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Troubleshooting
If you have problems installing or using your Adaptec ACS-120
USB Enclosure, work through this list of suggestions:
■ Ensure that the disk drive has been properly installed.
■ Try connecting the enclosure to your computer through a
different USB port.
■ Try connecting the enclosure to your computer using a different
USB cable.
■ Try plugging the USB Y-cable’s secondary connector (shown on
page 5) into any USB port on your computer, as described on
page 10. (You may want to do this even if the LED indicator on
the enclosure is green and even though you may not receive an
error message from the operating system.)
If the problem persists, try connecting an external power
supply, as described on page 10.
■ If you are using Windows with a file system other than NTFS,
and the file system of the disk drive installed in the Adaptec
ACS-120 is NTSF, Windows may not recognize or be able to
read from or write to the disk drive.
See the Table below for compatibility information:
Operating System
File System
ACS-120 Disk Drive
File System
Compatibility
FAT16 FAT16 OK
FAT32 or NTFS No
FAT32 FAT16 or FAT32 OK
NTFS No
NTFS FAT16 or FAT32 or NTFS Yes