To: chrissyqld
I am a new comer of Tom's Hardware.
I was stuck by my Seagate HDD yesterday.
Barracuda 7200.11
500GB SATA II HDD
Model: ST3500320AS
Firmware: SD15
Same as you possibly.
It does not show up during BIOS AHCI Drive init.
Checking Internet, it is a firmware issue.
My Seagate is...