Seagate Momentus 5400.2 diagnosis

[L&F_ivo]

Hello,

I have a seagate Momentus 5400.2 disk which is having trouble initializing.
When HDD is powered:
1. Disk spins up
2. Moves head
3. Parks head
4. Spins down

This all happens in 2 a 3 seconds and is repeated until I power it off.
I connected to the terminal interface and the following repeating pattern occurs:
Head Mask FFFF - FInterface task reset
4096k x 16 buffer detected
MERCURY - 1_Disk 3.06 01-19-05 14:20
Head Mask FFFF - FInterface task reset
4096k x 16 buffer detected
MERCURY - 1_Disk 3.06 01-19-05 14:20
Head Mask FFFF - FInterface task reset
4096k x 16 buffer detected
MERCURY - 1_Disk 3.06 01-19-05 14:20
[...etc]


I am expecting something following "Head Mask FFFF - F...", But it appears to reset after that.

Anyone ideas about what could be the issue here or how I can proceed?

[labtech]

Heads issue and possible platter damage.
Stop powering on and seek professional service for an accurate evaluation.

[lostandfound]

Heads issue and possible platter damage.
Stop powering on and seek professional service for an accurate evaluation.

Is your opinion based on the symptoms, or the output from the terminal?

[drc]

Terminal log looks like it would if power were being repeatedly interrupted. Check your wiring and PCB.

[northwind]

Yes looks like some problem with power. Cables, pcb, connections...

[labtech]

drc and northwind have valid points. I may have jumped the gun a bit, hence I suggested for you to get an accurate evaluation from pro.