3.5" External Hard Disk Drive Trouble Shooting

Trouble shooting for 3.5" External Hard Disk Drive

Symptom

After power-on the drive and connect to computer, the drive can't work, and you can hear the drive spin, stop, spin and stop, but it can't spin up finally.

Reason

The AC adapter in the package is 1.25A, but the hard disk drive you are using is probably needs more power to work, so the drive can't spin up for work properly.

Solution

Use 2A or higher current AC adapter to solve this power problem.

Tested Drives

We have tested some major brand of large capacity hard disk drives, please see the following table. This table will be updated when we test more drives.

Brand	Product Name/Capacity	Model	Labeled Power Required		Test Result		Remark
Brand	Product Name/Capacity	Model	5V	12V	1.25A Adapter	2A Adapter	Remark
Maxtor	DiamondMax 16 250GB, 5400RPM 2M Buffer	4A250J0	585mA	690mA	OK	OK	-
Maxtor	DiamondMax Plus 9 200GB, 7200RPM 8M Buffer	6Y200P0	670mA	960mA	Fail	OK	This drive must use 2A AC adapter
Western Digital	WD2000BB 200GB, 7200RPM 2M Buffer	WD2000BB	750mA	900mA	Fail	OK	This drive must use 2A AC adapter
	WD2000JB 200GB, 7200RPM 8M Buffer	WD2000JB	750mA	900mA	Fail	OK	This drive must use 2A AC adapter
	WD2500BB 250GB, 7200RPM 2M Buffer	WD2500BB	750mA	900mA	Fail	OK	This drive must use 2A AC adapter
	WD2500JB 250GB, 7200RPM 8M Buffer	WD2500JB	750mA	900mA	Fail	OK	This drive must use 2A AC adapter
Hitachi	Deskstar 160GB, 7200RPM 2M buffer	HDS722516VLAT20	500mA	700mA	OK	OK	-
	Deskstar 160GB, 7200RPM 8M buffer	HDS722516VLAT80	500mA	700mA	OK	OK	-
	Deskstar 120GB, 7200RPM 2M buffer	IC35L120AVV207-0	500mA	700mA	OK	OK	-
	Deskstar 250GB, 7200RPM 8M buffer	HDS722525VLAT80	500mA	700mA	OK	OK	-