Resetting PRAM Messed Up My Mac!! :(
Noticed a couple of problem's after resetting mu PRAM. After I reset my PRAM my subwoofer no longer works as it did before I reset my PRAM and when I power up my Mac Pro Tower it stars and then when it's starting it chimes and does another "restart".
Before I reset my PRAM it would just start up once and not restart. What's going On? And what is NVAM? Do I need to reset that too?
Please help.
Ok, so resetting PRAM and NVRAM are done at the same time, so in that case I did it and that's when this problem started. Loss of Subwoofer and Computer chime and restart after powering upp the computer.
Anyone got any idea what's going on here? This is getting frustrating!
Similar Messages
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How to reset PRAM of a remote Mac
How do I reset PRAM of a remote Mac? (It's a Mac Mini 1,1 running 10.5.8)
I can connect to that remote Mac via VNC and SSH.
And of course, right after reset, I need it to automatically reboot and allow VNC and SSH access.
Thanks!Hello, I know of no way to do that, since it's done without any OS running at all.
-
Will resetting pram and nvram on Mac osx help download problemss?
I have a new imac which I play Sims 3 on. The game plays really well but I am unable to download content from the official EA exchange website. When I try to do this by clicking on the link everything freezes and I get the spinning rainbow curser.
To troubleshoot this I have uninstalled, reinstalled and added latest patch. I have tried safari and firefox browsers.
A person from EA help said to reset the PRAM and NVRAM. I have been told how to do this, but am a bit worried as it sounds a bit extreme? The imac is only 3 days old and I don't want to break anythingPhew problem solved! Instead of using Safari I had to use Firefox. But then I had to select some boxes...I did not do that the other times!
If anyone else has that problem the answer is
Open firefox
-firefox
-preferences
-Applications
Then scroll down to Sims3 and select Use The Sims3 (default)
I have no idea what it all means but it works. -
working in adobe illustrator - computer crashed - will not soft boot or reset PRAM - should i reinstall from CD snow leopard 10.6.3? I have an extra hard drive in my MAC with time machine on it set to do auto back ups. How do i recover ?
Well first you have to figure out what is wrong with the machine and solve that problem first.
Your post is very vague on what occured, and there are many types of "crashes" it really depends upon what see on the screen and what the hardware does, we can't see it to tell you, so you have to tell us.
I suggest you run through these user tips and provide more information about your hardware.
Disconnect the TimeMachine drive for now
..Step by Step to fix your Mac
Help us to help you on these forums
Create a data recovery/undelete external boot drive
If this is going way over your head, there are local PC/Mac techs that will assist you for a fee, Apple only does hardware repairs and is advised to use them if you discover it is, especially if under warranty/AppleCare.
Hard drive and RAM upgrades can be handled yourself or by a outside tech in many older models of Mac, but don't expect Apple to cover the new parts.
Install/upgrade RAM or storage drive in Mac's -
Reset PRAM, now monitor shows just a circle with a slash through it
Big problem. My iBook clamshell has a battery that just started sometimes charging and sometimes uncharging while computer was plugged into power adapter. Then the computer just "blacked out" a few times while plugged into power adapter.
I bought a new power adapter, but still had the problem with the uncharging battery. One time the percentage amount of a charge would go down when it was being used while plugged into power adapter, the next time I used it the percentage amount might go back up to 100%. Money's really tight (I'm working part time & paying for emergency medical expenses) so instead of buying a new battery I dug out some instructions that helped my other clamshell that started "blacking out" a couple of years ago. At that time I was given a link to an article on resetting PRAM, and I'd printed out and kept the article.
While the iBook was starting up I held down the keys: Command, Option, P and R. You're supposed to hold down the keys until you heard the start up sound a 2nd time. Well, I messed up and held them down until I heard the start up sound 3 times. Maybe that was a fatal error - something screwed things up.
The monitor went from black to pale blue, but instead of getting the Apple icon as start up began I got a circle with a slash line through it. Nothing else happened. I had that circle mark for about 15 minutes - the computer never went into sleep mood and finally I improperly turned it off by using the power button.
I turned the computer on again, hoping the problem had gone away. I got the pale blue screen showing the circle with a slash mark. I waited awhile, thinking something might start happening after a delay. And once again I improperly turned the computer off using the power key. I won't turn it on again unless I'm given a possible solution.
I bought this 2nd iBook because it had an Airport card, and I take it to the library to use free WiFi. I've been entering an important manuscript that I don't want to use.
Is this fixable? This has me big-time frightened.Hi Karen,
If your computer is back from the dead, then possibly your kernel panic issue has been resolved. Maybe there were software or directory issues that are now fixed.
It wouldn't hurt to go ahead and open Disk Utility and repair permissions. Disk Utility should be in the Utilities folder in your applications folder.
Repairing permissions is something you should do after every software download because permissions are changed for the download process. You repair permissions on the First Aid tab, and you want to repair them several times until there is nothing left to repair. While in Disk utility, you can also verify your hard drive and check the SMART status and make sure it doesn't have any problems. I would recommend you leave Disk Utility in the Dock so it will be handy next time you need it.
As long as your hard drive is in good shape, it won't have hurt anything to have skipped the step of verifying the drive. However, it is prudent to check on the hard drive before downloading software, because if the hard drive is failing or something, your priority will be to save the data off of it. A failing drive is unpredictable, and puts you at risk of losing everything. If you elect to keep Disk Utility in your Dock, you can check your drive anytime you like.
You can also do a Safe Boot as a maintenance item every so often:
http://support.apple.com/kb/HT1564?viewlocale=en_US
http://support.apple.com/kb/HT1455?viewlocale=en_US
http://support.apple.com/kb/TS1884?viewlocale=en_US
It sounds like maybe you reinstalled the OS by doing an Archive and Install, which would have installed a fresh copy of the OS while preserving all your settings and data.
Not sure why you can't connect to the internet. First check to be sure your airport card is plugged in and recognized. If it is, you should be able to go to System Preferences>Network and use the assistant to help you to reconnect. It may be you'd have to set up a new location or something like that.
One thing you should do is to put in place a backup strategy. If an external hard drive is beyond your means right now, at least try to find a USB flash drive. Office depot has 4 GB drives on sale for around $10 every so often, and you can find even better deals on line. You can store a lot of documents in 4 GB flash drive, and you would not have the worry of potentially losing everything if your computer dies. I am really glad you got your document back after all the hundreds of hours it took to create it, but there was a real danger that you could have lost it and all your other data.
Once you get your flash drive, use Disk Utility to format it (they usually come pre-formatted for Windows). You want to do this on the Partition tab--select Mac OS X Extended (Journaled) for the format and "Apple Partition Map" for the partition map scheme. You can also give your flash drive a name. Once you have it set up, you can mount it on your desktop and copy your documents etc. by dragging and dropping.
Good luck, and happy computing! -
(10.6.8 Intel core duo 2009)
Hi,
I have a grey screen and grey rotating wheel startup probs. I have tried repairing with the disk utility, resetting PRAM, booting in safe mode (which gave a subset of the errors that 'disk repair' did- namely- 'invalid sibling link,invalid record count, invalid node structure, invalid key length) and finally trying to get to archive&install the o/s, but it cannot find the destination volume. Is an erase the only option? PS I have backed up most files individually, but my daughter did not back up any from her user account. Any help would be appreciated. JGray, Blue or White screen at boot, w/spinner/progress bar
Why is my computer slow?
..Step by Step to fix your Mac
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents -
Here's what I've tried;
SMC reset
Pram reset
Looked at activity monitor - mostly seems OK aside from a kernel task taking up memory (approx 460MB) but CPU is around 96% idle.
Fan seems to be running constantly - heats up noticeably when I close the MBP
Despite a re-install of Mavericks, MBP is running frustratingly slow. Just typing is enough to bring on the beach ball.
Have backed up everything, reinstalled from a clone, checked through Apple Hardware test and carried out a Verify Disk Permission - nothing was reported, erased the drive and set up again - problem still stands.
Memory is running at 3.43 GB without anything really running bar Safari.
A little loath to install SMC fan control without knowing what's wrong.
Checked software updates.
Can anyone tell me what the matter is? Does this have a fix?
Have been reading up various posts but to no avail so have resorted to posting myself.
Does this sound familiar to anyone?
Many, many thanks
Roque1. 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.
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. All it does is to collect information about the state of the computer. That information goes nowhere unless you choose to share it. However, you should be cautious about running any kind of program (not just a shell script) at the request of a stranger. If you have doubts, search this site for other discussions in which this procedure has been followed without any report of ill effects. If you can't satisfy yourself that the instructions are safe, don't follow them. Ask for other options.
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.
4. 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.
5. 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.
6. 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 51 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports 'com.autodesk.AutoCad com.evenflow.dropbox com.google.GoogleDrive' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 ` route -n get default|awk '/e:/{print $2}' ` 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^\([0-9]+\) /,"");n=$0;getline;} $NF=="'${p[45]}')" { 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]}'",$0,u,q);} ';};s=(' /^ *$|CSConfigDot/d;s/^ */ /;s/[-0-9A-Fa-f]{22,}/UUID/g;s/(ochat)\.[^.]+(\..+)/\1\2/;/Shared/!s/\/Users\/[^/]+/~/g ' ' s/^ +//;5p;6p;8p;12p;' ' {sub(/^ +/,"")};NR==6;NR==13&&$2<'${p[10]} ' 1s/://;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: [^EO]|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[11]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ s/ *:$//;x;s/\n//;/Apple|Genesy|Intel|SMSC/d;s/\n.*//;/\)/p;};/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;} ' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/:/;END { if(NR<100)print "com.apple.";} ' ' $3~/[0-9]:[0-9]{2}$/ { $4="";gsub(" "," ");gsub(/:[0-9:a-f]{14}/,"");} { print|"tail -n'${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'"`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}//;s/ .+//p ' ' /Launch[AD].+\.plist$/;END{if(NR<100)print "/System/";} ' '/\.xpc\/(Contents\/)?Info\.plist$/p' ' NR>1&&!/0x|\.[0-9]+$|com\.apple\.launchctl\.(Aqua|Background|System)$/ { print $3;} ' '/\.(framew|lproj)/d;/plist:|:.+(M.+exec|scrip)/s/:[^:]+//p' '/root/p' ' !/\/Contents\/.+\/Contents|Applic|Autom|Frameworks/&&/Lib.+\/Info.plist$/;END{if(NR<100)print "/System/"};' '/^\/usr\/lib\/.+dylib$/p' '/\/etc\/(auto_m|hosts[^.]|peri)/s/^\.\/[^/]+//p' ' /\/(Contents\/.+\/Contents|Frameworks)\//d;p;' 's/\/(Contents\/)?Info.plist$//;p' ' { gsub("^| ","||kMDItem'${p[35]}'=");sub("^.."," ") };1 ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[9]}'{$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|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/ )||(/v6:/&&$2!~/A/ ) ' ' /lR/ { if($2<='${p[25]}')print $2;} ' ' BEGIN { FS=":";} $3~/(sh|ng|ic)$/ { n=split($3,a,".");sub(/_2.+/,"",a[n-1]);b=b"\n"$2" "a[n-1]" "a[n]" "$1;c=c$1;} END { d="sort|tail -n'${p[38]}'";print b|d;close(d);if(c)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 "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n [N/A]";"file -b "F|getline T;if(T!~/^(A.+ E.+ text$|POSIX sh.+ text ex)/) F=F" ("T")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n ...and %s more line(s)\n",l-L);} ' ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ +B/{ s/.+= |(-[0-9]+)?\.s.+//g;p;} ' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' /:/{$0="'"${p[28]}"'"};1;' '/ en/!s/\.//p' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps sudo\ crontab sudo\ iotop top pkgutil PlistBuddy whoami cksum kextstat launchctl sudo\ launchctl crontab 'sudo defaults read' stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' defaults\ read scutil sudo\ dtrace sudo\ profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil );c2=(com.apple.loginwindow\ LoginHook '-c Print /L*/P*/loginw*' '-c Print L*/P*/*loginit*' '-c Print L*/Saf*/*/E*.plist' '~ $TMPDIR.. \( -flags +sappnd,schg,uappnd,uchg -o ! 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B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D22 0 $((N1+4)) 5 4;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;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 14 12 14;D22 6 36 13 15;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D22 11 17 17 20;for i in 0 1;do D22 28 $((N2+i)) 45 $((N4+i));done;};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&&{ A2 19 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;A2 4 20 21;B7 6;B2 9;A4 14 7 52 9;B2 10;B6 9 10 4;C3 25;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;D23 24 24 32 31;D13 25 37 32 33;A1 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D13 21 0 32 19;D13 10 42 32 40;D22 29 35 46 39;};D23 14 1 48 42;D12 34 43 53 44;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 26 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;D22 32 31 43 38;D23 20 42 32 41;D23 14 2 48 43;D13 4 5 32 1;D22 4 4 50 0;D13 14 3 49 5;D23 22 9 37 7;A7;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
7. 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.
8. If you see an error message in the Terminal window such as "syntax error," enter
exec bash
and press return. Then paste the script again.
9. 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.
10. 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 the results. No harm will be done.
11. 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 "Model Identifier." 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.
12. When you post the results, you might see the message, "You have included content in your post that is not permitted." It means that the forum software has misidentified something in the post as a violation of the rules. If that happens, please post the test results on Pastebin, then post a link here to the page you created.
Note: 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. -
I've been having two issues with my Late 2008 MacBook Pro 15-inch - Running OS X 10.8.5 (Mountain Lion). Unable to Reset the PRAM and Run Apple Hardware Test (AHT).
On a random basis - File/Folder icons are Sticking to the Mouse Pointer - Not Releasing. I've done everything from trashing finder preferences, making sure Universal Access preferences are off, Restoring Defaults in the Energy Saver System Preferences, Resetting the System SMC. Another post mentioned that this is being caused by the Graphics Driver not working correctly - and mentioned to put the MBP to sleep, then wake it up, and the files/folders are no longer sticking to the mouse pointer. This works for me and released the sticking items in the Finder.
OK, Good this is a simple fix, BUT, what is really causing this issue, and how may it be fixed or repaired?
I also tried to Reset the PRAM and Run the Apple Hardware test (AHT), and these both fail to run on my MacBook Pro with OS X 10.8.5.
1) Resetting the PRAM:
Shut down the MBP, press the power button, and hold down at the same time <option><command>-P-R. The Reset PRAM process never starts up, but rather I receive the Padlock/Password Login which logs me into the Restore System Utilities. I'm unable to Reset the PRAM.
2) Apple Hardware Test (AHT):
Shut down the MBP, press the power button, and hold down the "D" key, the system boots up as normal and does not enter the AHT.
The File/Folder Finder sticking to the mouse pointer issue is very annoying. Does anyone have a solution to resolve this issue?
- CheersHI Barbara,
It sounds like the hard drive is failing or has failed. Boot from your Mac install disc and if you can run Disk Utility in case the startup disk needs repairs.
Insert your install disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
*(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)*
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
While you have the Disk Utility window open, look at the bottom of the window. Where you see Capacity and Available. *Make sure there is always 10% to 15% free disk space*
If you cannot boot from your install disc, try booting in Safe Mode
What is Safe Mode
Carolyn -
We have had several (7-10 recently) macbook Pros start this issue. The screen will jump from regular to blue, the background image will go away and it will be replaced with a blue screen, the icons change size and the screen resolution changes. Someimtes the users name field on the login screen will fly in from off screen... run diagnostics (AppleJack, Disk Util) and reset PRAM and SMC and sometimes this helps but wanted to know if there was a definite reason for this or a better resolution to the problem?
Thanks all
Macbook Pros are all newer (some only a month old) Unibody models running Snow Leopard and LionAppleJack has been discontinued, so you should uninstall that.
I'm suspecting something in software across all machine or a security breach as the primary cause of your problems.
Wipe and install everything fresh, firmware update the router, change passwords, new software form original sources, etc.
This might assist.
Step by Step to fix your Mac
WiFi security issues, at home and WiFi hotspots
Harden your Mac against malware attacks
How do I securely delete data from the machine? -
Recently upgrade to OS x 10.7.5 resulted in loss of what appears to be internal communication of line in audio, and output. Have tired several remedies including resetting PRAM, SMS, updating all software, multiple Sound and Audio Midi applications adjustments to no avail. Also no audio is recognized on USB mixing board I tried as well, though Audio USB Codec was displayed. THe master volume sliders and other options are greyed out on Audio Midi application whn I try to troubleshoot that. Nothing external will play through computer speakers, but internal sounds and iTunes play normally.I made sure the audio sampling rates were default. Software issue or soundcard/hardware failure.?..Pullin my hair out!
Might be corrupted sound preferences ...
Open the Finder. From the Finder menu bar click Go > Go to Folder
Type or copy paste the following;
/Library/Preferences/Audio
Click Go then move both .plist files from the Audio folder to the Trash.
com.apple.audioDeviceSettings.pllist
com.apple.audio.SystemSettings.plist
Restart your Mac. See if that made a difference ... -
Reset PRAM, now boot resolution is wrong?
I was having a weird graphics issue and one step I took in troubleshooting, as told to do by Apple over the phone, was reset the PRAM. Now every time I boot the Mac Pro, the white and grey apple screen is stretched and looks to be around 800x600 while my monitor resolution is 1920x1200. Once it reaches the login screen, everything looks fine again, it's just the main boot screen with the apple log and little spinner icon. I know it was resetting the PRAM that caused this but how I can get my resolution back to normal? The resolution looked fine before resetting PRAM. Thanks.
AdiosVista wrote:
I was having a weird graphics issue and one step I took in troubleshooting, as told to do by Apple over the phone, was reset the PRAM. Now every time I boot the Mac Pro, the white and grey apple screen is stretched and looks to be around 800x600 while my monitor resolution is 1920x1200. Once it reaches the login screen, everything looks fine again, it's just the main boot screen with the apple log and little spinner icon. I know it was resetting the PRAM that caused this but how I can get my resolution back to normal? The resolution looked fine before resetting PRAM. Thanks.
Just a wild shot but reset PRAM again and then reset nv-ram. -
My computer beeps when I turn it on . I have tried to reset pram but can't get past the beeps.
My computer beeps when I turn it on . I have tried to reset pram but can't get past the beeps.
The beeps (or flashes) are usually an indication that there is no working RAM. This article gives some examples, but the concept applies widely across many Mac models.
iMac (Mid 2007) and later models: About startup tones -
Can I reset PRAM or NVRAM in a MacPro?
Hi all,
I'm on my second MacPro - Apple changed out the last one because of fan & bluetooth issues - and since the latest 10.4.8 update my fan is a bit louder than before so I thought I'd try the above as it worked on G5 machines. I know this has EFI or something wich is different to the G5s so any ideas?
Also, where is the SMU reset button; is it the one in the RAM bay above the higher board or is there another?
I'd like to add, this machine is giving a constant Airport connection of 3mb - 4mb + [on a 4.5mb link] whereas my previous one was lucky to give me 500k so it looks like the wires are being connected properly now?
Thanks in advance to all :0)
BYes you can reset PRAM and NVRAM…
http://docs.info.apple.com/article.html?artnum=2238
… in a Mac Pro just like any other Mac.
As for the SMC reset button. Apparently it's placed…
"Press the SMC_RST switch that is located slightly below and to the right of the row of diagnostic LEDs. Use a non-metallic, non-conductive object, such as a wooden pencil." -
Reset PRAM/SRAM, now won't open
Aloha all, had a bad ram issue and got that fixed easily, but had to reset PRAM on a G5 (early 2005), After rebooting FC won't open at all. Followed other advice on these boards like trashing prefs etc, using FCR, but nada. Still won't open. Any other advise or suggestions would be greatly appreciated. Running FCP 5, with 10.4, 2g ram Mahalo in advance for any/all tips suggestions. JB
Hi Micheal,
Open Keychain Access in Utilities, use Keychain First Aid under the Window Menu item, does that help any?
Might see if this Home Folder PW forgotten helps...
http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh1909.html -
MacBook will not start. I have restarted with original CD. I have used Utilities and "no problem" with hard drive. I have reset PRAM. I have tried safe boot. Nothing is work. Gray screen with Apple logo and rotating wheel. Thanks for any suggestions!
Snow Leopard is a Mac OS X version. You say that it's the version you have in your Mac (10.6.8). Do a back up of your files, format the hard drive (using Disk Utility) and reinstall again
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