External Hard Disk Not Working Properly

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Anonymous Poster	External Hard Disk Not Working Properly 06/10/2009 1:01 AM
	i have an external hard disk of 120 GB when i connect to my laptop it work properly,but when iused on my desktop pc i face some problems, LED of External hard blinking fastly,a noice come from HD,and not showing in my PC HD partion
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Bondy111 Guru Join Date: Nov 2007 Location: Gloucestershire, England Posts: 962	#1 Re: external hard disk not working proparly 06/10/2009 2:15 AM
	If it is USB powered, it seems as if the USB you plug it into on your desktop is either faulty, sending surges through the hard drive. Is the desktop plugged into a surge protector? A laptop battery regulates the voltage going through, but you need external power surge for a desktop. __________________ bondy111
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tdesmit Guru Join Date: Apr 2007 Location: Wichita, Kansas USA Posts: 653 Good Answers: 30	#2 Re: External Hard Disk Not Working Properly 06/10/2009 9:02 AM
	Guest (please register), If the external drive is powered from the USB bus, and doesn't have a separate power connection, I would have to guess that your desktop computer's USB port does not supply enough power to run the drive, this is not unusual. If you have USB ports on the rear panel of your desktop system, you may give those a try, if you haven't already. Usually, the rear panel USB ports are "high power" ports, supplying the maximum current allowed under the USB specification. Often, ports on the front are connected to a USB hub internal to the computer, and will not supply the full spec USB power. I've seen this many times. If your external drive has a separate power connection, then my previous explanation is not valid, and we would need more information to provide any useful answers. Tom
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Andy Germany Guru Join Date: Sep 2006 Location: Near Frankfurt am Main, Germany. 50.390866N, 8.884827E Posts: 17996 Good Answers: 200	#4 In reply to #2 Re: External Hard Disk Not Working Properly 06/11/2009 6:09 AM
	GA from me, my thoughts exactly...... One usually expects a Laptop to see the same problems as well, but not always of course! __________________ "What others say about you reveals more about them, than it does you." Anon.
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#3 Re: External Hard Disk Not Working Properly 06/10/2009 11:35 PM
	Is it under warranty? Can you install it internally? This may clear up any cabling issue. What operating systems are involved? How is the ext HD formatted? __________________ If death came with a warning there would be a whole lot less of it.
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Haajee Guru Join Date: Feb 2006 Posts: 1758 Good Answers: 6	#5 Re: External Hard Disk Not Working Properly 06/14/2009 11:51 PM
	Regards. It seems to be a Laptop HDD & I reply in that context. 3.5" HDD should have a separate Power Supply or Connector for it to be supplied from PC. Details please If powered from USB Port the it should have a cable Assy which has 1 connector on one side [should go to the External Drive] * 2 connectors on the other side. Both should be plugged into 2 USB ports of PC /Laptop. One is Power + Data & the 2nd only supplemented power . If it works OK. If not then the PCB in the Ext Box is @ fault. Surely the you have to try another known to be a GOOD box. Insert your drive in it & try Have a good day !
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Andy Germany (1); Bondy111 (1); bwire (1); Haajee (1); tdesmit (1)

You might be interested in: Hard Drives, RAID Disk Arrays, PCMCIA Hard Drive Cards

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