External USB drive not recognized.

I have two LaCie external drive which work fine, but all my other external drive aren't recognized.
I know this was happening with 10.4.10, any way to fix this with Leopard?

Me too:
USB4500 FW1.04:
Version: 0.01
Bus Power (mA): 500
Speed: Up to 480 Mb/sec
Manufacturer: DATAST0R Technology Corp
Product ID: 0x4500
Serial Number: 1966051022645658
Vendor ID: 0xed06
System profiler sees it, Virtual PC sees it in the USB settings, but it does not work in Windows on VPC.
USB prober sees it:
High Speed device @ 5 (0x5B300000): ...... Composite device: "USB4500 FW1.04"
Device Descriptor
Descriptor Version Number: 0x0200
Device Class: 0 (Composite)
Device Subclass: 0
Device Protocol: 0
Device MaxPacketSize: 64
Device VendorID/ProductID: 0xED06/0x4500 (unknown vendor)
Device Version Number: 0x0001
Number of Configurations: 1
Manufacturer String: 16 "DATAST0R Technology Corp"
Product String: 32 "USB4500 FW1.04"
Serial Number String: 48 "1966051022645658"
Configuration Descriptor: ................................."1966051022645658"
Length (and contents): 32
Number of Interfaces: 1
Configuration Value: 1
Attributes: 0xC0 (self-powered)
MaxPower: 98 ma
Interface #0 - Mass Storage/SCSI
Device Qualifier Descriptor
Descriptor Version Number: 0x0200
Device Class 0 (Composite)
Device Subclass 0
Device Protocol 0
Device MaxPacketSize: 64
Number of Configurations: 1
bReserved: 0
Other Speed Configuration Descriptor: ....................."1966051022645658"
Length (and contents): 32
Number of Interfaces: 1
Configuration Value: 1
Attributes: 0xC0 (self-powered)
MaxPower: 98 ma
Interface #0 - Mass Storage/SCSI
... but USB Prober gets this same error over and over:
314.289 [1] AppleUSBEHCI[0x1f05800]::Found a transaction past the completion deadline on bus 0x5b, timing out! (Addr: 5, EP: 2)
314.289 [1] AppleUSBEHCI[0x1f05800]::Found a transaction past the completion deadline on bus 0x5b, timing out! (Addr: 5, EP: 2)
Worked like a charm on 10.4.10 before the upgrade ... ... and it still works great if I plug it to my Windows workstation ...

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Attachments:
USB-NotRecognized.jpg ‏28 KB

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<Subject Edited by Host>

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Please post the HP product number for your PC. How to Find the HP Model Number and the HP Product Number or let HP automatically find your PC model number and HP network attached printers. This will allow others to review your issue, make suggestions and review your responses. This is usually the best way to get assistance.
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I was having same trouble and finally found a solution by hooking my external drive to my time capsule through a powered USB router. When I did this, the disk was finally recognized. However I received a message from Airport Setup Utility that the external disk needed repair. (it had been formatted to a Mac OS Extended (Journaled) format previously).
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External hard drive not recognized... help please.

okay, well here is the story:
my iBook G4 had its stock 30gb hard drive in it and it was running extremely low on space. so i figured i didn't want to carry around an external hard drive, therefore i would buy an internal hard drive an install it. so i purchased a new 2.5" 80gb hard drive and called up the local apple store. they told me that although it was under warranty, that it did not cover hard drive installation. so i looked it up online and found step by step instructions to install the hard drive. so after lots of hard work and many screws, i installed the new hard drive successfully... but i still had this perfect 30gb hard drive. i thought maybe to save a few bucks i could turn it into a usb external hard drive. i found an enclosure for the hard drive and a usb 2.0 cable and plugged it into my ibook. it was recognized and everything. i put some files on the external hard drive and transferred it to another mac. this is where the trouble started. i plugged the hard drive into a PowerMac G4, and it was not recognized... so i tried it on a different mac. this time on a PowerBook G4, but no luck. this issue has been troubling me for a few weeks. but then i tried it on a similar iBook G4... and it was recognized. but i don't know why it was only recognized only on the iBook G4 (not the same iBook G4 it was pulled out of) and no other macs.
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I can walk you through formatting the hard drive:
1. Hook it up to an iBook that recognizes it.
2. Go into your Applications folder, then scroll down to Utilities. Open Utilities and scroll down a bit and you should see Disk Utility. Double-click.
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4. Your external hard drive will probably be the second catagory. Click it.
5. In the center-top you should see the tabs First Aid, Erase, Partition, RAID, and Restore. Click the Erase tab.
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iBook G4 Mac OS X (10.4.3) 512 MB Ram, CD-RW Combo Drive, 40 Gig HD, bought in October of 2005...
Message was edited by: Hilary_Rose

HP Simple Save external hard drive not recognized on laptop.

I have tried plugging it into different USB ports on same laptop or a completely different desktop. It is never recognized. last week it was. I took it apart & tried it in a 3.5 SATA external closure. Still is not recognized. I have info on it that i desperately need. Is there any way for me to get my files off of it?

cadee
Welcome to the HP Community Forum.
I hate to be the bearer of bad news; this vintage drive might have died.
If you are lucky, it is only the power supply, although this is a thin hope and is not based at all on the facts.
Depending on your level of desperation, you might consider taking the drive to a forensic specialist.
My own Simple Save drive died suddenly one day about five months ago after several years of good service. Fortunately, I never depend on only one device for backups, else they are not backups, but instead become single points of certain failure.
I hope you find a viable solution.
We have other posts here on the forum on the subject; you might do a search and see what others have said.
I grieve for your loss.
Click the Kudos Thumbs-Up to say Thank You!
And...Click Accept as Solution when my Answer provides a Fix or Workaround!
I am pleased to provide assistance on behalf of HP. I do not work for HP.
Kind Regards,
Dragon-Fur

External USB drive not recognized.

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