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  • Status: Solved
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USB External Drive Causing Others to Deactivate

Have recently acquired a usb Maxtor Basics 1.5 Tb drive with the idea of replacing an existing 1 Tb Maxtor onetouch. Also have a smaller Seagate 250mb usb external drive which I need to keep as well.

Initial problem was that my system refused to recognise the new drive at all. I upgraded the BIOS. It then recognised the new drive but stopped recognising the old drives. Or so I thought. Then I found that it was "either or". I could either have my 2 old drives plugged in, or my single new drive.

If it had just been a capacity issue, I'd have settled for that. But I need the two drives for business purposes. Furthermore, the new drive doesn't just stop the other usb drives being detected, it prevents any other usb storage media being recognised. My usb memory sticks AND my camera can not be plugged in to the system, if I've got the 1.5Tb drive up and running.

I've gone looking for known incompatibilities between my motherboard (ABIT IS7-E) and the Maxtor but can't find any hints. Hoping someone here has run into similar difficulties (and, hopefully, resolved them)
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mjacobs2929
Asked:
mjacobs2929
2 Solutions
 
JohnnyCanuckCommented:
Your USB may not be supplying enough power to run all the drives.  Do you have a powered USB hub you can try?
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Mohammed HamadaSenior IT ConsultantCommented:
Use this program to list all the old devices and clear them, and try to clear the other 2 old HDDs... then reconnect them all together
http://www.nirsoft.net/utils/usb_devices_view.html
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Michael-BestCommented:
Sounds like a driver problem.
Check drivers are correct with:
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Update all the DRIVERS with DriverMax:
OS: Windows XP or Windows Vista
http://drivermax.en.softonic.com/
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I prefer DriverScanner 2009
http://www.infopackets.com/news/software/reviews/2009/20090123_driverscanner_2009_review.htm
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AndyFielderCommented:
It sounds to me more like there is a lack of power being supplied, is the portable hdd powered? Is the usb hub powered?
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MrMintanetCommented:
Sounds like you have bad USB cables.  Try swapping cables out with fresh ones.
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MrMintanetCommented:
Also, have you considered removing them from the enclosure and just putting them in your computer?  What OS are you using?
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mjacobs2929Author Commented:
the solution was to add a pci usb board. The addition 4 slots sorted it.
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