Question about LaCie External USB 2.0 500GB 7200 RPM 500 GB Hard Drive

Open Question

2 LaCie 500GB Hard Drives intermittently do not mount on desktop.

I purchased two 500GB LaCie Big Disk U2&F4&F8 EXTR 7200RPM 16MBUS external drives in November, 2006. I have connected them via Firewire 800 (daisy chain) to my PowerMac G5 tower running OSX 10.3.9. In February, 2007, one of them became defective and LaCie replaced it. I use them for external storage, with one mirroring the other. They power up when I start the computer and appear on the desktop. Recently, they both have had difficulty appearing on the desktop. Sometimes one or both will appear, and sometimes only one and sometimes neither appears. One drive seems to take longer than the other to spin up until the light stops flashing and that one seems the worst at appearing. I have tried checking all the connections, changing all the cables around, running Apple's Disk Utility as well as Disk Warrior, but nothing seems to make a difference. If I keep restarting one or both of them, eventually they will appear. The data on the drives is intact. Can you help me?

Posted by on


3 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 42 Answers

SOURCE: help

Take it in, controller may have malf'ed when it got unplugged, been known to happen.

Posted on Dec 09, 2007

  • 1188 Answers

SOURCE: My Lacie Hard Drive only

Please explain what you mean? When you plug in the drive it recognizes the drive but the size is showing to be extremely small?

Please let me know so I can help further.


Posted on Aug 05, 2011

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

LACie disks are mounted on the desktop
This link has product reviews and problems others have had with it. It may be worth checking out.
Let me know how it goes,

Mar 14, 2008 | LaCie External USB 2.0 500GB 7200 RPM 500...

1 Answer

LaCie Big Disk 500GB not showing up

1. the usb connector in the PC may have a broken board contact needs soldering or replacement.
2. there may be a broken USB cord to the external usb drive
3. the electronic controller in the USB case may not be working.
4. A new case may be needed with a new controller.

Jul 08, 2010 | LaCie Big Disk Extreme 500 GB Hard Drive

1 Answer

The external hdd won't show up in my computer

try with test disk file:///D:/

Mar 24, 2010 | LaCie 500GB P3 HD USB 2.0 7200RPM 8M 500...

2 Answers

Not reading

Disassemble the case, and remove the disk-drive.
Attach it as a "slave" disk-drive in some desktop computer, and see if the desktop computer can "detect" the disk-drive, and if the files on the disk-drive are still accessible.

Mar 03, 2010 | LaCie External USB 2.0 500GB 7200 RPM 500...

1 Answer

Not recognised by computer

You gotta partition it first.

Except don't format the ones that already have a Letter (or u screwed urself there)

Sep 27, 2009 | LaCie External USB 2.0 500GB 7200 RPM 500...

1 Answer

LaCie 500GB external will not show up on mac desktop. Blue light on, whirrs as if working but no icon on desktop (not mounted)

Did you format the drive using Disk Utility? Open "disk utility" from the dock icon or applications/utilities folder. Click the drive name on the left side of the disk utility window. click the "partition" tab in the window, next click the "options" tab and select GUID Partition scheme, or any Mac compatible scheme, read each explanation of the schemes. Name and resize your partitions, click apply. This is how it works running Leopard, not positive if the same applies to Tiger. I hope this helps you

Dec 14, 2008 | LaCie External USB 2.0 500GB 7200 RPM 500...

1 Answer

Lacie 500gb external drive

The disks inside the HD are not spining. The creaking noise is the HD trying to start. Next time when it does start transfer all the files ASAP cause your drive is about to die.

Sep 30, 2008 | LaCie Ethernet Disk Mini, 500 GB Hard Disk...

1 Answer

Lacie 1TB external hd won't mount!

check wires connecting them together first, ok?

then, turn off the LaCie, connect to your MacPro, and then turn on the drive..

that should show as a mounted drive.

need printer drivers update?

Mar 09, 2008 | LaCie Big Disk Extreme with Triple...

1 Answer

Mounting an external hard drive onto my I Mac

Hi, I have just checked the LACIE website, So Google LACIE, click the second result [Lacie's own site] you will get a page up with a choice box, select Australia/go click the desktop HDD. click the 500Gb usb, this will give you a page with a support and a download link. click download, here you will find a manual and drivers. Goodluck mistyman

Sep 03, 2007 | Computers & Internet

Not finding what you are looking for?
LaCie External USB 2.0 500GB 7200 RPM 500 GB Hard Drive Logo

Related Topics:

54 people viewed this question

Ask a Question

Usually answered in minutes!

Top LaCie Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Raj Patel

Level 3 Expert

917 Answers


Level 3 Expert

2600 Answers

Are you a LaCie Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides