Why does my MacBook Pro sometimes restores its RAM when I open it, even though it did not run out of battery?

Sometimes when I open my MacBook Pro, it restores its RAM, as if it has run out of battery, even though it has not run out of battery and it has been charging. Why does this happen, and should it be happening?

It's similar to hybernation mode in Windows.
If you put your laptop to sleep, after X amount of hours it will move to the "deeper" sleep level (save memory to disk and shut down...), to save up battery.
Otherwise if you left your laptop asleep in the evening, you could wake up to a dead battery. Not a great surprise when you in hurry to leave the house with your laptop...
You can find our more here

Similar Messages

Why does my Macbook Pro keep dropping its wireless connection?

Hi everyone,
Last year I purchased a 2013 Macbook Pro 13". Everything had been working well up until yesterday afternoon. My wi-fi connection keeps dropping roughly every 5 minutes for no apparent reason, with an exclamation mark flashing over the signal strength icon. It runs on Mavericks with all software updates etc. up to date. I live in a student house with 7 other people, so the network could be overburdened, though it's been fine until now. I've reset Safari, deleted info regarding the wireless network and reinstalled it, and deleted all the keychain info, but it hasn't really helped.
I would be grateful for any responses, thanks!

Hello aidenhh,
Thank you for the details of the issue you are experiencing with Wi-Fi on your MacBook. I would be concerned about this too.
I recommend following the steps in the section labeled, "Symptom: The network connection drops unexpectedly" in the following article to resolve an issue like the one you described:
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Thank you for posting in the Apple Support Community.
Best,
Sheila M.

Why does my MacBook Pro make a clicking noise when i lift it up.

Hi i just recently got a MacBook Pro. I get this weird clicking noise from the right side of the trackpad. I don't know why its doing this noise but i think its got something to do with the superdrive or cd drive. This only happens when i pick it up or rotate it around on my lap.

Just to clarify... and in case you're not familiar with how hard drives work... There are metal platters in your hard drive that spin at either 5400 or 7200 times per minute (that's either 90 or 120 times per second respectively). There is a little read head that floats less than a papers width above that super fast spinning platter. If you bump your computer while the read/write head is over the platter, there is a chance it can bump into the spinning platter causing permanent damage to it. As a result, hardware manufacturers have developed ways to lock the head when a "sudden motion" is detected in order to reduce the chance of damage. In some cases (like the MacBooks), it is built into the notebook itself... in other cases, the technology is built into the drive. The clicking you hear, as others have indicated, is the sound of the drive head locking... it's a good thing.

Why does my macbook pro creat a new account when i wanna migrate pics to my account with the apple software?

Yesterday i migrate my pics and songs with the apple migrate progeam from my Windos laptop to Macbook pro. I did wanna migrate them to my acount. It took 8hours and 30 min to do it and then today i seen that it creat a new account. So i can't use the pics and songs with my main account which i wanna use always. WHY THEY MADE A NEW ACCOUT??? I DIDN'T WANNA IT! and why does they don't tell before? Apple said i can migrate when ever i wanna my date but never said it will creat a new account. So how can i now take my pics and songs from the stupid new account to my main accound and delete that new stupid account?
I would be very glad and happy if anyone could help me.
Thank you very much

In the admin account, open System Preferences then select Accounts - Login Items
Delete any apps or files you have listed there to open when you startup, then restate your Mac.

Why does my MacBook Pro fan go into overdrive when the laptop is not even warm?

The fan on my MacBook Pro is going into overdrive without any form of heat coming from the laptop. It causes the computer to be really slow as though there's a delay on the cursor, then makes it crash. It also disconnects me from the internet and won't reconnect without a restart. Had this trouble for a few months but it stopped for roughly four months without giving any clue as to what I had done to stop it, but has now restarted again out of nowhere.
I have tried an SMC reset countless times and it makes no difference. Operating system is up to date.

Either on Microsoft word or on FB and maybe some online editiing.. I have installed Istat and waiting for it to occur again so i can measure the heat and CPU usage.. any idea as to why this is happening??

Why does my macbook pro forget the wifi network when i only set the iPhone to forget it?

i just dont get. what is the logic behind the mac synchronises network access between devices? i set my iPhone to forget a certain wifi network and now my macbook pro also forgot it, so i had to reset my router for this. pretty annoying. any workaround if i want iCloud to keep my passwords synchronised but not sure up the network access instantly on all devices?

I had to call Apple and the tech made me enter a bunch of terminal commands to fix this. Unfortunately I can't tell you excactly what it was. I think the best way would be to call Apple.

Why does my macBook PRO OS 10.9 reboot when it goes to sleep mode?

12.10.13
whenever my MacBook PRO [2012] goes into Sleep Mode, the computer reboots. started to happen AFTER installing Mavericks/OS 10.9. what is going on?

Sleep – Slow Wakeup/Requires Reset

Why does my MacBook Pro show a prohibitory sign when I start it up?

On the white screen it starts up as an apple and then turns into a prohibitory sign. It has the spinning thing on the bottom so it looks like its trying to start up but it isn't doing anything and I keep having to shut it off! Help please!!

Start with this:
http://support.apple.com/kb/ts2570
Ciao.

Why does my macbook pro go into 'install' mode when i turn it on?

since my last update (about 6 weeks ago, i don't use it much) when i turn it on i get the apple logo and the update bar, the update bar fills up to about halfway then my password screen comes up and i can gain access - it is driving me nuts.....someone save me from doing a hat dance on the bloody thing!
Thanks,
Steve

OS X Yosemite 10.10.
That is normal. The familiar spinning gear icon is replaced with a progress bar now.
Best.

Why does my macbook pro make a clicking noise when i turn it on?

I turned it on yesterday after owning it for just three days and when theres the white screen with the apple logo is when it makes the noise. The noise is like a CD being ejected. I have no disc in the CD drive though. Please help me. Should i bring it bac the the apple store?

Take it back to the Apple store as this is not normal.

Why does my macbook pro keep showing me the force quit screen and states that there is not enough memory? The activity monitor shows that there is plenty of memory available.

The message displayed in the Force Quit Applications window says "Your Mac OS X startup disk has no more space available for application memory. The only applications that I have open are Safari and Finder and I am simply reading a discussion board.

It would appear that this error can be caused by an excessive system demand for swap space that exceeds the maximum allocation. Just try restarting the computer.
I found a possible solution for finding the cause of the error. Open Activity Monitor. Be sure you have the Real Memory column showing and the Processes dropdown menu set to All Processes. Select the Real Mem column and sort in descending order. Leave Activity Monitor open. The next time the error appears the application at the top of the column is the one causing the error.

Why does my Mac Pro like to restart itself when I opened multiple apps?

I have a 2012 Mac Pro with OSX 10.8.4 and ever snice I brought this laptop it has been restarting itself. Does anyone have any idea why it like to this? It's getting annoying.
Thank you!

SivilayMN wrote:
I have a 2012 Mac Pro with OSX 10.8.4 and ever snice I brought this laptop it has been restarting itself. Does anyone have any idea why it like to this? It's getting annoying.
Thank you!
You are still under warranty. Call Apple Care. Make sure you get a case number as all repairs have an additional 90 days of warranty.
#1 - You have 14 days from the date of purchase to return your computer with no questions asked.
#2 - You have 90 days of FREE phone tech support.
#3 - You have the standard one year Apple warranty.
#4 - If you've purchased an AppleCare Protection Plan, your warranty last for 3 years. You can obtain AppleCare anytime up to the first year of the purchase of your computer.
Take FULL advantage of your warranty. Posting on a message board should be done as a last resort and if you are out of warranty or Apple Care has expired.
Mac Pro

Why does my MacBook Pro and Mac Pro keep freezing?

Why does my MacBook Pro freeze?
MacBook Pro
2.4 GHz intel Core2 Duo
4BB 1067 MHz DDR3
OSX 10.6.8 Snow Leopard
I turned it on and I went to safari to look things up. Safari froze and then the whole thing became unresponsive - the mouse could move the cursor but it couldn't open any programmes.
Tried safe boot several times. No help.
Tried to repair disc permissions. The first time it got a little way then said 'user stopped repair' or something - though I didn't touch it. Tried again it got all the way through and said 'repairs complete'. But no help.
Couldn't clear cache etc as couldn't get to the relevant part to do it.
Opened in single user mode. Ran the fsck -fy thing twice. First time it said both “The volume appears to be OK” AND “FILE SYSTEM WAS MODIFIED.” In 2nd run it just said “The volume appears to be OK”. No help.
Booted it up from the Superduper bootable backup version on a USB external drive. It seemed to boot up ok but then tried to click on something and the same thing happened - spinning beach ball and it just hung.
Erased hard drive and reinstalled snow leopard but it just does the same thing. Suggesting a hardware issue not software but...the Eerie thing is, we tried backup version on boyfriends Mac Pro and it worked fine on there but 24hrs later his Mac Pro has got exactly the same screen freezing, unresponsive issue. Could this suggest there's something evil lurking on my back up? Can't get an appointment at Genius Bar until next week and need to get some work done, so hoping someone might have some ideas?
Cheers
Kerry

KaiDonald wrote:
... does Apple products work much better with using Apple routers?
While a genuine Apple router is likely to result in success, the reason for having one instead of another product is that it eliminates a lot of uncertainty. For example, we do not know the model D-Link product you have so no one is in position to speculate what the problem might be. Also, it makes support on this forum easier since there are only three AirPort models to choose from and they all work more or less the same.
Generally speaking your iPods, iPads, MacBooks, and AppleTV ought to work with any router though, provided it is fairly recent and meets accepted industry standards. If in doubt you can purchase an AirPort Base Station, which comes with 90 days of free telephone support. If it does not result in any improvement for you, you can always return it for a complete refund. The return period is 14 days and be sure to keep all material - receipt, box, manuals, etc...
If you elect this option be sure to follow its installation instructions, the most important of which is to power down your modem prior to connecting the AirPort Extreme, Express, or Time Capsule. All your other equipment will need their network settings adjusted to "forget" the D-Link network and connect to the new one.

Why does my Macbook Pro keep shutting down during installation of OSX Mountain Lion?

Why does my Macbook Pro keep shutting down during installation of OSX Mountain Lion?

Hmm, good luck then!
I'm pretty much exactly on the opposite side of the planet, but I've been to Vermont and remember its rural beauty well. However, I can't imagine you having the only Internet connection within a reasonable radius (where "neighbors" hanging off the same ISP don't count). Uh, that note only if your wired connection to the router produces no good result, either...

Why does my macbook pro stop loading the webpage every time i try to access netflix or youtube?

Why does my macbook pro stop loading the webpage (in safari) every time I try to access netflix or youtube?

Back up all data before proceeding.
This procedure will unlock all your user files (not system files) and reset their ownership, permissions, and access controls to the default. If you've intentionally set special values for those attributes on any of your files, they will be reverted. In that case, either stop here, or be prepared to recreate the settings if necessary. Do so only after verifying that those settings didn't cause the problem. If none of this is meaningful to you, you don't need to worry about it, but you do need to follow the instructions below.
Step 1
If you have more than one user, and the one in question is not an administrator, then go to Step 2.
Triple-click anywhere in the following line on this page to select it:
sudo find ~ $TMPDIR.. -exec chflags -h nouchg,nouappnd,noschg,nosappnd {} + -exec chown -h $UID {} + -exec chmod +rw {} + -exec chmod -h -N {} + -type d -exec chmod -h +x {} + 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
You'll be prompted for your login password, which won't be displayed when you type it. Type carefully and then press return. You may get a one-time warning to be careful. If you don’t have a login password, you’ll need to set one before you can run the command. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
The command may take several minutes to run, depending on how many files you have. Wait for a new line ending in a dollar sign ($) to appear, then quit Terminal.
Step 2 (optional)
Take this step only if you have trouble with Step 1, if you prefer not to take it, or if it doesn't solve the problem.
Start up in Recovery mode. When the OS X Utilities screen appears, select
Utilities ▹ Terminal
from the menu bar. A Terminal window will open. In that window, type this:
res
Press the tab key. The partial command you typed will automatically be completed to this:
resetpassword
Press return. A Reset Password window will open. You’re not going to reset a password.
Select your startup volume ("Macintosh HD," unless you gave it a different name) if not already selected.
Select your username from the menu labeled Select the user account if not already selected.
Under Reset Home Directory Permissions and ACLs, click the Reset button.
Select
 ▹ Restart
from the menu bar.

Why does my MacBook Pro sometimes restores its RAM when I open it, even though it did not run out of battery?

Similar Messages

Maybe you are looking for