Tracking Forums, Newsgroups, Maling Lists
Home Scripts Tutorials Tracker Forums
  Advanced Search
  HOME    TRACKER    mac


MacBook :: Tried To Reset The NVRAM And The PRAM But Cannot?

I have already covered these steps:1. I have tried a safe boot. 2. I have tried to reset the NVRAM and the PRAM.3. I have tried to reinstall OSX from the Install Disk.4. I have tried to repair the HD and tried to repair permissions using the Disk Utility. he issue started out as the flashing Apple/Question Mark Folder/"No" sign. I attempted to follow the steps on the Mac Support Forums (ones listed above) and the issue developed into the picture shown.

View 3 Replies (Posted: Aug 9, 2009)

Sponsored Links:

Related Forum Messages for Mac:
IMac Intel :: Reset Pram & Nvram Now System Slow
I decided to reset my pram because the disk startup preference pane wont recognise my windows drive but i could boot into windows from my firmware. I read on the internet that resetting the pram might fix it. After i reset my pram my computer took a long time to boot. then it came up with a folder with a " ? " in it. so i booted from my os 10.6 install disk and ran the disk utility thinking my harddrive might be faulty. it didn't find any errors. When it booted it also made the bong sound but at max volume. I left it for a while and it eventually booted into osx but every time i typed in a letter it would lockup with a beach ball for 5 mins. ounce i logged in and my computer was running for a while it started to run close the normal speed. I was wondering if there was a way to restore/reinstall the firmware? could someone please explain to me in layman's terms what resetting the pram & nvram actually does? i hope im not missing any details. Im looking forward to getting finding a solution.

iMac 2ghz intel
Mac OS X (10.5.6)

Posted: May 13, 2010

View 5 Replies!   View Related
MacBook Air :: Resetting PRAM And NVRAM?
Is it ok to have a PRAM and NVRAM reset two times a week?

MacBook Air, Mac OS X (10.7.4)

Posted: Jun 5, 2012

View 7 Replies!   View Related
MacBook Pro :: Resetting PRAM And NVRAM Revert System To 9400m?
I just noticed this and was wondering if it was a common occurrence. If I have my MBP set to use the 9600m GT and I decide to reset the PRAM/NVRAM, will the computer automatically revert to the 9400m after such reset. I just noticed that my graphics settings changed by itself and could only draw up the PRAM/NVRAM reset as the cause. Is this the case?

15.4 inch Macbook Pro (Mid-2009) & 13 inch Macbook Pro (Mid-2009_
Mac OS X (10.6.1)
2.66Ghz, 4gb RAM, 320Gb HDD@5.4k & 2.26Ghz, 2gb, 160Gb HDD @5.4k

Posted: Oct 12, 2009

View 4 Replies!   View Related
Mac Pro :: Firewire Ports Stopped Working / Resetting PRAM And NVRAM
I have a 2006 Mac Pro and recently my firewire ports stopped working (front and back). I did a little searching around found a suggestion to try resetting the Mac's PRAM and NVRAM by holding the Cmd-Option-P-R keys down while booting. I have tried this numerous times and it doesn't seem to do anything (i.e. the Mac just loads OS X and doesn't re-boot like the instructions say). I'm using a MS Wireless Comfort Keyboard for Mac. Can you reset using a wireless keyboard?

Since I wasn't making any progress with that, I was toying with bringing in the Mac to a genius bar. Never having used the genius bar before - how does it work? Do I bring the computer in and leave it with them? Do they work on it while I'm there? I don't have an extended warranty so do they charge time and materials? I'm wondering if that might get awfully expensive and if I ought to just buy a PCI-X firewire card instead.

Any suggestions?

Posted: Sep 3, 2010

View 1 Replies!   View Related
Power Mac G5 :: G5 Dead - Zpping PRAM - Resetting NVRAM And PMU Don't Work
I own a Power Mac G5 (the first model on this page: ). It's been running pretty smoothly up with the occasional hang ups, but nothing I wasn't able to take care of myself). Today, after two or three attempts to work on it, the whole system froze and I was forced to shut it down manually. Since then, I haven't been able to get into the OS. Here's what happens:

-The opening chime and fan work as usual, the first couple of times, the computer would sound as if loading, but it would not show anything but a black screen and I am forced to shut down manually, again.
-After resetting PRAM, every time I open it up, it reaches the grey screen with the Apple logo, but after a few seconds of the spinning gear, everything freezes and again, force shut down.
-Looked around all the forums, tried zapping again, tried resetting NVRAM, resetting PMU, did a fsck -fy check up tried to start in Safe mode (nada), tried to boot from disc, can't even reach it. Tried using the option key while loading to get the choices, still nothing.
-I've tried leaving it alone for extended periods of time, nothing...

I'm out of ideas and have a very bad feeling about what this all means... What could the problem be? I haven't installed anything new on the computer which I mostly use for ripping my LPs and to record some of my own music using Ableton Live.

I forgot to mention that even though the screen freezes, the computer seems to still sound as if it's working or booting, but nothing else happens and every time I'm forced to quit manually.

Posted: Jul 9, 2010

View 14 Replies!   View Related
OS X :: Graphics Hiccup At Startup - Need To Reset NVRAM
Unless I reset the NVRAM, there is a screen hiccup at startup. Right after the Apple logo, but right before the blue screen, there is a graphics glitch where there are a bunch of gray lines/marks for a second, then it starts up normally. It goes away after resetting the NVRAM. I did a clean install of OS X Snow Leopard to see if it would go away, but it's still there. I don't want to reset the NVRAM again because I don't like how the computer starts up at a bright setting.

Posted: Aug 27, 2010

View 2 Replies!   View Related
Power Mac G5 :: How To Reset NVRAM Screen Manually
How do I get to the white cursor screen to reset the nvram on a G4 powermac. I've done it before and have the inputs written down but don't know how to get to the screen.

PowerBook G4 15" 1.25 Ghz/ G5 iMac (Intel)
Mac OS X (10.5)
2 ghz Ram, 100g HD, Airport Extreme, CD/DVD-RW/ 2 ghz Ram, Dvd-burner

Posted: Feb 13, 2008

View 5 Replies!   View Related
MacBook Pro :: When Do A PRAM Reset They Prompt For Password
when i do a PRAM reset, they will prompt me for a password or serial, may i know what password or serial is that?

MacBook Pro, Mac OS X (10.7.3)

Posted: Mar 12, 2012

View 3 Replies!   View Related
MacBook Pro :: It Won't Boot After PRam Reset
I have a MBP 13inch from 2011

recently i zapped my Pram becuase i was having trouble with a external screen but when I turned it on again the screen when to the grey screen with the apple logo and spinning gear but after 2 hours of wating the screen is still the same. What can i do to get back onto my mac?

Info:MacBookPro, Mac OS X (10.6.8)

Posted: Mar 6, 2012

View 2 Replies!   View Related
MacBook Pro :: How To Reset PRAM/Start Up Sound Loud/Implications?
I recently purchased a 13" 2.26 stock macbook. It's perfect, screen is good (no scrolling issues or purple blues) with no dead pixels, no slanted keys, and no scratches.

I updated the firmware that addresses the SATA 1.5 issue. After the update, I reset PRAM. I held down the buttons till I heard the second or third startup bong.

Here is where it gets funny.

Now, when I reboot or start up my computer, the start up noise is loud. Even with headphones plugged in and also the volume turned to its lowest setting (even with volume turned off). Eventually, to control the startup noise, I had to install the startupsound program in my system prefs as mentioned on other threads and that has seemed to control the startup sound.

I was wondering, if by resetting the PRAM if I have harmed my computer in any way. Should I be worried about deeper issues with my computer since the startup sound was not previously being affected by reducing the volume to zero with headphones plugged in?

Posted: Jul 9, 2009

View 10 Replies!   View Related
MacBook Pro :: Reset SMC And PRAM - Still No Ability To Auto Sleep
Today I noticed that my mid 2010 MBP is not automatically sleeping. I ran Apple's extended hardware test, along with TechTools Pro 5 from AppleCare disk. Both passed. Reset the SMC and PRAM. I'm still not able to auto sleep. Is there a way to see what exactly is causing my computer to not automatically sleep? Console messages or something?

Posted: Aug 22, 2010

View 7 Replies!   View Related
MacBook Pro :: Firmware Password Will Not Reset - Resetting PRAM Fails
Firmware password will not reset. Resetting PRAM fails. Resetting NVRAM in Open Firmware fails. Resetting PMU fails.

MacBook Pro, Mac OS X (10.7.3), (MacBook pro 8,1)

Posted: Apr 29, 2012

View 4 Replies!   View Related
MacBook :: Shuts Down When Unplug Magsafe - Reset PRAM / SMC To No Avail
I have tried SMC and PRAM resets, and the issue has not been resolved. My magsafe is lit up with a bright green led. Battery status is "Not Charging." When I unplug the magsafe, the system immediately shuts down. Battery is brand new with only 2 cycles. While I can use the laptop with power connected, this is an issue that needs to be corrected asap, as I use this computer for performances consistently and if the power cord gets removed, I'm not in a good place.

MacBook, Mac OS X (10.6.8)

Posted: May 18, 2012

View 5 Replies!   View Related
MacBook Pro :: Unable To Boot Past Gray Screen - Reset Pram
My macbook pro won't boot past the grey screen, I've tried reseting PRam, running fsck from single user etc to no avail. All signs would point towards a hard disk failure, but the curious thing is that it sometimes mounts in disk utility when booting from the install CD, so theres a little life left in it yet! I have fairly recent backups of most of my files, but there are a couple I've been working on in the past few days that won't be backed up. So my question is this - is it possible to copy files from my mac HD onto a external drive through the terminal/disk utility while booting from the CD.

Posted: Jan 8, 2011

View 6 Replies!   View Related
OS X Leopard :: Reset Pram - Goes To Sleep Randomly?
Having some problems with my iMac G5. It keeps going to sleep randomly and then sometimes I have to leave it over 10 minutes before it will wake again. It happens doing all sorts of things from watching videos online to using iPhoto. I've tried resetting the PRAM as the screen is slightly dim compared to how it used to be. Also when it comes from sleep it goes really bright like how the screen used to be then back down to a dimer screen, and my brightness is on full. So its showing it my for a split second how bright this screen can go but then goes dim. Anyway when I try to reset the PRAM I get the first chime and then it shuts its self down completely like it can't handle what I'm trying to get it to do. So I need some other way to reset the PRAM

iMac G5, 2GB RAM
Mac OS X (10.5.6)

Posted: Mar 7, 2009

View 2 Replies!   View Related
Snow Leopard :: PRAM Reset Not Working
I'm trying to reset my PRAM in an attempt to resolve screen flicker issues and freezing issues with my macbook pro late 2008 9400 and 9600 GPU.When pressing the command+alt(option)+P+R after the first startup chime sound, I'm not getting the supposed second or third chime sound. The system just boots as normal.Does anyone know how I can reset the PRAM ? Thanks a lot.

macbook pro late 2008
Mac OS X (10.6.5)

Posted: Dec 30, 2010

View 5 Replies!   View Related
OS X :: Reset PRAM For Network - Troubleshooting Steps?
Can someone explain to me why resetting PRAM on a machine has any effect whatsoever for networking issues? ie; self assigned ip etc. I have noticed this is a common troubleshooting step that a lot of people are recommending for issues related to networking.

Posted: Aug 15, 2010

View 3 Replies!   View Related
Hardware :: No Sound And Can't Reset My PRAM?
I have a 17" Powerbook G4 1.5 GHZ. I lost all sound from one moment to the next. System preferences says Audio output Headphones however no sound from Headphones either. I tried to reset my PRAM, however when I hold down "Option" "Command" "r" and "P" the computer won't restart. The hard drive seems to be stuck at this point and won't go any further. I went to the Apple store and the Genius lost patience and said we should send it out. (I'd rather not)

I have also reset the PMU

Everything else works fine.

I've looked at several other threads and post. Everyone with a sound problem seems to be able to get it resolved with a PRAM reset. However I find nothing on my the problem of not being able to reset..

Posted: Jan 20, 2009

View 4 Replies!   View Related
OS X V10.7 Lion :: How To Reset PRAM And SMC
I am running Mac OS Lion (10.7.3) on a 8-core Mac Pro. As I turned on my mac this morning, I found out that I was unable to use my wireless mouse, and also that I couldn't open my bluetooth settings. Apparently, the entire module disappeared from the System Preferences, and when I went to one of the articles on here, I saw that I'm supposed to reset my PRAM and SMC in order to make my bluetooth work again. The problem is, that I don't know what PRAM or SMC are, nor do I know how to reset them.

Mac Pro (Mid 2010), Mac OS X (10.7.3)

Posted: Mar 21, 2012

View 3 Replies!   View Related
OS X Leopard :: Apple Computer - Reset Pram Simply
I am not experienced with apple computers so use simple language. How in this world do you reset pram?

Posted: Aug 23, 2009

View 5 Replies!   View Related
IMac Intel :: Won't Allow Pram Reset
First of all, I've been a Mac owner for 20 years and I know the mechanics of zapping the pram. option, command p,r I have an Intel iMac 1.83 ghz w/ 2 gig ram running 10.6.2 that will not hook to my Filemaker server. I've repaired the permissions, ran Onyx, done everything that I know to do except for pram reset. I've tried a dozen times and spoken with AppleCare and STILL can't get this thing to zap the pram. I'm aware that this probably not the fix that I'm looking for, but I'm trying to be thorough. About either the filemaker host or forcing this thing to reset the pram.

8 iMacs and 3 Macbooks and many iPods,iPhone, 1T Time Capsule, Apple TV
Mac OS X (10.6.2)
As much ram as possible

Posted: Dec 15, 2009

View 5 Replies!   View Related
IMac Intel :: PRAM Reset - Immediate Power Up - Normal?
I replaced my PRAM battery and after doing so when I pluged in the power cord the iMac immediately powered up. No need to press the power button. This was a 1 time thing, after shut-down it all seems normal. I re did the battery removal/replacement and again the system immediately starts when power cord plugged in. Seems abnormal to me but perhaps it isn't?

iMac Intel 8.1 and 4.1
Mac OS X (10.6.2)
1TB WD drive

Posted: May 10, 2010

View 4 Replies!   View Related
IMac Intel :: Can't Reset PRAM - No Beep
I have a 24" iMac 2.8 Ghz. The superdrive has been acting up recently and I was advised to reset the PRAM. Upon attemting to do this I found that the iMac constantly reboots as I hold down the appropriate key combination. There is no beeping - no nothing. Then I attempted to reset the NVRAM and found it just boots straight into OSX. I do not use a blutooth keyboard or mouse - so that is not the problem. The keyboard is the same that came with my iMac. I'm worried that I now face a more serious problem than just the superdrive acting up.

24" Intel iMac Dual Core 2.8 Ghz
Mac OS X (10.6.4)

Posted: Jan 14, 2011

View 5 Replies!   View Related
Power Mac G5 :: Blank CDs Not Mounting -trying To Reset PRAM
I have tried two different brands of blank CDR in my drive and both times, they fail to mount and in Disk Utility, show up as Sony DVDs (neither of them is a Sony or a DVD), but not writable. I have no problem with media that already has content. I've tried resetting PRAM, but nothing else yet.

Powermac G5
Mac OS X (10.4.10)

Posted: Nov 30, 2007

View 2 Replies!   View Related
Power Mac G5 :: Won't Boot Unless Pram Reset
A few days ago my G5 started to freeze up and upon restart, I would get the Apple logo for a few seconds and then that logo would become the circle-with-the-the-line-through-it symbol. I shut down using the power button and restart, resetting the PRAM. The computer will run fine after that, until I shut down. When I restart the computer, the same thing happens again. I have reset the SMU, verified and repaired disks, re-seated RAM, run TechTools(which gave a green light to everything). I've seen some similar posts, but not identical, especially since resetting the PRAM SEEMS to solve the problem, at least temporarily.

G5 Dual 2.7
Mac OS X (10.4.11)

Posted: Mar 26, 2008

View 3 Replies!   View Related
Snow Leopard :: Dashboard Widget Frozen - PRAM Reset?
My dashboard widgets are frozen, and someone suggested a PRAM reset. How is this done? I did an SMC reset. Any other ideas if PRAM reset doesn't work?

Mac OS X (10.6.4)

Posted: Jun 20, 2010

View 7 Replies!   View Related
OS X :: Properly Reset PRAM - Start Up Sound Before Releasing Button
I understand the steps needed, but how many times should I reset the PRAM and how many times should I here the startup sound (in total) before releasing the buttons?

Posted: Jul 19, 2009

View 3 Replies!   View Related
OS X :: Attempted To Reset The PRAM On Macpro Running Snow Leopard?
I attempted to reset the PRAM on my macpro running snow leopard this morning, by rebooting and holding cmd-option-p-r until the apple logo appeared, at which point I released and then machine then rebooted a second time. I went back to the computer about an hour later and it was stuck on the apple logo screen, with no sounds coming from the CPU. I did a hard reboot by holding down the power key and it started up fine. I've never reset the pram before and so I didn't know what I should expect as far as the process being successful, but after an hour stuck on the apple logo I figured it got stuck on something.

Posted: Sep 11, 2009

View 1 Replies!   View Related
OS X V10.7 Lion :: Reset The SMC, PRAM Or Repair Permissions?
When exactly do you need to reset the SMC, PRAM or repair permissions? 

iMac, Mac OS X (10.7.3), iMac Late 2009

Posted: Jun 29, 2012

View 3 Replies!   View Related
Power Mac G5 :: Can't Reset Pram By Doing Apple Option P - R Method
I can't seem to reset my pram by doing the apple-option-p-r method when starting up the computer. I know you are meant to hear 2 chimes but mine just starts up as normal. Is there another method for reseting the PRAM?

Powermac G5
Mac OS X (10.4.11)

Posted: Mar 10, 2008

View 12 Replies!   View Related
Mac Pro :: SMC And PRAM Reset - Keyboard And Mouse Delay?
I tried the SMC & PRAM reset. Now, there is a delay in my keyboard and mouse. For example as I am writing this, as I type, I am observing a ~1/4 sec delay between me pressing a key and the GUI registering it. The same with the mouse. I can click-and-hold over say File and move it up and down over subsequent menu items and it the GUI doesn't highlight the menu item unless I slow down the movement.

Posted: Feb 25, 2008

View 1 Replies!   View Related
Software :: Can't Reset Pram - Going Straight To Gray Screen And Starts Up?
I have a G4 MDD Dual 1.42ghz, When I hold down the Command-Option-P-R keys during restart it doesnt do anything. It keeps going straight to the gray screen and starts up. I dont know what to do. Anyone know whats the problem? Also my computer cant wake up from sleep or even go to sleep all the way.

Posted: Feb 25, 2006

View 7 Replies!   View Related
OS X V10.6 Snow Leopard :: Mac Chimes As If PRAM Is Being Reset When Restart
When I restart my Mac it chimes several times as if the PRAM is being reset. Could this be telling me my internal battery is dead?

Mac Pro, Mac OS X (10.6.8), 8 core 9gb RAM

Posted: Apr 9, 2012

View 1 Replies!   View Related
IMac Intel :: Prohibitory Sign At Boot - Can't Reset PRAM Or Eject CD
I have one of the first all white Intel iMacs and just a few minutes ago I tried to restart my computer. It looked like it was booting fine but about 45 seconds in, the apple turned to the prohibitory sign, with the spinning clock spine underneath still going. I tried all the usual, but I cannot get my computer to do anything -- I have a dvd in the drive I cannot even eject it using the mouse. I cannot boot into safe-mode, cannot hold option to choose another drive, cannot force boot into the OS by holding down x, cannot even boot it into target disk mode. Cannot command-s for love or money. Cannot zap the PRAM. It's almost as though it ignores every input from the keyboard and mouse (which do have power because I can see the optical mouse lit when it is plugged into the keyboard and I've even tried different USB ports just to be sure.) The only thing it seems to care about is the power button. I'm kinda broke at the moment and cannot afford to take it in for repair

iMac Core Duo
Mac OS X (10.6.2)

Posted: Mar 14, 2010

View 1 Replies!   View Related
IMac Intel :: PRAM Reset - No Way To Start Up Computer - Shows Loading Bar
I reset the PRAM on my iMac (Holding cmd, option, P, R starting up) because of some problems I was having and now whenever I start up the computer it keeps showing a loading bar under the apple logo and takes about 4 mins to load that bar, then when it's finish it will go onto starting up the computer.

iMac 21.5inch 3.06ghz
Mac OS X (10.6.3)

Posted: Apr 30, 2010

View 3 Replies!   View Related
Intel Mac :: Startup Tone Lost - SMC And PRAM Reset Done But No Avail
I lost the startup tone a couple days ago. I repaired permissions, did an SMC and PRAM reset and it makes the tone while doing the PRAM reset but the next time you turn it on it doesn't make a sound.

iMac, Mac OS X (10.6.8), 3.2 GB Dual Core

Posted: Jun 26, 2012

View 1 Replies!   View Related
IMac :: LCD Backlight Bleed / Reset The PRAM Which Figured Wouldn't Work?
So I contacted Apple this morning regarding the LCD Backlight Bleed on my iMac (24", early 2008, 2.8 ghz) They made me reset the PRAM, which I figured wouldn't work, and the issue is still there.

They say it'll have to go in for servicing, and I live nowhere near an Apple Store, so they gave me the location of the nearest London Drugs. Am I going to get the same quality of service as I would from an Apple Store? And what is the exact process that they use, do they just replace it with a new LCD?Also, he said that it will be covered under Applecare unless it is ruled as accidental damage, he said that much of the time, the issue is caused by pressure on the back of the case, and that if that was the case, it wouldn't be covered.I can't really see how this would cause it, and I haven't ever put any pressure or anything on the back, but i did buy the iMac used, what are the chances of this being ruled accidental damage?I have the bleed in all four corners of the screen, if that makes any difference.

Posted: Sep 13, 2009

View 2 Replies!   View Related
OS X Leopard :: Frozen Blue Screen Login Screen - Reset Pram And Smu
I returned to an open screen digitized and frozen, when I rebooted I got through the grey Apple screen to blue where it appeared to freeze. I reset pram and smu, I can enter in safe mode and also with the original installer disc- where everything seems to be fine. While there I have verified s.m.a.r.t. status, repaired permissions, hard drive and logic board are all reporting fine, but reboot leaves me at the blue screen. I have reinstalled Leopard with an erase and install (where the welcome music plays behind the blue screen). I have gone through the forum and seen things like this but their solutions haven't worked for me-

imac g5 160gb
Mac OS X (10.5.8)

Posted: Oct 18, 2010

View 6 Replies!   View Related
MacBook Aluminum :: Tried Everything, Resetting NVRAM, Fixing Disk Permissions Before Applying The Update?
When the 10.5.7 update came, my Aluminum 2.0Ghz MacBook didnt take the update well: [URL]. That problem occured, also I'm missing (taskbar battery) the option to change between energy saving and blah blah. Now, after coping with all of the problems that I experienced, I decided to erase my HDD and reinstall whole Leopard.I was cheery and hoping that the problem would go away. No. No. No. The problem still persists and now im stumped. I have no idea what could be causing this.I've tried everything, resetting PRAM & NVRAM, reinstalling Leopard, fixing disk permissions before applying the update, downloading the combo update. None of these has worked..

Late 2008 MacBook Unibody.
Mac OS X (10.5.7)

Posted: Jul 6, 2009

View 1 Replies!   View Related
Copyright 2005-08, All rights reserved