Harddrives not recognized

I have a MacBook Pro 13" late 2009, running Snow Leopard. About 10 months after the purchase, I had problems. Took it in and they said the harddrive was bad. They replaced it. I just started having the same symptoms of harddrive failure again...spinning circle, system freeze. So I purchase a new harddrive, formatted it with the disk utility, restored my time machine backup. It completed the restore and restarted. After restart it didn't work. I tried rebooting several times as it continued to tell me to do, but nothing happened. I started to run OS from disc again to reformat the new disk, but the disk utility didn't recognize the new harddrive. I put the old harddrive back in as well, and it doesn't recognize the old harddrive. I have reset pram and smc and have run hardware tester, but nothing helps. Any solutions??? Running with out the OS from DVD only shows the flashing question mark/folder.

Internal or external?
If internal, are the jumpers set correctly for master/slave?
Have you double checked all the connectors?
What kind of drives? ATA? SATA working through a SATA card? If SATA do they need to be jumpered to work with an older interface? Newer SATA drives need to be slowed to older speeds by using jumpers - http://www.wdc.com/wdproducts/library/other/2579-001037.pdf

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New harddrive not recognized after boot

Hi,
I just got a new (never been used) Western Digital Green 4TB hard drive today, but it doesn't seem to be recognized by the OS after booting. In the BIOS it is recognized, but as having ~2TB of storage instead of 4TB. During booting I get this message a few times: "ata9: softreset failed (device not ready)". This causes booting to take around 30 seconds longer than usual and the drive makes some strange beeping noises while this is happening. Eventually the message stops printing, and the beeping stops, and the OS finishes booting, but the drive is not recognized at all.
Did I get sent a defective drive?
My motherboard is a z77 Sabertooth that I purchased in the summer of 2012. Is there a certain SATA port I need to use for a drive this big? Could it be that the drive is not getting enough power to spin up? I noticed that the drive has some extra pins that none of my other hard drives have, like in the left side of this image http://techreport.com/r.x/wd-red-4tb/straight.jpg. Am I supposed to plug anything into those?
Last edited by tylerpnn (2015-03-17 15:58:31)

The pins are for jumpers.
Try different SATA cables, SATA ports, and power connectors. If behaviour doesn't change you probably have a bad drive.

Time Machine Harddrive not recognized from Airport Extreme anymore

I've recently updated my Mac Book Pro (Mid 2010m 8GB) to OS X Mountain Lion. Already before I used an external Harddrive attached to Airport Extreme (Airport Utility 7.6.1) for Time Machine Backups. The Backups worked well, even after Migration to OS X Mountain Lion (10.8).
The Haddisk had always been visible from the finder and even an jailbreaked Apple TV. But this changed just yesterday with Finder and Airport Utility just not able to recognize the Harddisc anymore. I tried several things including:
- unplug the Airport Extreme for 1 hour from AC
- Reset/Restart Airport Extreme via Airport Utility App
- Reset Airport Extreme to factory settings and starting over with configuring the network again
- Turn off/on the respective Harddisk
Neither action was successful so far - while the drive can be accessed via direct USB connection still. The respective drive is Mac formatted (journaled) and - as already mentioned - had been working in this setup all the time (1 year at least).
Thank you very much for any hint/tip helping me to solve the problem!
Robert

Almigurt wrote:
Hi Pondini,
I've seen this before - but TM used to work for me this way very well.
That's kinda the point -- sometimes it works, sometimes it doesn't.
However with my question it is not about Time Machine - it is about why my Harddisc is not anymore recognized by my Airport Extreme base station. It had been working since more than one year now - and then all of a sudden Airport Extreme stopped to show me the drive.
Try repairing it, per #A5 in Time Machine - Troubleshooting. Note that you have to repair both the disk and the sparse bundle the backups are in, separately.

External Harddrive not recognized

I recently bought a generic external 250GB HD. I plugged it in and was able to download all of my music and video files. Randomly I received an error code which stated there was a device removal error. I tried both USB ports and have restarted the machine several times and tried the ports again. I then plugged in the HD to a PC and it recognized and all my files appeared. I would prefer not to buy DiskWarrior if anyone has any other suggestions??

I don't know what a generic hard drive is as they are all made by the same set of manufacturers (Hitachi, Western Digital etc.)
What do you mean by "downloaded all of my music and video files."? Do you mean you copied them to your external drive from your internal drive or do you mean that you downloaded them off the internet onto your external drive?
Did you try to repair the drive with Disk Utilities on your Mac?
If you unplug the USB or firewire cable before ejecting or unmounting a volume (hard drive) you will get an error message stating so. You need to eject or unmount before unplugging so the Mac can properly close all open files in the drive.

HT2494 external harddrive not recognized

I'm running OS 10.6.8 with a maxtor one touch 4 ext harddrive via USB. I have MacDrive 7 on my PC & I use this to transfer files back & forth from PC to Mac. This morning, I unhooked the drive from the Mac and forgot to drag it to the trash can on the desktop first. It worked fine when I hooked it up to the PC and I moved the files onto the drive. But now, the Mac won't recognize the maxtor, even after I reboot; even after I shut down and unplug everything and walk away for 10 minutes. What do I do?

Anyone?

160GB Harddrive not recognized.

I just got my computer up and running. I have a 160GB harddrive but it only shows 123GB. I installed windows update pagkage 1 and then 2, and it still shows 120GB. Whats wrong?

After you apply the "enablebiglba" registry hack" (Maxtor has a file that will do this for you), your machine will see the full disk size with the additional space shown as unpartitioned. You can then make an additional partition to make this space available for use.
Robert

Cannot install Windows to internal HDD on dm4t laptop (HDD is working, but not recognized in BIOS)

Hi All,
I have an issue with the internal SATA HDD in my Pavilion dm4t laptop (PR #: XQ1313AAR). The drive is working, when connecting via external USB enclosure is recognized by the PC, can read/write data, format partitions etc… When plugged in as internal HDD of the laptop, BIOS does not recognize it. When booting from Windows Installation Disk, the drive (and its partitions) are recognized, but I get the following message when trying to select a partition to proceed with Windows install:
Windows cannot be installed to this disk. This computer’s hardware may not support booting to this disk. Ensure that the disk’s controller is enabled in the computer’s BIOS menu.
Used external USB enclosure again, connected to a working PC and using TestDisk, I deleted the partition table (by zero writing it several times), then created a new MBR. When connecting back as internal drive, it is now recognized by BIOS and in the Windows installation screen, I can actually select a partition on the drive to install Windows on; the installation actually runs, but as soon as I get to the point of having to restart the PC during the installation process, upon restart the drive is not recognized anymore…
When I remove it, and repeat the same steps with TestDisk, it once again works, can start Windows installation, but it fails upon restart.
I have already read numerous forums on the topic, have tried various drive utilities. I also saw in one of the forums a suggestion to enable AHCI for the SATA controller, but the laptop BIOS is extremely limited and does not have that option.
Please help!!! Have been without a working laptop for several weeks and is driving me crazy. Saving any data on the drive is not needed – I have recovered all data from it that I need. So my only objective is to restore the harddrive to fully working state and be able to install OS on it (Windows 7, 64-bit)! Thanks in advance for any help!

@minxinglee
even i am getting same errors I hope you found out solution by now ! plz... can u share it ! i need it urgently
Thanks in advance

External hard drive not recognized on new macbook

we have an external harddrive that we used as the time machine for our previous imac. we just bought a macbook pro, and the harddrive is not recognized and does not show up on the sidebar. it is however shows up on disk utility but i dont know what to do with it/how to get files from my old time machine. please help! thanks

The hard drive will not show up on the sidebar or desktop unless Finder preferences are set to do that:
In Finder's General preference section, make sure "External disks" is checked in the list of things to show on the desktop if you want to see them there.
Likewise, in Finder's Sidebar preference section, make sure "External disks" is checked in the "DEVICES" section to see them automatically appear on the sidebar.
But you don't need to do either for the MBP to recognize the drive, or to get files from its Time Machine backup set. To do that, you should use the Time Machine "Star Wars" interface. Pondini's FAQ's (already mentioned) tell you how to do that. Tip 17 is particularly relevant.

External Firewire Hard Drive is not recognized

Hello
I have a LaCie External Firewire Hard Drive (like this one (http://www.lacie.com/us/support/support_manifest.htm?id=10105). Since it uses a fireware 400 cable, I bought a FireWire 800-400 adapter, the one from moshi that is sold in the mac store.
I have tried connecting it to both ports in the external harddrive, connecting and disconnecting and still is not recognized. Any idea and suggestions?
I already tried in another computer, with windows xp, and the hard drive works.
Thanks.

Hi, oops, I have more than 1 mac & I apologize for assuming you are a multiple mac owner..
You could visit your local Apple Store or Local Apple Approved Service Agent.
You could try connecting via USB if your external HD has the capability, it could also be a bad cable.
You can check the Finder -> Preferences & the Show These Items..
You can reboot with the Ext HD connected & see if it shows up on your d/top...L

Movie files are not recognized

MacBook is from late 2007 OS X 10.5.8. Last December, I had to change harddrive and after the new harddrive, movies (from DVD´s or attachment with .mvw format) are not recognized. Quick Time Player and DVD Player are installed.
YouTube, streaming movies, news clips etc are OK
Any hints?

cceder,
QuickTime cannot handle all kinds of video unless you install extra tools, such as Perian:
http://perian.org/
Alternatively, you can try VLC media player, which supports most video and audio formats.
~Lyssa

Really frustrating - Macbook not recognizing built-in ethernet cable

I am a college student who purchased the macbook one year ago
My macbook is not recognizing the ethernet cable plugged into it.
I thought it was the ethernet cable itself but I tested my roommate's cable and it wasn't also recognized (his computer's internet works fine)
This is frustrating because I am relying on the college wireless and the signal is flaky at best from my dorm
I am guessing that either some harddrive or software is messed up
Anyone can help me?
Do I have to go to the apple store? My warranty is expired and a very busy semester is about to start so I don't want to send it in for a long time

Have you used the MacBook in multiple locations in the dorm (on the same subnet)? If you connect through a mini-hub or -switch (rather than plugging directly into the Ethernet port provided by the school), the hub or switch may be holding on to the MacBook's MAC address even when the MacBook is disconnected. When you then plug in in another room, the school's networking equipment may think that the same MAC address (the same computer) is connected on two ports at once -- which just doesn't work. You may get an IP address, but be unable to do anything; or you may get a 169.x.x.x IP address. The school's networking folks can look at the network infrastructure equipment -- the big switches in the wiring closets -- to see if the MAC address is registered on multiple ports.
The best solution is to replace those bad min-hubs or mini-switches -- they shouldn't hang onto MAC addresses for computer that are no longer connected. But if that's not an option (or just to test the theory), unplug (power off) every hub or switch you have plugged into, and see if you can get online after powering them up again. You would have to power cycle the hub or switch every time you use one.
Another test is to try to connect somewhere else on campus, on a different subnet. If it also doesn't work on another subnet, the solution described above does not apply. There are other potential culprits, such as the subnet running out of IP addresses, rogue routers installed by other students, and needing to register for the school's network, misconfigured network settings, and of course, defective hardware. You might try starting up from the MacOS Installer disc and running the Network Utility to rule out misconfigured network settings.

My Toshiba Satellite p775-s7320 not recognizing the CD/DVD player (ODD)

Hello all,
I am having the problem as listed in the title in that my toshiba satellite p775-s7320 is not recognizing the built-in CD/DVD player anymore. I have the latest Bios upgrade from Toshiba. The last time this worked was earlier this year during the summer. Nothing abnormal or apparent has happened to the laptop to change anything internally, except the Bios upgrades.
Interestingly enough, there is power to the CD/DVD mechanism and the open/close features work perfectly, but the Bios can't "see" the ODD. So because the Bios doesn't see it as being attached, and the System doesn't "see" because the Bios doesn't, it doesn't matter that the Open/Close function works, because putting a good CD in with data on it is of no value.
I was considering trying to revert the Bios to an earlier one, but simply trying to load the older Bios through the Windows Bios software is a No-Go because the software won't allow me to go to an earlier Bios flash.
I'm at the end of the line with common options, other than trying to switch out the Cd/DVD for a brand new one. Something I don't want to do if I can avoid it, but I would as a last resort. As well, loading a fresh image is out of the question as I have too much accumulated software on my harddrive and don't really think the problems stims from that.
Otherwise, any other solutions may be worthwhile to try. I would really like to flash the Bios to an earlier time when the machine worked well, but I dont know how.
Thanks for taking a look. BTW, I have removed and replaced the current CD/DVD several times with no change in recognition by the Bios.
houdinihar

any other solutions may be worthwhile to try
Try the Microsoft fix-it : http://support.microsoft.com/mats/cd_dvd_drive_problems It is used to fix problems with CD or DVD drives. (Note This Fix it solution does not support Windows 8.1.)
For more things to try see this Microsoft support page: http://support.microsoft.com/kb/314060/en-us It gives possible reasons for your problem and several methods to fix the issue.
Your support page is here : http://support.toshiba.com/support/modelHome?freeText=3132880
S70-ABT2N22 Windows 7 Pro & 8.1Pro, C55-A5180 Windows 8.1****Click on White “Kudos” STAR to say thanks!****

ITunes not recognizing iPod and iPod tunes vanishing

I have had this happen on three different occasions now. I plug my iPod in the USB port to update my podcasts and iTunes says it does not recognize "iPodName", please run iPod updater to restore. I then look at my iPod and find that all my music and videos are gone! Each time this has happened I have had to restore my iPod then reload all my content (a painfully long experience) and I would like to find out why this is happening and if there is anything I can do to prevent it from recurring. Also, is there any way to recover the content on my iPod so that I do not have to re-transfer all the content each time this occurs?
I have also note some quirks in iTunes where some (not all) of my podcasts are not recognized when trying to update them from the Internet. It is not always the same podcast.
I am concerned that I may have a corruption in some of the iTunes configuration files and am considering a daily backup up of these files as preventive maintenance. Are they stored in a subdirectory of the iTunes folder or the program directory?
Thanks in advance,
iPod 5G 60 Windows XP Pro

Well before you install that new Harddrive, or if your system is acting "Funky" do a backup of all your music and iTunes ASAP. go to here to follow instruction on backing up in iTunes http://docs.info.apple.com/article.html?artnum=302392
If all your music is in the "My Music" folder you can just back up that whole folder to CD. this will make a backup of all your music AND a backup of the iTunes Library file so you will not loose any playlist you have created, rating, playcounts and the like. to do that put a black CD in, goto "My Music" then at the top select Edit>Copy to folder. in the window that appears pick your CD drive, whatever letter it is (Usually D drive) and hit OK. your system may bog down for abit but once windows as made a CD image it will burn it to the CD and there you have it

USB Device for IPOD not recognized by Windows, whether ipod connected or no

During the past few days I have received a pop up error message from (I would think) Windows that the USB device is not recognized. I have the USB plug for the ipod connected (as always)but the ipod isn't even connected. It keeps popping up like every few seconds that the usb device is not recognized.
When I attach the ipod itself, the ipod is recognizing it because it powers up. But, it took 10 times just to get the ipod to recognize through itunes. It updated, then immediately upon completion, windows again starting giving repeated error messages that the usb device wasn't recognized.
I have downloaded the newest itunes but I had it on my system for 4 days with no problems whatsoever. I don't think that's it. No other system changes.
I've deleted my temp files and cache. Also did a "disk clean up" and "defrag." It's still doing it.
Any suggestions?

I'm having the same problem. Ever since I upgraded to version 7, iTunes & my PC no longer recognise my iPod, and it therefore won't sync.
It's not the USB port (other devices work in it), I rebooted my iPod and re-installed iTunes, I've tried stopping and starting the iPod Service (but can't see my iPod in My Computer). When I run the Diagnostics it says iPod connection failed. I've even bought a new USB cable but that doesn't work either.
This is driving me up the wall. Is there a glitch with iTunes 7?
Can anyone help me out?? Thanks
Windows XP

Aio Remote: PDFs not recognized by Google drive.

Aio Remote on iPad Air2 iOS 8.1.1 - I created a PDF on my iPad from my HP Envy 7640 using Aio remote app. In the files/document section it's there (3 pages) as a PDF. But when I upload a copy from Aio Remote to Google Drive it's not recognized by Google Drive as a PDF even though it has a PDF extention. I have other PDF files stored in Google drive that are perfectly fine. It must be something in your app that is the problem.

More info: if I send it from Aio remote as an email attachment to myself I get a PDF that I can upload to Google drive and Google drive reconizes it as a PDF. again proving it is Aio remote that is doing some thing wrong when uploading to Google Drive.

Harddrives not recognized

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