Macbook start up problem

Hi,
yesterday I was serving the net using Safari and everything works fine,after that I put my Macbook to sleep as usual (I usually don't shut down)
few hours later I when I try to wake it up and the screen just went black, no screen light, totally black, the LED light is on but doesnt blink as usual (it keeps on)
the machine vibrate but no response.
I forced shut down, restart and everything remains the same.
I also tried Command + Control + R + P and nothing happen.
anyone experience similar problem?
what can I do?
thanks.

your model supports up to 4GB of RAM (2X2GB) so you're highest option would be to buy a single 2.0GB chip and install it in the functional slot.
I am an Apple Authorized Technician and have seen this numerous times in the past, so you are definitely not an isolated incident.
Here is a link to a very popular store to buy apple-compatible parts:
http://eshop.macsales.com/shop/memory/MacBook/DDR2/
for $35 and about 5 minutes of your time it is probably the best thing you can do for your computer. Sure you won't have dual channel memory speed, but when you compare $35 for a RAM chip vs. $1000+ for a new macbook, it's pretty easy to decide. Throw the 2GB in, use it for another 2 years and then decide if it's time to replace the computer.

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Macbook start up problems

My MacBook popped up with a restart screen the day and after restarting it I was able to use it once and than it would no longer turn on but would do an SOS type beep or a folder with a blinking ? in it. I was able to force start the Mac OS X startup and that work. I ran the Disc Utility to find out what happened and it came back with this information: Verify permissions for “Macintosh HD”
Reading permissions database.
Reading the permissions database can take several minutes.
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/PlugIns/DVD.frappliance/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/PlugIns/FRSettings.frappliance/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/PlugIns/FRSources.frappliance/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/PlugIns/Movies.frappliance/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/PlugIns/Music.frappliance/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/PlugIns/Photos.frappliance/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/PlugIns/Podcasts.frappliance/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/PlugIns/TV.frappliance/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "System/Library/PrivateFrameworks/BackRow.framework/Versions/A/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
Permissions differ on "Applications/iTunes.app/Contents/CodeResources", should be -rw-rw-r-- , they are lrw-rw-r-- .
Permissions differ on "Applications/iTunes.app/Contents/Resources/iTunesHelper.app/Contents/CodeResou rces", should be -rw-rw-r-- , they are lrw-rw-r-- .
Warning: SUID file "System/Library/PrivateFrameworks/DiskManagement.framework/Versions/A/Resources /DiskManagementTool" has been modified and will not be repaired.
Warning: SUID file "System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/Reso urces/Locum" has been modified and will not be repaired.
Warning: SUID file "usr/sbin/pppd" has been modified and will not be repaired.
Warning: SUID file "usr/sbin/vpnd" has been modified and will not be repaired.
ACL found but not expected on "Applications/Utilities".
I was wondering if anyone could tell me what this means, so that I can take the appropriate action to assuring that my mac book works properly?

Megatronwill wrote:
My MacBook popped up with a restart screen the day and after restarting it I was able to use it once and than it would no longer turn on but would do an SOS type beep or a folder with a blinking ? in it. I was able to force start the Mac OS X startup and that work. I ran the Disc Utility to find out what happened and it came back with this information: Verify permissions for “Macintosh HD”
Reading permissions database.
Reading the permissions database can take several minutes.
Permissions differ on "System/Library/CoreServices/Front Row.app/Contents/CodeResources", should be -rw-r--r-- , they are lrw-r--r-- .
(snip)
I was wondering if anyone could tell me what this means, so that I can take the appropriate action to assuring that my mac book works properly?
Welcome to Apple's discussion groups.
You can ignore those messages: http://support.apple.com/kb/TS1448
I'd use Disk Utility to do a "verify disk" operation. If it reports problems, reboot your Mac to a "shift" key held down to boot into "safe mode", which runs a "repair disk" operation, then reboot normally.

Upgraded to 10.8.3 and now having start up problems on MacBook Pro. Help?

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Please elaborate. What do you mean by "start up problems" ? How far does it get?
Chime? Fans? gray screen? Dark Apple? spinner? spinner spins for usual amount of time and screen goes dark? question mark? tones? flashing power light? smoke? what?

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Hello everyone in the Apple ether, I need your help!
I have a powerpc based iMac G5 at home that I set up for my mum to use once I bought my macbook. I finally managed to win her over with talks of how much easier it would be for her to manage her photos in iPhoto, and everything was going really well. I recently came home after my final year at uni and some travelling to find that the computer is taking a long time to start up. This can be in both the grey apple loading screen but also once it logs in it can take a long time to display anything over than the desktop background, and even once it displays other items any attempt to open anything just results in a spinning wheel icon. At the worst case it has taken about 20 minutes to get going.
Once it has fully booted, the machine doesn't appear to be working any slower than normal. I tried using disk utility in mac OSX and verifying permissions etc and that didn't do anything. I then tried googling the problem and came across this article on the apple web site. http://support.apple.com/kb/TS1417
Starting in Safe Mode did not resolve the issue so after backing everything up I tried starting from the installation disc. This is not something I have ever done before and as someone that never really delves beneath the surface of her machines I was a bit scared of doing it. But I put the disc in and restarted and held down C just after I heard the chime, and shortly after it all went wrong. The screen went grey and all I could see was the image you get when it crashes (you know, the power sign with text over it saying you need to restart) with lines of code all down the left of the screen. I took a photo of the screen on my camera so can give details of the code if you need them. The last line said
Kernel version:
Darwin Kernel Version 8.8.3: Wed Oct 18 22:00:38 PDT 2006; root:xnu-792.15.4.obj-4/RELEASE_PPC
panic: We are hanging here...
After a few minutes on this screen the fan started working overtime and after about 5 minutes of that I just turned it off using the power button on the back. The machine has since started up normally (ie slowly) but is working fine.
So I was wondering if anyone had any ideas how to fix the slow start up problem without booting from my install disc, or indeed if anyone could suggest why I can't boot from my install disc? Thanks very much for your time and help.

It appears you experienced a kernel panic which is hardware related. A few suggestions for you to try:
Except for the keyboard & mouse, disconnect all devices from the computer & try the suggestions mentioned in the following:
http://docs.info.apple.com/article.html?artnum=106805 Mac OS X: "Broken folder" icon, prohibitory sign, or *kernel panic* when computer starts
User Tips: Kernel Panics
==============
Boot up from your Tiger or Leopard Install DVD while holding down the "c" key.
Select the language you wish to use, and then choose *"Disk Utility"* from the menu bar.
Your HD should appear in a panel on the left hand side of the window which opens. Select it and then click on the *"repair disk"* button in the right hand section of the window.
Once this process has been completed restart your computer and run *repair permissions* from Disk Utility.
* If Disk Utility (from the install DVD or HD)is unable to complete the repair, you will need to use a stronger 3rd party utility like DiskWarrior, Techtool PRO (not Deluxe) or Drive Genius.
=============
How much HD space is left on the iMac?
How much RAM is installed?
==============
Which "model" & "generation" G5 iMac does your mother have?
Need this info so that the knowledgeable users can provide you with the proper troubleshooting solution(s).
http://docs.info.apple.com/article.html?artnum=301724-en How to identify your iMac
http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh355.html Getting information about your computer
You can have this info displayed on the bottom of every post by going to 'My Settings' which is located in the column on the right under your name, and filling in the information asked for.
Thank you

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Earlier last month, I posted a topic about how my Macbook Pro "crashed" and I ended up having to reformat my HD and it was working fine afterwards as long as I didn't install any OS X updates.
Just yesterday my Macbook started to just randomly freeze every two seconds when I went to open something, or type a simple word, or just when it started up & loaded the desktop period.
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PROBLEM IS.
Now when I turn it on, it always wants to boot in safe mode, but as the little bar is loading, it shuts the entire computer off before it even finishes loading (it starts to load and about less than a min later it shuts off). It happens EVERY TIME I turn my Mac on. What is the problem? Does AppleCare cover this? I've only had my Mac less than a year and already I'm experiencing problems that I shouldn't be having AT ALL.
I don't live close to an apple store, and I'm in college, so I can't just up and drive hours away to find a store.
I have an iPhone 4 and iPod Touch 4th Generation now I'm afraid to even sync it with the Mac when it is fixed because I don't want to lose everything.

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http://www.macmaps.com/backup.html#RECOVER
Purchase AppleCare if you haven't already. You can do so anytime in the first year.
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My MacBook Air has problems connecting to a saved network when I first open it.

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Hello, nheredia05.
Thank you for visiting Apple Support Communities.
There are a couple steps that I could recommend trying. Power cycle the router and test to see if the behavior persists. Next, try an remove this prefered network from your list and then add it back again. Make sure all firmware updates have been processed on the router side and the settings have been optimized for performance. If the issue still persists try the steps in the second article.
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hi,
something ist wrong with my MacBook.
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one peep means - RAM ist not installed, but it is and i changed it too - no results.
What kind of promlem is it????
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http://www.computerhope.com/beep.htm
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My Macbook starts up, shows the screen saver, then immediately goes to sleep. I tap the spacebar, it comes back for a second, shows the tool bar and the hard drive icon then immediately "goes to sleep". This can go on forever, on, sleep, on, sleep.

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Has your Macbook Air overheating problems been solved?

Hi All,
Has there been a solution to the Macbook Air overheating problem for you?
I'm considering selling my MBA but want to see first if there has been any new updates on this issue.
I have a Macbook Air with the specifications as follows:
Model: MacBook Air 1.6GHz Intel Core 2 Duo
Production year: 2008
Production week: 15 (April)
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Have had the computer for about a year now and it has been constantly overheating and becoming more or less unusable when doing so. Have been hoping upgrades to the software would solve this eventually but that does not seem to have happened.
As I'm writing this room temperature is about 20 degrees celcius. Laptop sits on a table with power cable plugged in. Not running any external screen. There is no video streaming or music playing. Only the Firefox browser and a few more idle apps are active such as Mail and Skype (in the background). Even under these conditions the fan is currently running loud at 6100rpm and the Macbook Air is very hot underneath.
CPU temperature is currently 54 degrees Celsius. Both cores seem to be active.
Now, as an experiment I will head over to YouTube to watch a video and open up Microsoft Word in the background, a perfectly normal usage for a computer this new. This is what happens:
The computer starts to become painfully slow. After for example clicking an item in the browser there is a 1-3 second delay before the click actually becomes effective. It's now so hot underneath that I would not want to keep it in my lap. It is hard to use the mouse pointer properly as it does not update in realtime, I have to assume where it will land based on my movements. When scrolling, the spinning wheel icon becomes active. Everything is now happening in slow motion.
Video is lagging heavily. I can only see probably 1 out of every 10 frames or less of the video. All applications running are very slow. CPU temperature is now 64 degrees celsius. Fan is at 6200. Computer is now unusable for me. When I scroll a page in the browser it takes about 2-3 seconds before anything happens. Changing tabs takes 5-6 seconds after I click them. I will have to shut it down before re-starting and resuming work. When room temperature is even higher on a hot day needless to say everything gets a lot worse quicker.
Is this normal for Macbook Air's? If that is the case they are more or less unusable for most types of normal 2009 year usage (video, audio, browsing, office work etc).
What solutions have you found? Coolbook? Software/Firmware updates? Hardware changes? Please let me know if you have been able to make your MBA not overheat under normal usage.

Hi Everybody,
Thanks for your replies to start with.
I have tried to install Coolbook now and has it running. When using 'throttling' and letting it change CPU speeds (I think..) the problem still remains. When watching a video or other demanding task the temperature goes way up. Running a CPUTest (small or big) gets CPU temperatures of up to 84-85 C. Fan of course at 6200rpm all the time.
Right now, I have Coolbook set to 800Mhz and 0.9V. Apps running are Firefox, Skype, Mail and iTunes with no audio playing. CPU temperature at 56 c and fan speed (as usual) at 6200rpm. I can use the computer now. It is still lagging and not very fast at all. Sometimes text appear 1-2 seconds after I have written it on the keyboard.
So Coolbook has made a difference for me, but only when putting the CPU speed down to 800MHz. I wouldn't call reducing the CPU speed to half a 'solution' though and will not keep that as a long term solution. Reducing voltages for higher CPU-speeds 0.9875V for 1600MHz does not work, it still heats up massively.
Have used the MBA for the whole day today and can't recall a single time the fan has not been around 6200rpm except right after boot.
Thanks for the tips on upgrading to 10.5.8. I will try that right away and let you know how it works out.
Have also considered buying some cooling device but just as you say that feels like a bit of a last thing to resort to.
I'm surprised Apple hasn't responded stronger to this. Had this happened in the car industry we would have seen thousands of cars being sent back to the garage to be fixed.
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dedegodoy wrote:
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