Computer locks up after an hour of being idle?

computer locks up after an hour of being idle

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of this exercise is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login. Boot in safe mode and log in to the account with the problem. First, disconnect all wired peripherals except keyboard, mouse, and monitor, if applicable, and remove all aftermarket expansion cards. The instructions provided by Apple are as follows:
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including your login items.
Launch the application(s) and test. Same problem(s)?
After testing, reboot as usual (i.e., not in safe mode.)

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I'm having problems upgrading from 10.6.8 to Yosemite. My computer locks up after the download and installation process. Does anyone know how I can overcome this problem?

I'm having problems upgrading from 10.6.8 to Yosemite. My computer locks up after the download and installation process. Does anyone know how I can overcome this problem?

Repair the Hard Drive and Permissions
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When I''m playing a video clip the computer "locks-up" after a few seconds - what can I do to fix it please?

When I''m playing a video clip the computer "locks-up" after a few seconds - what can I do to fix it please?

The latest is happening with the 12 little video clips sent to me by Apple entitled "Get to know your new iPad"
They run from 3 to 32 seconds and then "lock-up" on my iMac.
I don't have photobooth on my iMac
The link to the Apple promotion is :-
http://www.apple.com/ca/ipad/guided-tours/?cid=CDM-CA-DM-P0009300-160603-EN&cp=e m-P0009300-160603&sr=em
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My computer is crashed after 3 hours, when am running an Executable file from LabView 6.0.2

My VI is using DAQ6025e and GPIB cards, it is countiniusly writing data to files and talking with 2 GPIB instruments and one Serial instrument. Sudenly after 3 hours of perfect working it is crash my computer.
Does any body know why ??? Help? S.O.S?

Some questions to help us troubleshoot:
1)How crashed is your computer when it crashes?
Blue Screen Of Death crashed? If you don't know about BSOD then that
is when your computer presents a blue screen (white in XP) and tells
you that the system is halted, gives you a register dump and the
memory address where it stopped (all of which is useless unless you
are an assembly language wizard) and then you have to reboot the
machine.
Application error that kills LabVIEW.exe? Usually a pop-up MSGBOX
style dialog box will appear with a such and such error occurred in
LabVIEW.exe or another application and an OK button.
VI Slows to a crawl w/hourglass in the app window? Program doesn't
stop executing, it just stops responding to user inputs.
LabVIEW error cluster error that causes the VI to quit?
2) What O/S are you running? Win 3.1, Win 95, Win 98, Win NT 3.1, Win
NT 3.5, Win NT 4.0, Win2000, WinME, WinXPHome, Win XPPro?, Linux?, Mac
O/S?
In the Microsoft family, WinNT and Win2000 are by far the most stable
and reliable of the various versions of Windows with Win95 and Win98
having a lot of problems running for long periods of time. Make sure
that you get WinNT 4.0 updated to service pack 6 if you are still
using 4.0 but haven't updated the service pack level yet. There were
quite a number of problems with it when it first came out that have
since been cured.
3) Have you run the LabVIEW VI profiler yet? This will point out
memory leaks that are due to dynamically built arrays using shift
registers etc. or appending to strings, or improper IMAQ management,
etc.
4) Have you brought up the task manager and looked at the memory
allocated for LabVIEW.exe and for the whole system as well? Is it
growing? Sometimes there can be memory leaks that don't show in the
profiler that will show in the task manager when you look. These can
be due to bugs in LabVIEW itself or some driver for some hardware you
are using, etc.
If you are not running NT or a later derivative, then you won't have
task manager available but you can get diagnostic tools that are very
similar to task manager from off the web.
5) How much memory do you have in your PC? How fast is your PC? What
does the CPU % usage look like under task manager when you first start
your app? If it is running >40% CPU usage for any significant amount
of time at the start then perhaps your PC is overloaded with work and
you need a faster PC or your code needs redesigning. I like data
acquisition systems to operate <25% generally speaking. This number
seems to improve the reliability of the code that is running on them.
6) How much H/D space is available? You say you are writing data to
files. Your h/d space isn't running out is it?
7) Is it possible to run one instrument at a time for several hours to
see if it is a particular instrument that is causing the crash? Make
sure that your GPIB cards are properly configured so that they don't
share resources with any other devices(IRQ, DMA, memory addresses,
etc.) It may be possible that they behave fine most of the time even
with shared resources but if they ever try to send a command
simultaneously and they share resources, they could "collide" and
crash your PC. You can check all this out in the control panel and/or
MAX.
8) Is it possible that your serial port is getting hung up after
running a long period of time? Serial port UARTS are notoriously
finicky especially over longer line lengths and higher data rates. It
could be that your serial instrument is locking up your app or your PC
serial port is locking up your app and causing the crash. Can you put
a serial port analyzer in between your serial instrument and your PC
to see what's going on when it crashes?
9) Are you trying to read or write to the serial port in more than one
thread or while loop or dynamically launched vi? If you are you MUST
protect the serial port access with a semaphore or a VISA resource
lock. You CANNOT use a boolean global to protect access. Regular
globals aren't atomic and you can have race conditions that result in
unintended serial port collisions between differen threads. I have
seen this lock up multi-threaded serial programs before to the point
of requiring rebooting.
This problem can be especially frustrating if you haven't done
multi-threaded before. The port won't necessarily lock up right away
or at the same time every time. You MUST make sure that serial port
access is limited to ONLY ONE execution thread at a time.
10) Is there another application or service running in the background
with your application that may be trying to access the serial port or
GPIB cards when you aren't expecting it? This could cause a collision
that could crash your system as well.
Douglas De Clue
LabVIEW developer
[email protected]
Yan wrote in message news:<[email protected]>...
> My VI is using DAQ6025e and GPIB cards, it is countiniusly writing
> data to files and talking with 2 GPIB instruments and one Serial
> instrument. Sudenly after 3 hours of perfect working it is crash my
> computer.
> Does any body know why ??? Help? S.O.S?

Computer locked up after using boot camp

after trying to install windows on my mini mac, my computer locked up, black screen with the words "no bootable devise--insert boot disk and press any key

Hello, try this...
If 10.7.0 or later...
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.

I just got my computer working again after 6 months of being without it, and now iTunes is saying it is not authorizable? How do I fix this?

I just got my computer working again after six months of it being down. I have had it for almost five years and it has been synced with my iPhone as well. I'm trying to re-sync it now but it won't transfer purchases I've made from iTunes on my iPhone and wants me to authorize my computer. I try, and then it tells me my account is already on 5 computers (it is NOT) and that this computer cannot be authorized. HOW do I fix this???

Log in to iTunes, go to "view your account info" on the itunes store, deauthorise all five, (Please Note: this can only be done Once every 12 months) and then re-authorize your current Computers one at a time.
Authorise / Deauthorise About
http://support.apple.com/kb/HT1420

Does the computer lock me after a certain amount of failed password attmepts, even when i finally have the correct password? recently changed root account password, but then forgot today and when tried again didn't work. if so, how long does lock last?

Ok. So I just changed my ADMINISTRATIVE ROOT PASSWORD the other day and when I tried to log in today I forgot it. I tried different variations of
the password I had set, because I wasn't sure if i had maybe set it in Caps Lock or used a different number in the sequence. I got the message several times
about "too many attempts, try again later". Does the computer lock me from signing in even with the correct password after a certain amount of failed
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Also, I don't have any other administrative users set up on my macbook pro. I'm the only one who uses it, so I've always just used that original User from my
original setup.

giselafromclongriffin wrote:
Ok. So I just changed my ADMINISTRATIVE ROOT PASSWORD the other day and when I tried to log in today I forgot it. I tried different variations of
the password I had set, because I wasn't sure if i had maybe set it in Caps Lock or used a different number in the sequence. I got the message several times
about "too many attempts, try again later". Does the computer lock me from signing in even with the correct password after a certain amount of failed
attempts? If so, how long does this lock last for? When can I try again? Or is there something I need to do to remove that lock now? I'm pretty sure I
had the right password finally but it still wouldn't accept it.
Also, I don't have any other administrative users set up on my macbook pro. I'm the only one who uses it, so I've always just used that original User from my
original setup.
Do this:
1. Reboot
2. Hold apple key + s key down after you hear the chime. (command + s on newer Macs)
3. When you get text prompt enter in these terminal commands to create a brand new admin account (hitting return after each line):
(Type these commands very carefully)
mount -uw /
rm /var/db/.AppleSetupDone
shutdown -h now
4. After rebooting you should have a brand new admin account. When you login as the new admin you can change the passord on the old one.

Computer locks up after burning a music CD to Itunes

Just purchased a new Nano 8Gb IPOD,... loaded Itunes 8 updates to my PC,.... when I try to burn a CD to Itunes,.. at the end, the computer locks up,... the files will be transferred,.. but this is a real pain if it locks up after every CD...... Has anyone else experienced this?? I'm running Window XP, have the Version 2 Operating System. Any help is greatly appreciated.
Thanks!!!

the last time I tried to burn a cd from itunes, my system crashed and my optical (a new dual layer superdive installed less than a year ago) died... I haven't a clue what happened!
I ended up buying an external and though itunes recognizes it, when I try to burn an audio cd (mp4 to aiff), it goes through the entire process of 'seemingly' converting the files, the cd shows ALL the information, even when re-inserted into the drive... but there's NO actual information on the disc. It 'appears to play' but no sound comes out and there's no activity in the equalizer at all.
On external cd players, one player did the exact same thing and another just refused to even see the cd as readable.
I've also tried burning from Toast, which ALWAYS worked in the past, with the same result.
What's the point of purchasing music in itunes if I can't burn the music to cd?
has anyone been able to solve this?
thanks... namaste

Firefox and Internet Explorer both close after 5 minutes of being idle

Both Internet Explorer (11.0.2) and Mozilla Firefox (Mozilla Firefox yahoo! edition yahoo - 1.2.1) close simultaneously after approximately 5-10 minutes of being idle. I've tried reloading both to no avail. I switched to mostly Firefox usage because of it's stability. Any assistance would be greatly appreciated! Thank You in advanced for your time and attention in this matter...[email protected]

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
Did this fix your problems? Please report back to us!

My 8gb Nano needs daily reset, freezes after 4+ hours of being off.

Hi there,
My 8gb iPod Nano needs to be reset every morning, i.e. it freezes after being turned off for more than a couple of hours. Oddly, after only an hour or two, it'll still work perfectly. I even had this problem when I initially set it up for the first time (last week) - it needed to be reset before ever being used!
1) I ALWAYS disconnect properly (eject in iTunes, wait for the iPod to say it's ok to disconnect - safely disconnected from PC)
2) I've done the 5's multiple times and I've had no luck; the Nano is fully charged as well.
3) I've disabled most services (e.g. Diskeeper, NOD32) and hardware (e.g. TV Tuner), still no luck.
The warranty is out in January 2009, which is only 6 months from now - so I'm guessing it sat on a warehouse rack for quite some time; since limited warranty supposedly covers 1 year.
I redeemed it through Air Miles.
Anyone had a similar problem? Any ideas?
Thanks,
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I should also add:
I'm using Windows Vista Ultimate SP1
Functionality, when on, is perfect.

Hey!! i just moved from miami to vienna...i conected my desktop with a big convertor...to 220...and my computer shut down after one hour!!

Hello!!
I just relocated to Austria,Vienna...and I just recieved my moving from miami.
I just conecyed my computer with a convertor for electricity from 110... to 220 (europe)
it was working for one hour...and sudenly..it shut down completly!!
what can I do?
thank you!!
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Joanna...You don't need and shouldn't use a convertor. If you look at the message I sent you back in June I suggested getting an adapter which only allows the plug to fit in the wall. someone else made the same suggestion.
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You can buy an adaptor at any electirc store or at Saturn, a large store on Mariahilferstrasse fairly cheaply.
If you do get an adaptor and it still doesn't work, there are a few resellers in Vienna, but no Apple owned store. It's too small a market.
There are a couple of MacShark stores, one at the foot of Mariahilferstrasse near the Kunsthistoriches Museum. I There is also a very good store, honest and a good reputation called Digital Store at Stiftgasse 21, in the 7th district, not too far off of Mariahilferstrasse.
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Good luck, but try an adaptor first.

My computer locked up after downloading the iTunes update

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Worst case, unplug it. Let it set for 30 seconds, plug it back in and boot it up.

My iPod Touch 5 won't turn on.A minute before it was working perfectly fine and then i locked it. after an hour when i check on my itouch. it won't open. they say try to restart it using the lock home button trick.My home button is broken what to do?

please someone help me now.

Connect the iPod to your computer and restore via iTunes
iTunes: Restoring iOS software
If still problem, make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem besides the Home button.
Apple Retail Store - Genius Bar

Zen Micro's Battery flat after 14 hours of being turned of

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Computer locks up after displays fill with symbols

I am running Leopard on a 2006, 8GB Mac Pro. Today, little squares, made up of vertical lines, showed up all over both monitors and the computer froze. Any idea what is wrong?

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Computer locks up after an hour of being idle?

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