ex}* {/,}L*/{A*d,Ca*/*/Ex,Co{mpon,reM},Ex,In{p,ter},iTu*/*P,Keyb,Mail/B,Pr*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -path \\*s/Resources -prune -o -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,mach_i*/*,pam.d/*,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/Lau*/*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' '+c0 -i4TCP:0-1023' com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' "+c0 -l|awk '{print(\$1,\$3)}'|sort|uniq -c|sort -n|tail -1|awk '{print(\$2,\$3,\$1)}'" -m 'L*/{Con*/*/Data/L*/,}Pref* -type f -size 0c -name *.plist.???????|wc -l' kern.memorystatus_vm_pressure_level '3>&1 >&- 2>&3' " -F '\$Time \$Message' -k Sender kernel -k Message CSeq 'n Cause: -' " );N1=${#c2[@]};for j in {0..9};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=(Restricted\ files Hidden\ apps 'Elapsed time (s)' POST Battery Safari\ extensions Bad\ plists 'High file counts' User Heat System\ load boot\ args FileVault Diagnostic\ reports Log 'Free space (MiB)' 'Swap (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports kexts Daemons Agents XPC\ cache Startup\ items Admin\ access Root\ access Bundles dylibs Apps Font\ issues Inserted\ dylibs Firewall Proxies DNS TCP/IP Wi-Fi Profiles Root\ crontab User\ crontab 'Global login items' 'User login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching SATA Descriptors App\ extensions Lockfiles Memory\ pressure SMC Shutdowns );N3=${#l[@]};for i in 0 1 2;do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { id -G|grep -qw 80;v[1]=$?;((v[1]==0))&&sudo true;v[2]=$?;v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};A'$((7+i))'() { v=` eval sudo "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};';done;A9(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=;((v['$((i+1))']==0))||{ v=No;false;};};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Fv "${v[$1]}"<<<"$v"`;};C0() { [[ "$v" ]]&&sed -E "$s"<<<"$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v"|sed -E "$s";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "${s[63]}"<<<"$v"`&&C1 1 $1;};for i in 1 2 7 8;do for j in 0 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;D20 0 $((N1+1)) 2;D10 0 $N1 1;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;D13 0 $((N1+9)) 59 50;for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 1 10 7 9;D13 1 11 8 10;B1&&D73 19 53 67 55;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 54 12 56;D23 5 14 12 14;D22 6 36 13 15;D22 20 52 66 54;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D82 35 49 61 51;D82 11 17 17 20;for i in 0 1;do D82 28 $((N2+i)) 45 $((N4+i));done;};D22 12 44 54 45;D22 12 39 15 21;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;A1 17 41 20;B7 5;C3 22;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B1&&{ A8 18 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;D13 4 21 24 26;B4 4 12 26;B3 4 13 27;A1 4 22 29;B7 12;B2 14;A4 14 6 52 14;B2 15;B6 14 15 4;B3 0 0 30;C3 29;A1 4 23 27;B7 13;C3 30;B3 4 0 65;A3 14 6 32 0;B4 0 16 11;A1 26 50 64;B7 16;C3 52;D13 24 24 32 31;D13 25 37 32 33;A2 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D73 21 0 32 19;D73 10 42 32 40;D82 29 35 46 39;};D23 14 1 62 42;D12 34 43 53 44;D12 22 20 32 25;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 21 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 33 34 42 37;B1&&D83 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 10 42 32 41;D13 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 21 48 49 49;B3 4 22 57;A1 21 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;D12 4 51 32 53;D23 22 9 37 7;A9;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
    Copy the selected text to the Clipboard by pressing the key combination command-C.
    8. Launch the built-in Terminal 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. Click Utilities, then Terminal in the icon grid.
    Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
    9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
    exec bash
    and press return. Then paste the script again.
    10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return  three times at the password prompt. Again, the script will still run.
    If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
    11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
    [Process completed]
    to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report what happened. No harm will be done.
    12. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
    At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
    If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
    13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
    14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
    Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

  • Ideal fan speeds for a 20" iMac

    Hi,
         I have a mid 2007 2 GHZ 20" Intel iMac, I recently had some unexpected shut down issues which I traced to a defective optical drive fan. I have SMC fan control loaded and it tells me that the DVD fan went off-on-off-on, I also ran an extended hardware test and that confirmed the bad fan, I replaced the fan and that was the end of my problems. However, I have been fooling with the fan speeds and now I am wondering what the ideal speeds for all three fans in my machine are? Can anyone help?
    Thanks,
    Rolly

    I think you have to balance the need to run cooler against running the fans so fast you wear out the motors quickly. In general, it's probably best, at least for prolonged periods, not to run them any higher than maybe ~400 rpms above the defaults. But that's just my own guess. I don't have any statistics on what fan speeds are ideal for attaining that balance.
    Then again, fans are much cheaper to replace than drives, logic boards, or power supplies.
    I have maybe 5 or 6 pre-sets, including the defaults. This is one setting I often use in summer, but I may sometimes go a bit higher in very hot weather. I also have a fan running at the back, which helps keep the internal temps lower and allows me to run the internal fans slower than I would otherwise. In extremely hot weather, it's pointless to blow hot air around faster. When it's like that I sleep the computer more often.
    These are the defaults on my 21.5

  • Can't select "Variable Speed" for Still Image Motion

    I am using FCP 5.1 to add motion to still images. I've placed my still images on the timeline and added the appropriate keyframes in the Motion tab of the Viewer to Scale, Rotate, and move the stills on screen to my liking. But the speed is locked to "Constant," and I want to change that.
    Specifically, am rolling a still image on-screen, freezing it in the middle of the screen a few seconds, and then rolling it off-screen. Doing this is easy: I just add a keyframe and type in the off-screen coordinates, then add another keyframe and type in coordinates somewhere on screen. But I want to vary the speed that the image rolls on-screen, so it moves on-screen quickly but then gradually slows down until it finally stops (freezes) in the middle of the screen.
    Unfortunately, the "Setting" popup menu under "Time Remap" in the Motion tab of the viewer is grayed out and locked to "Constant Speed" (and yes, my still image clip is indeed selected and being displayed in the view). I cannot figure out how to unlock that popup so I can select variable speed.
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    Many thanks.

    Why so much sarcasm in this FCP forum, Studio X?
    Yes, it was in the manual, which by the way is quite large. And I didn't say how long it took me to spot that in the manual either -- a long time. I didn't spot it the first time I had read through that section (yes, I had read it before). And the fact is, you didn't know it either, otherwise you may have cared to point it out (for not only myself, but for others reading this forum too).
    I participate in numerous other forums on other sites. Many times, people ask questions that are very simplistic to me -- I know the answers and I know those people putting forth the questions could easily have looked up the answer. Nevertheless, I take time to be helpful to others. For truly, some day I may be in their shoes, lacking time to read every part of every manual out there.
    I am therefore thankful to those who likewise respond in a tactful manner to my queries, with the productive aim of helping others rather than condemning them. Thank you, David Harbsmeier, for being consistently positive and very helpful in this forum!

  • Acceptable range of speeds for this line.

    Dear Forum,
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    Test1 comprises of Best Effort Test:  -provides background information.
     Download  Speed
     1825 Kbps
    0 Kbps 2000 Kbps
    Max Achievable Speed
     Download speedachieved during the test was - 1825 Kbps
     For your connection, the acceptable range of speeds is 400-2000 Kbps.
     Additional Information:
     Your DSL Connection Rate :2528 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
     IP Profile for your line is - 2000 Kbps
    Write down your test results and use the table below to check that your throughput speed is in the right range for your connection speed.
    Connection rate downstream test result:     Throughput speed you should expect:               
    288Kbps                                                             50Kbps to 250Kbps
    288Kbps to 576Kbps                                            50Kbps to 500Kbps
    576Kbps to 1152Kbps                                         200Kbps to 1000Kbps
    1152Kbps to 2272Kbps                                       400Kbps to 2000Kbps
    2272Kbps to 8128Kbps                                       600Kbps to 7150Kbps
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    I used to, prior to a length of main cable being replaced back in May of this year, between the exchange and the street box, get a DSL of between 2648Kbps and 3020Kbps.  When the cable was replaced, they replaced 9Guage with 5Guage.  Also it has been found out by two engineer's that about 325Mtrs from my property that there is a sudden drop of 1000Kbps.  Both BT and Openreach seem to think that this is acceptable.  I don't and niether do my neiboughers, who are also affected.
    Please get back to me with a reasonable answer to this.  Not like when I dealt with Mods in the past and they would only answer one part of the problem.
     Thanks in advance.

    The bit loading is not great on that liine ....
    And it's little to do with the metallic path specification you referred to in another post.
    One thing is certain, Openreach operate to strict codes of practice, and don't just install any old wire .... 
    The noise margin is not bad, target is 6db ... but the problem there is that you have a high forward error count
    which demonstrates a profound level of interleave, which does cause some latency.
    It's the bitloading that's causing the high error count.
    Sometimes a RF3 filter, fitted by Openreach can cure some of this ... sometimes not.
    But the CRC, cyclic redundancy checks, are re-transmitted packets, and therefore do absorb bandwidth.
    Also the errored second count is high, these are seconds which have seen bad error rates.
    I don't think you'd benefit by going into the test socket either, as most errors are downstream and margin is
    fair, the CRC up errors are false, a result of poor scripting in the hub firmware.
    You could try buying quality line filters, or using a v1 splitter socket face, but to be honest, your line is your line,
    and that's why the broadband is line adaptive ... to cater for all quality levels of lines.
    Yours is not the best I've seen.
    You could try a reset at midday, often gaining a higher sync rate, as much as 400-500kbps.
    No more than 3 resets in 24 hours, DLM will downgrade the IP.
    Glad to have helped you ... perhaps not what you wanted to hear though.   

  • Mac Pro, Fans fire up full speed for no reason - randomly!

    So, here is another fan issue with the Mac Pro, and I am at a loss. Perhaps someone can help me with this one. I have a Mac Pro I bought in mid '07, dual 2.66 GHz. I have 2 7300GT video cards, which don't have fans of their own to be making the noise...
    The computer, when left doing nothing will ramp up full speed for God knows what reason. There is usually almost nothing open for applications, and no major processes running. Menu Meters shows the processor load to be minimal, not a heavy load that would cause heat-issues from processors working hard.
    There is really no way to get the fans to slow back down either. The machine is still fully functional, I can open, close or work on software, so nothing is "frozen". I have quit all applications to no avail. The machine will not go to sleep when this occurs, and half the time will not power off using the shut down menu selection either; requiring a forced shut down. Upon reboot, it is fine... (until it decides once again to take off).
    This is not the fans roaring when waking from sleep issue, I have had that one as well (bad ram).
    Thoughts?

    Last night, after I shut down, my fans slowly ramped up into high gear. They went to full rotation, and I let it whirr for four or five minutes, thinking it would shut itself off. It never did, so I just pulled the plug on the CPU. I plugged it back in five seconds later, and it stayed shut down after that.
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