Describe in detail what happens when neither works. No drive letters, can't write, etc.
Also, are you using the rear USB ports?
Bob
Both drives work fine when only one is hooked up to my pc, but when I try to plug the 2nd hard drive in neither drive works.
I have one Maxtor Personal Storage 3100 100GB
And one Western Digital My Book 320GB Essential Edition
Both USB 2.0
Maxtor NTFS and WD FAT32
My PC is an HP Pavilion m7480n. Thanks For Your Help.

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