I have 2 mac computers .Laptop and desktop. I have an external hd that can not be detected . what is wrong ?
598131
Is the drive USB or firewire? You may have a bad port on the desktop. To check this:\ngo to the apple menu in the top left corner\nchoose about this mac. when the window pops up, select more info...\nthis opens System profiler\nclick on usb and firewire to see if they register. If it says nothing, there's your problem.\n\nIf all ports are working, try this:\ngo to applications - utilities and open disk utility\nplug in your drive and see if it appears\n\nif it still doesn't appear, choose mount drive from the menus at the top while in disk utilityq
638929
Just plug in your external hard drive, and start My Computer.  If the hard drive is properly formatted and partitioned, then it should show the drive with a new letter on the same place you will see your "C" drive.\n\nIf it does not show up then you will have to initialise the disk and format the disk for you to begin using it.\n\nAssuming everything is fine, simply drag and drop files into the new drive.  It maybe sensible to create folder and organise your data.\n\nSimply, right click on one of the files/mp3 etc and choose Open or to be more specific choose Open with and select the appropriate program.\n\nAlso before powering down your external hard drive or your computer, remember to disconnect the external drive safely on Windows.  On the System Tray, where your time shows on the bottom right hand corner.  There is an icon if you hover the mouse over it says "Remove Safely" or "Remove Hardware Safely".  Click on this and it will display the devices that are currntly connected.  Click on the entry related to the external hard drive.  If you do not do this, the hard drive can get corrupted.\n\nI lost about 40Gb worth of data by not doing this in a moment of madness.\n\nHope this is helpful.
855771
If it's a firewire external drive AND the Mac and PC are part of a network then read Sharing a FireWire drive over a network.\nhttp://www.thexlab.com/faqs/sharefwdrive.html
41066
I don't think you lose anything, other than it taking a little of your time.  I'd recommend going with a reputable case vendor rather than buying a cheap one.  I've been very happy with the external drives I've got from Other World Computing (link below) and the cases they sell are the same ones they use on their external drives.  Despite their name, the drives work fine on PCs as well as Macs - - in fact, I have one of their drives on both a PC and a Mac at the moment.
816677
use cable select on both of them and see if it works and if it wont recognize the new 1 then u have to format it and partition it that is probably y it wont recognize it
648157
yes but it will only work it if it is in the registry of the system you are using and it treats the external as the master . go to theoldgeek.com for more on that
466239
As long as the partition table is intact you should be able to remove the hard disk, attach it to another desktop mac and copy yur files to it.  You could also remove the disk and place it in a firewire enclosure and do the same.  I recommend  strongly not to back up to a windows machine, but if you do, make sure it is saved on an ntfs partition or your files will be damaged.
591535
External hard drives typically connect via USB or Firewire, so just make sure your computer has the appropriate port to connect through.  There is no software needed (unless it's some crazy cheap poor excuse for a hard drive); They'll usually just show up as a new drive letter in your Control Panel as soon as you plug it in.  The data transfer rate and speed are irrelevant as far as compatibility goes, but obviously the faster it is, the more convenient it is for you (and probably the higher the price will be).
864943
you need a windows disc. something has happened to you system files on the HD, it might jsut be a cable came out though, have a check when the computer is turned off.
612212
If cable was an issue it would not have worked at all. Do this to get a resolution. I hope you are using a Seagate HDD (cuz its widely used but my steps have nothing to do with a brand. It,s in general)\n\nTurn off your PC. Unplug it from the mains. Ground yurself by touching the cabinet. Now remove the HDD CAbles from Both motherboard and HDD. Blow some air on the ends of the cables and also the points where you put in the cables on the motherboard and HDD. Now plug it back. Start your PC and directly go to the BIOS and check if your HDD is detected or not. IF yes just reboot the pc and start ir. IF not then some issue here. You can also unplug the HDD and get it to yur Friends pc and check if it works on the first attempt or still it takes time.If it works there then you can narrowdown the problem in yur PC. IF it does the same there Get yur PC to the desktop anyways. Once done go to your HDD manufacturers website. BAck up your data first. Download a software that can do a low level format on your HDD. Follow the instructions and do a low level format and then reinstall the OS. If it still does the same replace it if its under warranty. \n\nSo you got the solution. GO follow it get back on your PC as soon as possible. Best of luck.
36219
1) if it's a power supply issue, replace the power supply in the host machine.\n\n2)You can pull the drive and install it as a secondary internal drive in another machine.\n\n3)Buy an external usb or firewire enclosure, install your hard drive in it. And now you have the ability to connect that hard drive to any computer with a usb or firewire connection.
362614
If the hard drives aren't being detected by another PC and not even by the BIOS there's two possible problems.  The hard drive control board is fried or the interface cable is bad.  If you aren't sure about the jumpers remove them and plug the black connector into the drive, that way it's the only drive and it will set as master, if it works you know it will be the jumpers.  Usually moving the jumpers to the far left setting sets the drive to Cable Select, on your IDE cable black is mater and grey is slave, try that.\n\nAlso, is the drive even coming online, you'll here it when power is applied, if it is not even doing that then you can rest assured your drive is dead and pretty much unrepairable or irrecoverable save a miracle, though there are data restoration services, they charge by the megabyte.\n\nI'd say that if you have it plugged into power and at least just try having one connected on the black IDE connector and it does nothing, like I said, it's dead.
1087571
Make sure your hard drive is formatted with the FAT-32 system.  Check the file name.  If it begins with a period, it will be hidden.\n\nAlso, check to see what type of extension the image has.  Mac OS X is tought to ignore some file types, mainly for it's HFS formatting.  I can't think of any case in which this would happen, but it's worth a shot.  Open Terminal and type:\n\ndefaults write com.apple.finder AppleShowAllFiles TRUE\nkillall Finder\n\nThat will show all of the hidden files.  If your image appears here, you may have to go back to your PC and resave them to a standard format\n\nJust retype the stuff in the Terminal, except put FALSE instead of TRUE
877111
I could be wrong, but is the hard drive formatted for the Mac?  You may need to format it so it can ready/write on it.\n\nI dont know Mac's too well.  Has the device ever been connected to a PC?  If so, it may have a different file format.  That is why you cant do anything.  If there is anything on the drive, formatting it would remove that just to warn you.  I dont know how to change formats in a Mac.  Hopefully someone can chime in on that.
500026
If you can see the contents of the drive on another pc, then it might be necessary to reinitialize the usbhub attibute on your pc.  Go to my computer, right click and choose manage.  bring up the the device manager, and delete the usb hub. then have the computer re-review the pc components.  this should bring the hub back up with the right drivers.  then put the stick in and see what happens
232837
Your external drive is let’s say e just type after c: (you are in DOS) go to start and run (type ”command.com”) there is the black screen type “cd ..” you must do this till you are at c: then type “ sys e: “(enter) Then you see the message system is transferred close the screen with typing “exit.” It will work, you can use the drive and read from it ;-)
286174
go to my computer.. Drive letters will be listed there according to ur partitions..\n\nwithout hardisk connection, u cant boot into windows..\nif u r in windows, then ur hard disk is working and can access it thru My Computer..\n\nIf u connected one more hard disk and wanna access it, u can access thru My computer..\n\nbut if the drives are not displaying:\n\n-check the jumber settings of the second hard disk.. set it as slave..\n\n--check whether it is properly plugged(power/data cable)..