MacBook Pro :: Hard Drive Installed With Motion Sensor - System Slowed Down
Aug 20, 2010
I replaced the hd in my 13" macbook pro with a western digital blue, 500gb. My concern is that the computer is not as snappy as I think it should be. I understand that I might have installed a hard drive with a motion sensor and that the motion sensor of the hd may conflict with the motion sensor of the mac itself and that might be the source of the slowdown? If so, which sensor should I deactivate, the mac's of the hard drive's?
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May 3, 2010
What are some good hard drives that have a freefall/sudden motion sensor in them? Planning on putting it in the optical drive bay. I am aware of the scorpio black, but I am wanting something with a bit more storage.
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Aug 11, 2010
I'm going to have to pop a larger hard drive in this Macbook (2007) to buy a little time before I replace the computer. Does anyone know if my Macbook's sudden motion sensor can work with *any* replacement hard drive to tell that drive to park its heads in the event of a drop? Or does that only work with certain ones?
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Apr 29, 2010
I have ordered several new MBPs (5 with SSDs...) for my clients, but have a mechanical HDD for myself in my new MBP; I just thought about the motion sensor that locks mechanical HDD read heads on sudden acceleration, and realized that it is an OS feature... Has anyone that has a mid 2010 MBP and a SSD noticed HDD lock in sudden movement with a SSD?
You can simulate this 'lock' by moving the MacBook suddenly when playing content from the drive... Has anyone seen the drive cause playback to halt for 2-3 seconds while the SSD 'recovers'? If so, this needs to be fixed...
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Feb 14, 2009
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Do the MBAs with a SSD still have a sudden motion sensor? I was trying to use smack book with my Rev A SSD, but the SMS is either broken or missing, trying to figure out which it is.
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Jun 7, 2010
I've just installed a Crucial C300 256Gb in my Macbook Pro 17" and replaced the Superdrive with a Seagate 500Gb.
I'd like to disable the SMS for the SSD but keep it for the 2nd HD. Is there anyway to do this?
I believe the following is for all drives at once.
# to disable
sudo pmset -a sms 0
# to enable
sudo pmset -a sms 1
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Sep 19, 2010
I just dropped in a 1 TB drive into my 17" MacBook Pro and it seems like that the Sudden Motion Sensor doesn't work not. I do not hear the sound when it engages as I did with the stock 500 gig drive that was in there. My understanding is that the Sudden Motion Sensor was not built into the drive and it was built into the notebook itself. Shouldn't I still be hearing the drive stop when the Sudden Motion Sensor engages?
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Nov 22, 2010
Downloaded iAlertU and it turned out not to work.
I then found no sudden motion sensor present in the system profiler of new macbook air 13. Looks like we miss another quite cool feature.
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Aug 23, 2010
Been having this clicking sound on my 13"MBP lately. I was told it might be the motion sensor being too sensitive. Anybody know how to reduce this sensitivity?
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Dec 1, 2010
I'm installing the Samsung SpinPoint drive tonight and was curious. Does the sudden motion sensor still function properly? The reviews on Newegg don't seem sure. One guy thinks it still works, but he simply
no longer hears it, and another is convinced that without the clicking sound that comes with moving the MBP, it's simply not functioning.
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Sep 11, 2009
My new MacBook Pro's "Sudden Motion Sensor" won't seem to enable. I've done the Terminal commands listed on Apple's support page and I get a "1" instead of a "0" next to the results, implying that the system thinks it's turned on, yet under "System Profiler" it says "Disabled."
I'm not sure if this would influence it but, I do have a WD500GB Scorpio Blue drive inside and was suffering from the "Beach ball of death" issues associated with the 3rd party HDD's, so I downgraded from the 1.7 EFI Firmware to the 1.6. Anyone experienced this issue or have any recommendations?
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Mar 29, 2010
Here's a new one (for me anyway).
2007 MacBook: 2.16 Ghz, 3GB RAM, Intel GMA etc.
Anyway, all of sudden, any motion I make kills the backlight of the screen. In the right light you can still see things and the computer still works perfectly, just extremely hard to see. Have to do a restart in order to get going again.
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Jun 9, 2012
I was looking around the big web recently, and saw liquid mac. I downloaded and installed it on my 2011 13 inch macbook pro but it said it couldnt find a sudden motion sensor. So i checked system information, and it confirmed this... I didnt have a sudden motion sensor. Should i go and get this fixed somehow?? can they fix it or will they replace my laptop? Also, the hdd is factory installed if that makes a difference. I have applecare
Info:
MacBook
Pro, Mac OS X (10.7.4)
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Aug 25, 2014
I put a 1TB Samsung 840 EVO in my MacBook Pro (9,1). Should I disable the sudden motion sensor? Does it do anything else other than park the hard disk (like something with the fans)?
Info:
MacBook Pro, OS X Mavericks (10.9.4)
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Jul 10, 2009
Some hard drives have a motion sensor in them. These are NOT supposed to be in MacBook/Pro's as the Macs have its own Sudden Motion Sensor. If your MBP has both, they could be conflicting with each other. Try this simple test to see if the problem goes away: (if you're not adventurous, don't proceed)
[URL]
<<To disable the Sudden Motion Sensor:
Find the current status of Sudden Motion Sensor:
(log in as administrator)
1. From the Finder's Go menu, choose Utilities.
2. In the Utilities folder, open Terminal.
3. When the command line appears, type sudo pmset -g and press Return.
4. Type in the administrator password when prompted and hit Return. This command queries the computer for the current setting of the Sudden Motion Sensor, which you can determine by locating the ams entry (in Mac OS X 10.3) or the sms entry (in Mac OS X 10.4 and 10.5) and looking to the right to determine its value. The default setting is "1" (turned on). 0 means off.
Disabling the Sudden Motion Sensor in Mac OS X 10.4 and 10.5:
1. In Terminal, which should still be open from the previous step, you can disable the Sudden Motion Sensor by typing sudo pmset -a sms 0 and pressing Return (changing the setting to a zero disables the module).
2. Type your administrator password when you are prompted and press Return.
3. Type the sudo pmset -g command again to be sure that the setting has been applied.
Any changes that you make to the Sudden Motion Sensor setting remain in effect even after you restart the computer. If you choose to disable the Sudden Motion Sensor, Apple recommends that you re-enable it as soon as possible in order to take full advantage of the feature.
To re-enable the Sudden Motion Sensor:
Find the current status of Sudden Motion Sensor:
1. From the Finder's Go menu, choose Utilities.
2. In the Utilities folder, open Terminal.
3. When the command line appears, type sudo pmset -g and press Return. Type your administrator password when you are prompted and press Return. If you have the Sudden Motion Sensor turned off, the value of the ams entry (in Mac OS X 10.3) or sms entry (in Mac OS X 10.4 and 10.5) will be a zero (0). >>
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Dec 20, 2009
i have big problem with Sudden Motion Sensor (SMS) its impossible to deactivate it.
I've used commands from [URL]
Snow Leopard 10.6.2, MBPro 15.4" 2.66 Mid 2009
Always sms has value -1, i cant set it to 0 (turn off)
here is terminal log:
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Nov 11, 2008
I think this post would fit in the Hardware/Notebook-section as well but since I am looking for a OSX workaround, I will post it here:
I have a problem with the sudden motion function in my PowerBook. When switched on, the SMS causes to switch off the internal hard-drive at random, even if the Laptop stands on a perfectly still and flat surface. This results in interruptions that make it impossible to work with the computer.
I already had this problem when I was running Panther (10.3.9), and deactivated the SMS with the "pmset"-command using the Terminal at the time. As long as I was running Panther, this workaround worked perfectly for me, I had no more hard-drive-interruptions.
Later, however, I made the Upgrade to Leopard (I skipped Tiger), making a clean install after formatting the PowerBooks hard-drive. Now the SMS was active again (and displayed "active" in the System Profiler) and the HD-interruptions were back.
So I tried to deactivate the SMS with the "pmset"-command - this time without result. I can set the value of "sms" to 0 and back to 1 all right - the Terminal shows the corresponding value when prompting "pmset -g".
Unfortunately this has no effect to either the hardware (the interruptions are still there) or the System Profiler (is displays "active" for the sms, regardless of the value that is shown when using "pmset -g"). I am aware that the variable was altered from "ams" to "sms" from Panther to Tiger (and subsequently Leopard), but neither "pmset -a ams 0" nor "pmset -a sms 0" would work.
To exclude the possibility of a real hard-drive-malfunction, I bootet the Powerbook from an external Firewire-Drive an with my an Panther-backup. After making some testing with accessing the internal HD (it worked fine), I looked into Panther's System Profiler and saw that the SMS was deactivated as expected.
I then experienced something strange - when rebooting Leopard, the sms-Status in the Profiler still was "inactive" and the PowerBook worked perfectly again. I was quite happy and made some updates. However, somehow the status was set to "active" again after some reboots, along with the malfunctions experienced before.
I wanted to find out, whether this "reactivation" had something to do with one of the updates (I brought the system up to 10.5.5 at the time) and booted the old Panther again. The sms was inactive again, again remainded inactive after reboot with Leopard.
I tried to reboot with and without power plug, I even made a PMU reset - the SMS remained inactive (which was good and made me hopeful again). However, after I switched of the Notebook and bootet again a few hours later, the sms-Setting in the Profiler was "active" and the Notebook was again not working properly.
Is there any possibility to access the sms-setting apart from "pmset" in the Terminal? Where does the system profiler derive the status from?
I want to deactivate the sms for good and at the moment this apparently works only in Panther (and I really don't want to downgrade to 10.3 again). I don't want to have it repaired since I think this would mean to replace the Logic Board which is a much too expensive investment for a 4.5-year-old Notebook.
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Jan 29, 2010
i need a software that enables me to change the song by hitting the macbook. I want it to use the inbuilt motion sensor.. I had a software for virtual desktop..which would help me to change the desktop by hitting the macbook (not a wild one)... please let me knw if there is such app..
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Mar 9, 2012
I have just installed a new hard drive in my imac intel 20" (2006) and upgraded the memory and now the hard drive does not show up in the 'select destinations' folder of the install program. I can see the hard drive in the disk utilities window however it wont let me do anything.It is a seagate 1TB SATA II drive however it is displaying it as a 7.3 TB.I have tried to erase and partition and get the same error message each time, 'Input/Output error'.
I have tried starting the thing with the install disk which is Mac OS X (Tiger?) which came with the computer
Info:
iMac
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Mar 27, 2010
I have bought a macbook pro in the late 2009.. and its sudden motion sensor is repositioned (in version 5.3) and it works in the other way around.. when i try with programs that use the sensor to make sth.. like when you move right, the things going upwards.. and when you move in the y direction things are moving in the x direction..
So has anybody have this problem?
And i have been reading articles about new version Smackbooks which works with this version but nothing was helpful so far..
I am calling those people who have the same version as me and have some proper apps to work with our version...
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Jun 12, 2012
Okay so my 2009 MacBook pro would not start up, took it to the genius bar and they said I need a new hard drive. I installed a Western Digital blue Scorpio one from Best Buy and now when I turn on the computer I just get a flashing folder with a question mark. I've tried holding down c or option when rebooting, and rebooting with and without the OSX install DVD. I'm never given any options and it either starts up to a blank screen or to the question mark.
Info:
MacBook Pro, Mac OS X (10.6)
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Mar 8, 2010
I've never had these kind of problems with Leopard on my G5, neither on Tiger. Both having installed less than 4 GB of RAM. SL seems to have changed the RAM management quite a bit. I don't know if it's the video memory that is causing SL to slow down the whole system so much that it has to page out each and every newly opened Safari tab or PS document to HDD. Here is a screen shot of the RAM usage: In other words, the page-outs are taking place even despite the supposed FREE Inactive RAM...
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Sep 8, 2009
My hard drive crashed after about a year and a half. So I bought a new one and installed it myself. When I turn on my mac now and hold C with the install disk in the drive it just spins for a while below the apple and then goes to the gray please restart your computer screen.
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Dec 10, 2014
I've recently installed a Crucial M500 512 GB SSD into my 21.5" 2011 iMac. I've done this to quite a few iMacs, and am well aware that some have a temperature sensor on the factory-installed hard drive. This one, however, did not, and now that the SSD is installed, I'm getting constantly running fans.
The fans run whether it's booted from the internal SSD, an external FireWire HD, or even if it's sitting in Target Disk Mode or on the Boot Options screen, so I feel like it's hardware-related.
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Jan 1, 2009
I recently installed a new hard drive in my MBP Intel, early 2008 edition. I followed the instructions from: [URL] a-MacBook-ProEverything works fine after I put in the new drive except for the Sims 2. Whenever I try to run it, it says the application quit unexpectedly and I can choose to Ignore, Report to Apple, or Relaunch, but no matter what I do I can't get it started. If i boot my laptop off my old hard drive and try running it, it works perfect. I've tried reinstalling the game, fixing permissions on my new hard drive, and booting the sims off my old hard drive through an external inclosure.
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Feb 26, 2009
I just installed a new hard drive successfully (I think) onto my Powerbook G4 after my original died. I installed Leopard from the legal CD - but now I can't find the Airport program. I know I have the original wireless card because my computer was running wireless on my old hard drive. Any advice out there?
I also realised that Dashboard didn't install with my OSX dvd. On the apple website that program is specified (as with Airport). Am I doing something wrong?
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Feb 10, 2012
How would I go about installing OSX on a freshly install hard drive? I have Snow leopard installation Cd's...but how can I partition a new hard drive to install the OSx without being able to get into disc utilities?I also have a time machine back up of previous hard drive.
Info:
Mac Pro (Early 2009), Mac OS X (10.7.3)
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Jul 20, 2009
I've just got a new external HD, but it's not being recognised by Mac OS X (10.5.7). I assumed it was because it was in a Windows format, so booted Windows, but it then turned out it wasn't formatted at all. What is the easiest way to make this an HFS+ (the Mac OS extended format), and how do I do it as I can't see it anywhere on the Mac (including Disk Utility)?
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Dec 25, 2009
I tried searching for info about this, but didn't come up with anything. My company just purchased me a new macbook pro, the 2.26 stock model. I recently bought a 500GB 7200rpm drive, so when the new machine arrived I just swapped out the stock drive with my 500GB. The 500GB has a relatively fresh install of Snow Leopard. Everything is running pretty well, although I feel like I'm seeing a little more sluggishness in some apps (Aperture, for one) than I expected. It's pretty impressive that an OSX boot disk can boot any mac, but I wonder if there's anything I ought to do�preference files I should delete, for example�to make sure that the OS and the new mac are in sync.
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Sep 28, 2009
I know this has been discussed before but I am completely confused. I've got some GPS maps that I want to load onto my system using the Windows side...but I want to put the maps onto my external hard drive. The hard drive has been formatted to mac
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