Seagate ST9144 manual Mounting specifications, Installation trouble-shooting

16 ST9144 Family Installation Guide, Rev. B

Mounting specifications

The ST9144 family drives are built with metric mounting screw threads. Screw insertion depth is limited to 0.150 inches (3.81 mm) maximum on the side mounting holes and 0.190 inches (4.82 mm) maximum on the bottom mounting holes. The screw size for the bottom and the side mounting holes is M3X0.5.

Caution. Do not exceed 3 inch-lbs torque for mounting screws.

ST9051A only. ST9051A drive with part number 914003-XXX has standard screw thread size: 4-40 UNC-2B.

ST9052A only. Screw insertion depth on the ST9052A is limited to 0.1490 inches (3.80 mm) maximum on the side and bottom mounting holes.

Installation trouble-shooting

Before you begin trouble-shooting, read and be aware of all the considerations discussed in this section. The suggestions pre- sented here resolve the vast majority of installation problems.

Warning. Always power down the system before changing jumper settings or unplugging cables and cards.

∙Verify compatibility. Check the documentation for the host adapter and the drive to confirm that these components are appropriately matched for each other and to your system.

∙Verify your configuration. Refer to the drive and controller installation guides to make sure all jumper settings suit your configuration requirements.

∙Check all cables. Make sure all cables are securely con- nected. Ribbon cables are especially fragile. Make sure they are not crimped or damaged in any way. Having extra cables on hand for trouble-shooting saves time and frustration.