I have a 1.5TB Seagate 7200.11 that died. The platter still spins up initially when attached to a machine, but then the drive clicks and spins down. Then the cycle repeats. I've found a few sites that sell replacement PCBs, however I don't know if the PCB is the issue, or something else. Given the symptoms above, is it at all likely that a PCB replacement would help? If not, I won't waste my money on the PCB replacement.

Note: I put the drive in an external ESATA controller and tried hooking it up to a Linux box here at work and got some error messages in the logs. I can post them if anyone thinks it will help in determining whether a PCB swap would fix the problem I'm running into.