Seagate hard drive not recognized

I recently bought a Seagate 500GB GoFlex Ultra-Portable External Hard Drive for Mac from Amazon and it worked fine the first time. I added folders of videos and photos to it, unplugged it properly, and let it sit a few days. Now I've plugged it in again to retrieve content from it, and it lights up and sounds like it's working, but doesn't appear on my desktop. I opened my Finder and it was there on the left, but in grey and I wasn't allowed to click on it. The drive does show up in disk utility, but I want to figure out a way to get it to show on my desktop for easier access. Any help?

My guess is that it is a Seagate 7200.9 with SSC on. If that is the case you will need a PC and this tool:
http://www.seagate.com/support/kb/disc/faq/ssc.html

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Hi,
Whether the hard disk is recognized in BIOS?
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Advanced Format Hard Drive not recognized by HP DV6000 Controller

Hello,
I have an HP DV 6000 laptop (6276 I think, I'm at work can't check) that came preinstalled with a Western Digital 160gb 1.5gb/s 5400 RPM drive (Vista) that failed a couple of weeks ago. So i bought a Western Digital 750 GB WD Black SATA III 7200 RPM 16 MB drive to replace it. I read about people having some problems with Advanced Drive Format hard drives not being recognized by their controller, but also read that depending on the controller and specific Dv6000 model laptop they had-one wouldn't run into problems.
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Hi @jasmine00
Welcome to the HP Support Forums.
I certainly understand your issue with the drive upgrade. Unfortunately it is a bit of the nature of notebooks, the sacrifice of a large amount of upgradeability, in exchange for compactness and portability. Whenever a new technology comes out, older notebooks are never really going to be easy to upgrade, it at all. Normally the unit as a whole is tested with a set list of hardware, and only those items are supported.
That being said there is this document that could be helpful with your problem.
Preparing Advanced Format hard drives for Microsoft Windows installations on HP Business Notebook PC...
And for your reference:
HP Pavilion dv6000 Notebook PC Maintenance and Service Guide
Malygris1
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
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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!
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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
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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!
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Seagate 300gig sata hard drive not recognized

I'm trying to install a seagate 300gb sata hard drive in my dual 2.0 g5.
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My guess is that it is a Seagate 7200.9 with SSC on. If that is the case you will need a PC and this tool:
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Your response is not 100% clear to me.
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I removed and reinserted the factory installed Satellite L505D-LS5007 laptop hard drive and memory modules just as practice for installing a hard drive upgrade and an 8GB memory upgrade. The problem is obviously with the memory and not with the hard drive.
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Solved!
Go to Solution.

When troubleshooting, I always change one variable at a time. I would hate to miss a solution by being in a hurry. In this case, you may have damaged either the RAM or the RAM slot. I would stick with the Toshiba specifications for the RAM, making sure it is the correct size, speed and type recommended. I also recommend that when you replace the RAM that both modules be from the same manufacturer, size, and specification. Try one RAM module in one slot and then the other. And then try both RAM modules in both slots. After the testing you should be able to figure if this is a RAM problem or a RAM slot problem.
In the case of hard drives, the real test is whether or not the Bios sees the hard drive. If the Bios doesn't see the hard drive, it's not going to work. The Bios should see the hard drive whether or not the hard drive is partitioned, formatted or has data on it. My experience has been that many Toshiba laptops will work fine with larger capacity hard drives provided they are the same speed in RPMs, have the same interfacing connection and physically the same size.
Again, prior to doing any work on your computer, make sure that both the AC power has been disconnected and the battery has been removed. Be careful out there. A blown repair job by a non-Toshiba tech is NOT covered under warranty.

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Shouldn't the disk preparation and data be consistent across these different interfaces? I would think so. My biggest concern is that if I had a failure in the Thunderbolt setup (assuming the drive itself does not fail), then I can't access my data. This is not a very comfortable situation.
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Thanks for that, I recently ran into the same problem. I even chatted with Seagate tech support and they didn't know the answer.
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In anycase, my old MacBook Pro won't see the drive when I use the USB3 adaptor. I get the same exact error message as you did. I can't really test it on Thunderbolt since I don't have one. I'm going to go install the Thunderbolt drivers now and hopefully, it will recognize the drive afterwards. I'll let you know what happens.
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Are other USB devices working normally, Eric?
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Message was edited by: Rod Hagen

MBP Late-2011 hard drive not recognized

Okay, so last November 2012, not even a year after I bought my MBP, it just froze and wouldn't respond to anything. All it showed was the rainbow loading circle and the computer crashed. I brought it to the Apple store and the person behind the Genius bar said that it was a hard drive problem and he replaced it. However, ever since then, I noticed that my mac has been running very slow and programs would take a lot longer to load.
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The good news is that it is not the logic board, other wise the MBP would not function at all. The symptoms that you describe are a strong indication that the internal HDD connection is faulty.
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(See below for information)
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Unplugging worked!!!
I have no idea what PRAM is but someone said that unplugging your computer resets it so, I thought I'd give unplugging a shot. So, I shut down my computer and unplugged it. I also unplugged the power on the HD. (because I wasn't sure which one they were talking about.)
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Seagate hard drive not recognized

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