Baracuda 7200.12 (ST3500413AS)

[DRCP]

Hi,

i am having seagate Baracuda 7200.12 HDD
ST3500413AS FW JC45
PCB 100535704 REV B

this hdd is not getting detected in bios.
i tried to clean contacts but no use.
nothing found any burn on PCB.
while power on PC no any think happenes like vibrations of motor(motor not starting)

what might be problem.
seems PCB problem.
How to dignose?Please guide.

Last edited by DRCP on September 9th, 2011, 4:27, edited 1 time in total.

[ici_lemmy]

Could be :
PCB,
Head stuck on platters,
dead motor.

[DRCP]

Tanks for repply
How to check PCB.
Any known componet to be check like diode etc?

[loki]

Tanks for repply
How to check PCB.
Any known componet to be check like diode etc?

Post high quality pics of the full PCB.

fzabkar has previously posted the below for PCB 100535704 REV B

http://www.users.on.net/~fzabkar/HDD/ST ... uctors.jpg
http://www.users.on.net/~fzabkar/HDD/ST ... 5V_TVS.jpg
http://www.users.on.net/~fzabkar/HDD/ST ... 2V_TVS.jpg


Loki

[DRCP]

All components are ok

[ici_lemmy]

Send it to a pro for a proprer diagnostic...

[pclab]

Can't you hear any noise from the HD?

[DRCP]

no any vibrations,intialize of hdd

[pclab]

If really no sound, could be PCB.