External WD 1 TD hard drive not detected on MBP 13.3" OS X 10.9.1

Hi all,
I have a WD 1 TB hard drive that is not detected by my MBP 13.3" which has OS X 10.9.1
The check box for external disks is flagged in Finder>preferences
I have also looked to see if the hard drive is deteced in disk utilities but it is not.
I have a lot of data stored in the external drive which I cannot afford loose.
Any help on this is highlt appreciated!!

dead SATA card extremely like. .... a VERY COMMON problem,
read here all about it:
Your dead external hard drive is likely fine! Great hope for your 'faulty' external HD

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Hard-Drive not Detected load sata drivers

Hi everyone I have a G6-1189sa notebook, I had a faulty harddrive so replaced it with the exact same drive 750GB WD, Thing is I could not save anything from the original drive ? so no recovery partitions are anything I even lost all my family photos and software.
Ok so I done a straight swap over and went ahead installing my fresh Windows 7 x64 disk, then I got an error message saying no device detected please install driver etc etc.
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Error message saying driver is not signed !!!! So after some reading on google I learned I had to disable the naitive sata option in the bios settings for the harddrive to be detected.
Thing is there is not a option for this in my bios ? unless Im missing something like an advanced bios setting.
I even went to the Intel site and tried some of there drivers but I get the same error message driver not signed.
So my question is ? how can I disable the native sata option if Its possible , If not how can I load the HP sata driver if its not signed.
Its very anyoing someone even said I have to slip the drivers in and make a new home made W7 disk myself to get my pc working again what the hell, where would I start.
Maybe I should put the laptop in the post and send it back, Ive never had so much trouble before making simple memory and harddrive exchanges.
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Hi,
Boot into the bios and be sure that the hard drive is detected.
Sata drivers are included in Windows 7.
Return the bios to its default settings and use the HP Recovery Disks. If you don't have the Recovery Disks then order them from HP. Order HP recovery Disks.
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Hard Drive Not detected after replacing DC In Board

So after more than a year of jiggling an easliy bent AC adapter in the port to get my ibook G4 to charge it just quit and would not charge. I suspected it was the slightly loose DC in port (having no idea what was behind the little hole) so I took it to the Genius Bar at my local Apple Store where they confirmed it was likely the DC in board. I was told that just sending my little old ibook away to get fixed would cause an exorbitant $330 just to ship it out, never mind any parts, etc. It was suggested I just buy a new macbook and be done with it. But we've been through a lot and I didn't want to just toss her away so I found a DC In board and replaced it myself. Parts and directions courtesy of ifixit.com
So the part is working well enough that it detects the new AC Adapter (this one new and unbent), which is great. Now I have a slightly larger problem and that is the dreaded little finder/? flashing icon that comes up when I start the computer. It won't start in safe mode. I can't find the original disks (Panther OSX) that came with it. I popped in my Tiger Install Disk and that (Thankfully) came up so I was able to open Disk Utility and lo and behold no hard drive was detected. Just the optical drive and the Tiger DVD.
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Message was edited by: alemicia

It's possible that something was disrupted during the repair. You might go back to the ifixit site and look at the instructions for replacing the hard drive. You want to try and see if somehow you disconnected it or something like that. There's a good chance that it is something simple that you can fix. Looking at the pictures might trigger a memory of maybe something taken loose and not reconnected. And try to find your original discs--you will need them.
Good luck!

External USB 2.0 Hard drive not showing up

I have a 120gb Western Digital external 2.0 USB hard drive.
When I plug the drive in (have tried both speeds of USB) nothing shows up.
The drive powers up and spins.
The first time I plugged it into the computer it ran perfectly. 5 minutes later after I restarted it would not show up.
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I have tried the disk utility function and it just hangs and never resolves.
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The USB disk icon is also lost. I had just finished re-formating the drive to the MAC format, backup up mail and all of my pictures - and 2 users of mail files. Shutdown the system to install Leopard from Tiger. My IMAC is 20 days old ... not a lot of files.
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Suggestions Greg

External hard drive not detecting

Hello,
I have installed Win 8 to my system which is having a 2.5GHz processor. That's fine.
But When I am connecting, an External SATA I hard drive through enclosure, Its not detecting.
But It is able to detect all other external hard drives.
please let me no what to do.
Thanks in advance,
Giri.

Hi Giri,
What's the size of your External HDD?
Please know that if the disk format is MBR, system can only recognize 2 TB of it. Please understand that the MBR Partitions can define a disk drive capacity up to 2.2TB. If we need to use more capacity of the HDD, we need to convert it to GPT format.
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TechNet Community Support

External hard drive - not detected by PC

Hello,
I recently got a seagate hard drive and mounted it on a case to use as an external hard drive for my pbook 12inch. I went through the formatting on my PB, and everything works fine with it on the PB.
However, when I try to connect it to my PC, the hard drive doesn't show being mounted. My computer detects that a new hardware is connected, but I can't find the drives in the My Computer folder.
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If you've formatted it through the PB then it will be in HFS+ - don't Windows use FAT32?

MacBook Pro 13" 5.5 (mid 2009) new hard drive not detected

Hi,
New here, tried searching for the answer here but could not find any.
I got a few hard drive error on my old macbook black 250gb drive that I put in this MacBook pro.
The system became really slow and kept hanging (beachball).
So I went out and bought a new 500gb WD Scorpio Blue 5400rpm.
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When I put it in an external USB cradle there is no problem.
Also found out that way that the old hdd works fine when booted from the USB cradle.
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Allart

Could also be a bad cable...make an appointment at an Apple store. If the cable is bad, should cost less than $20 to fix.

Hard Drive not detected

Hello all,
I am working on a friend's 15 inch iMac G5 and have run across what I'm hoping is not a major issue.
The iMac was not booting and displayed a gray screen, I zapped PRAM, tried to boot from CD, and tried Target disk mode. Once I was finally able to boot from the CD the installer will not detect the iMac's internal HD. I also booted from my PowerBook which could not detect the HD. The Apple System Profiler has the same HD blindness.
Is there any other explanation besides the HD being dead? This computer is only a year old, how could the HD die so fast?
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My iMac G5 20" is about 1.5 years old and is giving the same problem as well. It just die on me last weekend. As most of you explained earilier, it's unable to detected SATA drive. I replaced it with new SATA drive, and it's still unable to detected it. The fan also crank at high speed as well.
Doing that should rule out SATA hard drive issue.
It this going to be issue regarding to Apple products?
I'm wondering if it's power supply issue. I know from past experience that with PC, that there's been
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Hard drives not detected after bios update

Hello
K7T Turbo 2 kt133a
I bought a new chip a while back and therefore updated my bios.
My system has worked on and off for a while now, however i have not been able to get it to boot for 2 days.
I have tried bios version 3.4, 3.5, and 3.6, the same thing in all cases.
So i decided that the problem was not the bios, but my IDE cable, so i installed another one, still no had drives!!
even when my first hard drive is recognized and the system boots, the secon hard drive isn never detected.
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Dude I think i migh just have to order a dell.......
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Hi
jumpers should be right
the top HD (on the end of the cable) is l:::
and the bottom (slave i assume) is ::l:
My PSU details are as follows (dont know much about power supplys)
it is called a switching power supply (likely not a very good one)
Max output is 300W
115V / 7A / 60hz
+3.3 +5 +12 -12 -5 +5sb Blk Grn Gry
14A 30A 10A 0.5A 0.5A 1.5A Com p-on PG
Hope this heps
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USB hard drive not detected on reboot

I am running Windows 7 Ulitmate 64-bit on my 2011 15" Macbook Pro. I have a USB Hard Drive (WD My Passport SE - USB 3.0/2.0 - 1 TB).
The hard drive is formatted for HFS+ and I am running Mac Drive 8 to detect it in Windows.
For some reason when I reboot (in Windows), the hard drive won't be there until I unplug it and plug it back in.
This is really annoying! Can anybody help me? I'm pretty good with things like this but I can't think of any reason this shouldn't be working right.
HELP =T
Message was edited by: PTHEOFYL
Message was edited by: PTHEOFYL

I am having the exact same problem. WD 1TB Passport. USB 3.0 drive. Running on Windows 7 Pro 64 via Bootcamp.
My 1TB Passport is formatted with FAT32 and works with Windows and Mac OS.
I was getting the same problem when I was running Windows XP Pro on the same MacBook Pro. I was hoping the upgrade to Windows 7 would remidy the issue but it did not.
The drive light is on in a steady state when I boot and I have the same symptoms as reported by everyone else above.
In my research, I am leaning towards thinking that it is a power issue related to the cable used to connect the USB 3.0 Drive or something to do with the USB driver for Bootcamp, but researching the WD site suggests it's a power issue, not a faulty or failing drive.
I have a 500GB WD Passport USB 2.0 also attached to my computer, also running FAT32 and it starts up no problem. It's just the USB 3.0 drive that is having this issue.
Also worth noting; the drive is detected properly when I boot in Mac OS X. It's only the Windows side I have to unplug and plug back in to access the drive.

Seagate Hard Drives not detected by the Windows 7 installer

I've spent hours on this trying every conceivable reason, so I apologize in advance for the length on this post.
I connected a Seagate 320GB 7200.10 hard drive to a P35 chipset system and attempted to install Windows 7 RTM onto it. The installer got to the part of detecting hard drives, but could not detect this drive. Native SATA mode was enabled, and AHCI was enabled.
I disabled Native SATA mode, then after that failed I also tried disabling AHCI by setting the controller to IDE mode. Still, the Windows 7 installer refused to detect the drive.
I replaced both the SATA & power cables, verified the drives are detected by the AHCI firmware and the BIOS, and I even tried different motherboard SATA ports to no effect. I took a second , identical Seagate 320GB SATA hard drive, this time pre-formatted it inside Windows 7 RC using NTFS defaults, and again (with and without AHCI and Native SATA mode) Windows 7 will not see this hard drive either!
I even downloaded the AHCI preinstall drivers and loaded these using a flash drive. When I did Windows 7 would autodetect the ICH9 driver and I would click Next. Windows 7 would suddenly see the drive, but all options to format or create a partition are grayed out. Clicking the more info button gives me this error message:
"Windows cannot be installed to this disk. This computer hardware may not support booting to this disk. Ensure that the disk's controller is enabled in the computer's BIOS menu."
I used the AHCI preinstall drivers specific for the motherboard (Vista 64) and I also tried the AHCI preinstall drivers from Intel for Windows 7 RC 64. As of this writing Intel has not released official Windows 7 RTM Intel Matrix Storage Manager drivers.
In frustration I installed a SSD (with AHCI and Native SATA mode enabled) and suddenly Windows 7 detects the SSD without needing to load any driver (as would be expected, since Vista and 7 include Intel Storage Manager drivers by default already). I installed Windows 7 RTM 64bit onto the SSD without issue.
15 minutes later I was at the Windows 7 desktop, and Windows 7 was showing the Seagate 320GB hard drive under "My Computer" as normal. I could even use the Seagate hard drive as normal as if nothing was wrong. For kicks I launched the Windows 7 installer inside Windows 7, but as you can see below it still refused to see the drive, despite the drive being shown under My Computer:
(Since I can't use thumbnails, here's the direct link: http://i111.photobucket.com/albums/n129/Chanur64/Box/Howpossible.jpg )
Also I should note I previously had Windows 7 Beta installed on an IDE drive in this exact system, and had no problems with it. Windows 7 RTM would allow me to install to an IDE drive and allowed me to install to an SSD, but it cannot see and cannot install onto both Seagate 320GB hard drives. These Seagates are known good drives previously part of a RAID 5 array.
If anyone knows what is going on or has some ideas I've not tried I would love to hear from you and get this figured out. Suffice to say this is not a promising start for Windows 7.
Intel Q6600
Gigabyte GA-EP35-DS4 (ICH9R southbridge)
4GB DDR2-800
2x Seagate 320GB SATA 7200.10
Intel X25-M 80GB
8800GTS 320mb
PC Power & Cooling 750w PSU

I just had to solve the same issue with a Seagate Momentus Thin hard drive (
http://www.seagate.com/www/en-us/products/laptops/slim-laptop-hard-drives/)
Tried several BIOS configuration, AHCI drivers, etc and Windows 7 32bits couldn't detect the drive.
My solution was to boot with a USB pendrive with HirenCD tools (http://www.hiren.info/) and use a partition manager to erase disk contents, create and format a partition.
Windows 7 detected the hard drive for the first time and now is installing, so.. crossing fingers.
Thanks,
Diego
Diego,
Thanks for the information and the link to Hiren.info! I'm creating my bootable flash drive now. I'll report back if I get this to work.
I had this same issue on a Seagate Momentus 7200.2 "laptop" hard drive. I say "lap top" in quotes because it's actually in a desktop (HP Compaq Ultra-slim dc7800). I believe it was an upgrade, so it took me a while to figure out what I was dealing
with until I finally took out the harddrive and checked what company made it!
Thanks everyone!

Please help! Macbook internal hard drive not detectable.

Dear all,
Hope this post finds you well.
I have a very old Macbook and one day the hard drive started making skipping sounds and the system froze. Upon restarting, the machine would not boot and displayed either a white screen or a flashing question mark folder. I used a USB to boot and tried to use disk utility to repair the hard drive. However, the hard drive is not visible in the Finder or Disk Utility. I have also tried inserting the hard drive into another Macbook while booting with a USB, but the result was the same: No HD in Finder or Disk Utility.
Is it possible to recover the files from the HD? Any help would be much appreciated.
Kind regards
Xierong

Well that hard drive is most likely toast. You'd need to place the hard drive in an external enclosure or use a USB "dongle" like here:
http://www.amazon.com/USB-SATA-5-25-Cable-Adapter/dp/B000YJBL78
Plug that into a working MacBook (You'll have to get a new hard drove or use that other one. Run Data Rescue II, or III and there are some others reviewed here::
http://data-recovery-software-review.toptenreviews.com/mac-recovery-software/dat a-rescue-review.html
It used to be you could run II for free to see what it found. Mt only experience is with II. Usually if I can get the drive to spin up I can recover most things. There was one time I jiggled the drive and got it to spin up and had to hold it very still until it finished recovering all my files!

Hard Drive not detected during installation

Hello everyone,
I am brand new to this Mac Forum, and I am hoping you can assist a colleague of mine who has a Hardware issue with his Mac.
It is a Power Mac G4 and one day he started having issues booting into the MacOS, but after several re-boots it would be okay, and then it didn't want to know at all, so he asked me to take a look at it.
My knowledge of Mac's is fairly basic, but I am familiarish with the Hardware, so I tried installing the Drive on another I.D.E. Cable and channel, re-seated the Memory, but it made no difference. So I assumed it was a dead Hard Drive?
However, he purchased a 120Gb WD (previous one being an 80Gb I.B.M.Deskstar), and I went around to his office to install it - same problem?!
Basically the installation gets as far as agreeing to the Licence Agreement, then we get the dialogue box where you select the destination for the Hard Drive, but there's nothing in there.
My guess is a faulty Motherboard, yet the CD Drive is still detected, obviously, for the boot to take place from the installation disk!?
Is there any BIOS I can access to make sure the Mac is detecting the Hard Drive properly?
Please help if you can, it would be much appreciated.
Cheers,
Nathan.

Hello again,
Thanks very much for your replies.
My colleague would be very reluctant to purchase a Controller Card for his Mac, particularly whilst I still have strong suspicious about the Motherboard.
I did follow the link in Rodney Cullings reply, but that isn't quite the issue.
It is a brand new Hard Drive, purchased from Jigsaw, and therefore I would assume unformattted; however we cannot use the Disk Utility to format it because there is no Hard Drive detected in the "Select a destination drive" in the first place!
Hence my question about the B.I.O.S., because in a situation like this on a P.C., the first thing I'd do (if Windows hadn't detected the Hard Drive) is check the B.I.O.S., because if it isn't in there, it's either Jumpers - which I've already tried - or a dead Hard Drive.
I have installed the newer drive in a P.C., and the B.I.O.S. did actually detect it.
So, any other ideas please people?
Many thanks for those supplied so far.
Nathan.
P.S. Am I posting this to the correct Forum?

Hard Drive not detected through SATA, but it is through USB.

This week my hard drive seemed to crash, I got the file with the question mark and it wouldn't show up in disk utility. I went out and bought a new hard drive, popped it in and it too doesn't show up. I put my old hard drive in an enclosure and plugged it in through USB, and my macbook starts up just fine that way. What could be the problem?

dcbaros wrote:
Well I know the drive is fine because I can run it from the usb enclosure, but is the sata cable going bad a common problem?
Not common but I've seen it happen more than once so I wouldn't be surprised if that is what's going on with your computer.

External USB 3.0 Hard Drive not recognized

Please help!!!!
I had been using my hard drive for a while and everything was fine, but when I went to plug it in today nothing happened. The blue light still comes on, but there are no sounds. It does not show up in windows explorer (8). It does, however, show up under "remove hardware safely," "devices and printers" and, as USB Mass Storage Device under USB Controllers in Device Manger. It does NOT show up in disk management.
I have tried every way of unplugging and re-plugging the USB cable and power cord (along with restarting/shutting down the computer). I have tried using different USB ports. I have tried using a different USB cable. I have tried unistalling the USB Controller in Device Manager and re-installing it (and one time I tried uninstalling it, then unplugging the power, then plugging power).
Now, I have had it plugged into my computer for about an hour, and when I open Devices and Printers, I can see it there, but it keeps disappearing and re-appearing.... this is where I am at... I am at a loss of what else to try.
Any help would be GREATLY appreciated!!!
Thanks!!!!!

Have you tried it with another computer? Does that computer see it?
- Peter

External WD 1 TD hard drive not detected on MBP 13.3" OS X 10.9.1

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